diff --git a/changelog.md b/changelog.md
index c192d5a790..68b825ad8f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -114,28230 +114,6 @@ index 861b76ed..13daa510 100644
 +      ScreenId screenId
 ```
 
-## ci: generate after split (#330) — _2025-08-13T10:53:00.000Z_
-######  Diff: [`1e97f0a...1c3e94f`](https://github.com/ChromeDevTools/devtools-protocol/compare/1e97f0a...1c3e94f)
-
-```diff
-@@ browser_protocol.pdl:8 @@ version
-   major 1
-   minor 3
- 
--experimental domain Accessibility
--  depends on DOM
--
--  # Unique accessibility node identifier.
--  type AXNodeId extends string
--
--  # Enum of possible property types.
--  type AXValueType extends string
--    enum
--      boolean
--      tristate
--      booleanOrUndefined
--      idref
--      idrefList
--      integer
--      node
--      nodeList
--      number
--      string
--      computedString
--      token
--      tokenList
--      domRelation
--      role
--      internalRole
--      valueUndefined
--
--  # Enum of possible property sources.
--  type AXValueSourceType extends string
--    enum
--      attribute
--      implicit
--      style
--      contents
--      placeholder
--      relatedElement
--
--  # Enum of possible native property sources (as a subtype of a particular AXValueSourceType).
--  type AXValueNativeSourceType extends string
--    enum
--      description
--      figcaption
--      label
--      labelfor
--      labelwrapped
--      legend
--      rubyannotation
--      tablecaption
--      title
--      other
--
--  # A single source for a computed AX property.
--  type AXValueSource extends object
--    properties
--      # What type of source this is.
--      AXValueSourceType type
--      # The value of this property source.
--      optional AXValue value
--      # The name of the relevant attribute, if any.
--      optional string attribute
--      # The value of the relevant attribute, if any.
--      optional AXValue attributeValue
--      # Whether this source is superseded by a higher priority source.
--      optional boolean superseded
--      # The native markup source for this value, e.g. a `<label>` element.
--      optional AXValueNativeSourceType nativeSource
--      # The value, such as a node or node list, of the native source.
--      optional AXValue nativeSourceValue
--      # Whether the value for this property is invalid.
--      optional boolean invalid
--      # Reason for the value being invalid, if it is.
--      optional string invalidReason
--
--  type AXRelatedNode extends object
--    properties
--      # The BackendNodeId of the related DOM node.
--      DOM.BackendNodeId backendDOMNodeId
--      # The IDRef value provided, if any.
--      optional string idref
--      # The text alternative of this node in the current context.
--      optional string text
--
--  type AXProperty extends object
--    properties
--      # The name of this property.
--      AXPropertyName name
--      # The value of this property.
--      AXValue value
--
--  # A single computed AX property.
--  type AXValue extends object
--    properties
--      # The type of this value.
--      AXValueType type
--      # The computed value of this property.
--      optional any value
--      # One or more related nodes, if applicable.
--      optional array of AXRelatedNode relatedNodes
--      # The sources which contributed to the computation of this property.
--      optional array of AXValueSource sources
--
--  # Values of AXProperty name:
--  # - from 'busy' to 'roledescription': states which apply to every AX node
--  # - from 'live' to 'root': attributes which apply to nodes in live regions
--  # - from 'autocomplete' to 'valuetext': attributes which apply to widgets
--  # - from 'checked' to 'selected': states which apply to widgets
--  # - from 'activedescendant' to 'owns' - relationships between elements other than parent/child/sibling.
--  type AXPropertyName extends string
--    enum
--      actions
--      busy
--      disabled
--      editable
--      focusable
--      focused
--      hidden
--      hiddenRoot
--      invalid
--      keyshortcuts
--      settable
--      roledescription
--      live
--      atomic
--      relevant
--      root
--      autocomplete
--      hasPopup
--      level
--      multiselectable
--      orientation
--      multiline
--      readonly
--      required
--      valuemin
--      valuemax
--      valuetext
--      checked
--      expanded
--      modal
--      pressed
--      selected
--      activedescendant
--      controls
--      describedby
--      details
--      errormessage
--      flowto
--      labelledby
--      owns
--      url
--
--  # A node in the accessibility tree.
--  type AXNode extends object
--    properties
--      # Unique identifier for this node.
--      AXNodeId nodeId
--      # Whether this node is ignored for accessibility
--      boolean ignored
--      # Collection of reasons why this node is hidden.
--      optional array of AXProperty ignoredReasons
--      # This `Node`'s role, whether explicit or implicit.
--      optional AXValue role
--      # This `Node`'s Chrome raw role.
--      optional AXValue chromeRole
--      # The accessible name for this `Node`.
--      optional AXValue name
--      # The accessible description for this `Node`.
--      optional AXValue description
--      # The value for this `Node`.
--      optional AXValue value
--      # All other properties
--      optional array of AXProperty properties
--      # ID for this node's parent.
--      optional AXNodeId parentId
--      # IDs for each of this node's child nodes.
--      optional array of AXNodeId childIds
--      # The backend ID for the associated DOM node, if any.
--      optional DOM.BackendNodeId backendDOMNodeId
--      # The frame ID for the frame associated with this nodes document.
--      optional Page.FrameId frameId
--
--  # Disables the accessibility domain.
--  command disable
--
--  # Enables the accessibility domain which causes `AXNodeId`s to remain consistent between method calls.
--  # This turns on accessibility for the page, which can impact performance until accessibility is disabled.
--  command enable
--
--  # Fetches the accessibility node and partial accessibility tree for this DOM node, if it exists.
--  experimental command getPartialAXTree
--    parameters
--      # Identifier of the node to get the partial accessibility tree for.
--      optional DOM.NodeId nodeId
--      # Identifier of the backend node to get the partial accessibility tree for.
--      optional DOM.BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper to get the partial accessibility tree for.
--      optional Runtime.RemoteObjectId objectId
--      # Whether to fetch this node's ancestors, siblings and children. Defaults to true.
--      optional boolean fetchRelatives
--    returns
--      # The `Accessibility.AXNode` for this DOM node, if it exists, plus its ancestors, siblings and
--      # children, if requested.
--      array of AXNode nodes
--
--  # Fetches the entire accessibility tree for the root Document
--  experimental command getFullAXTree
--    parameters
--      # The maximum depth at which descendants of the root node should be retrieved.
--      # If omitted, the full tree is returned.
--      optional integer depth
--      # The frame for whose document the AX tree should be retrieved.
--      # If omitted, the root frame is used.
--      optional Page.FrameId frameId
--    returns
--      array of AXNode nodes
--
--  # Fetches the root node.
--  # Requires `enable()` to have been called previously.
--  experimental command getRootAXNode
--    parameters
--      # The frame in whose document the node resides.
--      # If omitted, the root frame is used.
--      optional Page.FrameId frameId
--    returns
--      AXNode node
--
--  # Fetches a node and all ancestors up to and including the root.
--  # Requires `enable()` to have been called previously.
--  experimental command getAXNodeAndAncestors
--    parameters
--      # Identifier of the node to get.
--      optional DOM.NodeId nodeId
--      # Identifier of the backend node to get.
--      optional DOM.BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper to get.
--      optional Runtime.RemoteObjectId objectId
--    returns
--      array of AXNode nodes
--
--  # Fetches a particular accessibility node by AXNodeId.
--  # Requires `enable()` to have been called previously.
--  experimental command getChildAXNodes
--    parameters
--      AXNodeId id
--      # The frame in whose document the node resides.
--      # If omitted, the root frame is used.
--      optional Page.FrameId frameId
--    returns
--      array of AXNode nodes
--
--  # Query a DOM node's accessibility subtree for accessible name and role.
--  # This command computes the name and role for all nodes in the subtree, including those that are
--  # ignored for accessibility, and returns those that match the specified name and role. If no DOM
--  # node is specified, or the DOM node does not exist, the command returns an error. If neither
--  # `accessibleName` or `role` is specified, it returns all the accessibility nodes in the subtree.
--  experimental command queryAXTree
--    parameters
--      # Identifier of the node for the root to query.
--      optional DOM.NodeId nodeId
--      # Identifier of the backend node for the root to query.
--      optional DOM.BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper for the root to query.
--      optional Runtime.RemoteObjectId objectId
--      # Find nodes with this computed name.
--      optional string accessibleName
--      # Find nodes with this computed role.
--      optional string role
--    returns
--      # A list of `Accessibility.AXNode` matching the specified attributes,
--      # including nodes that are ignored for accessibility.
--      array of AXNode nodes
--
--  # The loadComplete event mirrors the load complete event sent by the browser to assistive
--  # technology when the web page has finished loading.
--  experimental event loadComplete
--    parameters
--      # New document root node.
--      AXNode root
--
--  # The nodesUpdated event is sent every time a previously requested node has changed the in tree.
--  experimental event nodesUpdated
--    parameters
--      # Updated node data.
--      array of AXNode nodes
--
--experimental domain Animation
--  depends on Runtime
--  depends on DOM
--
--  # Animation instance.
--  type Animation extends object
--    properties
--      # `Animation`'s id.
--      string id
--      # `Animation`'s name.
--      string name
--      # `Animation`'s internal paused state.
--      boolean pausedState
--      # `Animation`'s play state.
--      string playState
--      # `Animation`'s playback rate.
--      number playbackRate
--      # `Animation`'s start time.
--      # Milliseconds for time based animations and
--      # percentage [0 - 100] for scroll driven animations
--      # (i.e. when viewOrScrollTimeline exists).
--      number startTime
--      # `Animation`'s current time.
--      number currentTime
--      # Animation type of `Animation`.
--      enum type
--        CSSTransition
--        CSSAnimation
--        WebAnimation
--      # `Animation`'s source animation node.
--      optional AnimationEffect source
--      # A unique ID for `Animation` representing the sources that triggered this CSS
--      # animation/transition.
--      optional string cssId
--      # View or scroll timeline
--      optional ViewOrScrollTimeline viewOrScrollTimeline
--
--  # Timeline instance
--  type ViewOrScrollTimeline extends object
--    properties
--      # Scroll container node
--      optional DOM.BackendNodeId sourceNodeId
--      # Represents the starting scroll position of the timeline
--      # as a length offset in pixels from scroll origin.
--      optional number startOffset
--      # Represents the ending scroll position of the timeline
--      # as a length offset in pixels from scroll origin.
--      optional number endOffset
--      # The element whose principal box's visibility in the
--      # scrollport defined the progress of the timeline.
--      # Does not exist for animations with ScrollTimeline
--      optional DOM.BackendNodeId subjectNodeId
--      # Orientation of the scroll
--      DOM.ScrollOrientation axis
--
--  # AnimationEffect instance
--  type AnimationEffect extends object
--    properties
--      # `AnimationEffect`'s delay.
--      number delay
--      # `AnimationEffect`'s end delay.
--      number endDelay
--      # `AnimationEffect`'s iteration start.
--      number iterationStart
--      # `AnimationEffect`'s iterations.
--      number iterations
--      # `AnimationEffect`'s iteration duration.
--      # Milliseconds for time based animations and
--      # percentage [0 - 100] for scroll driven animations
--      # (i.e. when viewOrScrollTimeline exists).
--      number duration
--      # `AnimationEffect`'s playback direction.
--      string direction
--      # `AnimationEffect`'s fill mode.
--      string fill
--      # `AnimationEffect`'s target node.
--      optional DOM.BackendNodeId backendNodeId
--      # `AnimationEffect`'s keyframes.
--      optional KeyframesRule keyframesRule
--      # `AnimationEffect`'s timing function.
--      string easing
--
--  # Keyframes Rule
--  type KeyframesRule extends object
--    properties
--      # CSS keyframed animation's name.
--      optional string name
--      # List of animation keyframes.
--      array of KeyframeStyle keyframes
--
--  # Keyframe Style
--  type KeyframeStyle extends object
--    properties
--      # Keyframe's time offset.
--      string offset
--      # `AnimationEffect`'s timing function.
--      string easing
--
--  # Disables animation domain notifications.
--  command disable
--
--  # Enables animation domain notifications.
--  command enable
--
--  # Returns the current time of the an animation.
--  command getCurrentTime
--    parameters
--      # Id of animation.
--      string id
--    returns
--      # Current time of the page.
--      number currentTime
--
--  # Gets the playback rate of the document timeline.
--  command getPlaybackRate
--    returns
--      # Playback rate for animations on page.
--      number playbackRate
--
--  # Releases a set of animations to no longer be manipulated.
--  command releaseAnimations
--    parameters
--      # List of animation ids to seek.
--      array of string animations
--
--  # Gets the remote object of the Animation.
--  command resolveAnimation
--    parameters
--      # Animation id.
--      string animationId
--    returns
--      # Corresponding remote object.
--      Runtime.RemoteObject remoteObject
--
--  # Seek a set of animations to a particular time within each animation.
--  command seekAnimations
--    parameters
--      # List of animation ids to seek.
--      array of string animations
--      # Set the current time of each animation.
--      number currentTime
--
--  # Sets the paused state of a set of animations.
--  command setPaused
--    parameters
--      # Animations to set the pause state of.
--      array of string animations
--      # Paused state to set to.
--      boolean paused
--
--  # Sets the playback rate of the document timeline.
--  command setPlaybackRate
--    parameters
--      # Playback rate for animations on page
--      number playbackRate
--
--  # Sets the timing of an animation node.
--  command setTiming
--    parameters
--      # Animation id.
--      string animationId
--      # Duration of the animation.
--      number duration
--      # Delay of the animation.
--      number delay
--
--  # Event for when an animation has been cancelled.
--  event animationCanceled
--    parameters
--      # Id of the animation that was cancelled.
--      string id
--
--  # Event for each animation that has been created.
--  event animationCreated
--    parameters
--      # Id of the animation that was created.
--      string id
--
--  # Event for animation that has been started.
--  event animationStarted
--    parameters
--      # Animation that was started.
--      Animation animation
--
--  # Event for animation that has been updated.
--  event animationUpdated
--    parameters
--      # Animation that was updated.
--      Animation animation
--
--# Audits domain allows investigation of page violations and possible improvements.
--experimental domain Audits
--  depends on Network
--
--  # Information about a cookie that is affected by an inspector issue.
--  type AffectedCookie extends object
--    properties
--      # The following three properties uniquely identify a cookie
--      string name
--      string path
--      string domain
--
--  # Information about a request that is affected by an inspector issue.
--  type AffectedRequest extends object
--    properties
--      # The unique request id.
--      optional Network.RequestId requestId
--      string url
--
--  # Information about the frame affected by an inspector issue.
--  type AffectedFrame extends object
--    properties
--      Page.FrameId frameId
--
--  type CookieExclusionReason extends string
--    enum
--      ExcludeSameSiteUnspecifiedTreatedAsLax
--      ExcludeSameSiteNoneInsecure
--      ExcludeSameSiteLax
--      ExcludeSameSiteStrict
--      ExcludeInvalidSameParty
--      ExcludeSamePartyCrossPartyContext
--      ExcludeDomainNonASCII
--      ExcludeThirdPartyCookieBlockedInFirstPartySet
--      ExcludeThirdPartyPhaseout
--      ExcludePortMismatch
--      ExcludeSchemeMismatch
--
--  type CookieWarningReason extends string
--    enum
--      WarnSameSiteUnspecifiedCrossSiteContext
--      WarnSameSiteNoneInsecure
--      WarnSameSiteUnspecifiedLaxAllowUnsafe
--      WarnSameSiteStrictLaxDowngradeStrict
--      WarnSameSiteStrictCrossDowngradeStrict
--      WarnSameSiteStrictCrossDowngradeLax
--      WarnSameSiteLaxCrossDowngradeStrict
--      WarnSameSiteLaxCrossDowngradeLax
--      WarnAttributeValueExceedsMaxSize
--      WarnDomainNonASCII
--      WarnThirdPartyPhaseout
--      WarnCrossSiteRedirectDowngradeChangesInclusion
--      WarnDeprecationTrialMetadata
--      WarnThirdPartyCookieHeuristic
--
--  type CookieOperation extends string
--    enum
--      SetCookie
--      ReadCookie
--
--  # Represents the category of insight that a cookie issue falls under.
--  type InsightType extends string
--    enum
--      # Cookie domain has an entry in third-party cookie migration readiness
--      # list:
--      # https://github.com/privacysandbox/privacy-sandbox-dev-support/blob/main/3pc-migration-readiness.md
--      GitHubResource
--      # Cookie is exempted due to a grace period:
--      # https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period
--      GracePeriod
--      # Cookie is exempted due a heuristics-based exemptiuon:
--      # https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exception
--      Heuristics
--
--  # Information about the suggested solution to a cookie issue.
--  type CookieIssueInsight extends object
--    properties
--      InsightType type
--      # Link to table entry in third-party cookie migration readiness list.
--      optional string tableEntryUrl
--
--  # This information is currently necessary, as the front-end has a difficult
--  # time finding a specific cookie. With this, we can convey specific error
--  # information without the cookie.
--  type CookieIssueDetails extends object
--    properties
--      # If AffectedCookie is not set then rawCookieLine contains the raw
--      # Set-Cookie header string. This hints at a problem where the
--      # cookie line is syntactically or semantically malformed in a way
--      # that no valid cookie could be created.
--      optional AffectedCookie cookie
--      optional string rawCookieLine
--      array of CookieWarningReason cookieWarningReasons
--      array of CookieExclusionReason cookieExclusionReasons
--      # Optionally identifies the site-for-cookies and the cookie url, which
--      # may be used by the front-end as additional context.
--      CookieOperation operation
--      optional string siteForCookies
--      optional string cookieUrl
--      optional AffectedRequest request
--      # The recommended solution to the issue.
--      optional CookieIssueInsight insight
--
--  type MixedContentResolutionStatus extends string
--    enum
--      MixedContentBlocked
--      MixedContentAutomaticallyUpgraded
--      MixedContentWarning
--
--  type MixedContentResourceType extends string
--    enum
--      AttributionSrc
--      Audio
--      Beacon
--      CSPReport
--      Download
--      EventSource
--      Favicon
--      Font
--      Form
--      Frame
--      Image
--      Import
--      JSON
--      Manifest
--      Ping
--      PluginData
--      PluginResource
--      Prefetch
--      Resource
--      Script
--      ServiceWorker
--      SharedWorker
--      SpeculationRules
--      Stylesheet
--      Track
--      Video
--      Worker
--      XMLHttpRequest
--      XSLT
--
--  type MixedContentIssueDetails extends object
--    properties
--      # The type of resource causing the mixed content issue (css, js, iframe,
--      # form,...). Marked as optional because it is mapped to from
--      # blink::mojom::RequestContextType, which will be replaced
--      # by network::mojom::RequestDestination
--      optional MixedContentResourceType resourceType
--      # The way the mixed content issue is being resolved.
--      MixedContentResolutionStatus resolutionStatus
--      # The unsafe http url causing the mixed content issue.
--      string insecureURL
--      # The url responsible for the call to an unsafe url.
--      string mainResourceURL
--      # The mixed content request.
--      # Does not always exist (e.g. for unsafe form submission urls).
--      optional AffectedRequest request
--      # Optional because not every mixed content issue is necessarily linked to a frame.
--      optional AffectedFrame frame
--
--  # Enum indicating the reason a response has been blocked. These reasons are
--  # refinements of the net error BLOCKED_BY_RESPONSE.
--  type BlockedByResponseReason extends string
--    enum
--      CoepFrameResourceNeedsCoepHeader
--      CoopSandboxedIFrameCannotNavigateToCoopPage
--      CorpNotSameOrigin
--      CorpNotSameOriginAfterDefaultedToSameOriginByCoep
--      CorpNotSameOriginAfterDefaultedToSameOriginByDip
--      CorpNotSameOriginAfterDefaultedToSameOriginByCoepAndDip
--      CorpNotSameSite
--      SRIMessageSignatureMismatch
--
--  # Details for a request that has been blocked with the BLOCKED_BY_RESPONSE
--  # code. Currently only used for COEP/COOP, but may be extended to include
--  # some CSP errors in the future.
--  type BlockedByResponseIssueDetails extends object
--    properties
--      AffectedRequest request
--      optional AffectedFrame parentFrame
--      optional AffectedFrame blockedFrame
--      BlockedByResponseReason reason
--
--  type HeavyAdResolutionStatus extends string
--    enum
--      HeavyAdBlocked
--      HeavyAdWarning
--
--  type HeavyAdReason extends string
--    enum
--      NetworkTotalLimit
--      CpuTotalLimit
--      CpuPeakLimit
--
--  type HeavyAdIssueDetails extends object
--    properties
--      # The resolution status, either blocking the content or warning.
--      HeavyAdResolutionStatus resolution
--      # The reason the ad was blocked, total network or cpu or peak cpu.
--      HeavyAdReason reason
--      # The frame that was blocked.
--      AffectedFrame frame
--
--  type ContentSecurityPolicyViolationType extends string
--    enum
--      kInlineViolation
--      kEvalViolation
--      kURLViolation
--      kSRIViolation
--      kTrustedTypesSinkViolation
--      kTrustedTypesPolicyViolation
--      kWasmEvalViolation
--
--  type SourceCodeLocation extends object
--    properties
--      optional Runtime.ScriptId scriptId
--      string url
--      integer lineNumber
--      integer columnNumber
--
--  type ContentSecurityPolicyIssueDetails extends object
--    properties
--      # The url not included in allowed sources.
--      optional string blockedURL
--      # Specific directive that is violated, causing the CSP issue.
--      string violatedDirective
--      boolean isReportOnly
--      ContentSecurityPolicyViolationType contentSecurityPolicyViolationType
--      optional AffectedFrame frameAncestor
--      optional SourceCodeLocation sourceCodeLocation
--      optional DOM.BackendNodeId violatingNodeId
--
--  type SharedArrayBufferIssueType extends string
--    enum
--      TransferIssue
--      CreationIssue
--
--  # Details for a issue arising from an SAB being instantiated in, or
--  # transferred to a context that is not cross-origin isolated.
--  type SharedArrayBufferIssueDetails extends object
--    properties
--      SourceCodeLocation sourceCodeLocation
--      boolean isWarning
--      SharedArrayBufferIssueType type
--
--  type LowTextContrastIssueDetails extends object
--    properties
--      DOM.BackendNodeId violatingNodeId
--      string violatingNodeSelector
--      number contrastRatio
--      number thresholdAA
--      number thresholdAAA
--      string fontSize
--      string fontWeight
--
--  # Details for a CORS related issue, e.g. a warning or error related to
--  # CORS RFC1918 enforcement.
--  type CorsIssueDetails extends object
--    properties
--      Network.CorsErrorStatus corsErrorStatus
--      boolean isWarning
--      AffectedRequest request
--      optional SourceCodeLocation location
--      optional string initiatorOrigin
--      optional Network.IPAddressSpace resourceIPAddressSpace
--      optional Network.ClientSecurityState clientSecurityState
--
--  type AttributionReportingIssueType extends string
--    enum
--      PermissionPolicyDisabled
--      UntrustworthyReportingOrigin
--      InsecureContext
--      # TODO(apaseltiner): Rename this to InvalidRegisterSourceHeader
--      InvalidHeader
--      InvalidRegisterTriggerHeader
--      SourceAndTriggerHeaders
--      SourceIgnored
--      TriggerIgnored
--      OsSourceIgnored
--      OsTriggerIgnored
--      InvalidRegisterOsSourceHeader
--      InvalidRegisterOsTriggerHeader
--      WebAndOsHeaders
--      NoWebOrOsSupport
--      NavigationRegistrationWithoutTransientUserActivation
--      InvalidInfoHeader
--      NoRegisterSourceHeader
--      NoRegisterTriggerHeader
--      NoRegisterOsSourceHeader
--      NoRegisterOsTriggerHeader
--      NavigationRegistrationUniqueScopeAlreadySet
--
--  type SharedDictionaryError extends string
--    enum
--      UseErrorCrossOriginNoCorsRequest
--      UseErrorDictionaryLoadFailure
--      UseErrorMatchingDictionaryNotUsed
--      UseErrorUnexpectedContentDictionaryHeader
--      WriteErrorCossOriginNoCorsRequest
--      WriteErrorDisallowedBySettings
--      WriteErrorExpiredResponse
--      WriteErrorFeatureDisabled
--      WriteErrorInsufficientResources
--      WriteErrorInvalidMatchField
--      WriteErrorInvalidStructuredHeader
--      WriteErrorNavigationRequest
--      WriteErrorNoMatchField
--      WriteErrorNonListMatchDestField
--      WriteErrorNonSecureContext
--      WriteErrorNonStringIdField
--      WriteErrorNonStringInMatchDestList
--      WriteErrorNonStringMatchField
--      WriteErrorNonTokenTypeField
--      WriteErrorRequestAborted
--      WriteErrorShuttingDown
--      WriteErrorTooLongIdField
--      WriteErrorUnsupportedType
--
--  type SRIMessageSignatureError extends string
--    enum
--      MissingSignatureHeader
--      MissingSignatureInputHeader
--      InvalidSignatureHeader
--      InvalidSignatureInputHeader
--      SignatureHeaderValueIsNotByteSequence
--      SignatureHeaderValueIsParameterized
--      SignatureHeaderValueIsIncorrectLength
--      SignatureInputHeaderMissingLabel
--      SignatureInputHeaderValueNotInnerList
--      SignatureInputHeaderValueMissingComponents
--      SignatureInputHeaderInvalidComponentType
--      SignatureInputHeaderInvalidComponentName
--      SignatureInputHeaderInvalidHeaderComponentParameter
--      SignatureInputHeaderInvalidDerivedComponentParameter
--      SignatureInputHeaderKeyIdLength
--      SignatureInputHeaderInvalidParameter
--      SignatureInputHeaderMissingRequiredParameters
--      ValidationFailedSignatureExpired
--      ValidationFailedInvalidLength
--      ValidationFailedSignatureMismatch
--      ValidationFailedIntegrityMismatch
--
--  type UnencodedDigestError extends string
--    enum
--      MalformedDictionary
--      UnknownAlgorithm
--      IncorrectDigestType
--      IncorrectDigestLength
--
--  # Details for issues around "Attribution Reporting API" usage.
--  # Explainer: https://github.com/WICG/attribution-reporting-api
--  type AttributionReportingIssueDetails extends object
--    properties
--      AttributionReportingIssueType violationType
--      optional AffectedRequest request
--      optional DOM.BackendNodeId violatingNodeId
--      optional string invalidParameter
--
--# Details for issues about documents in Quirks Mode
--# or Limited Quirks Mode that affects page layouting.
--  type QuirksModeIssueDetails extends object
--    properties
--      # If false, it means the document's mode is "quirks"
--      # instead of "limited-quirks".
--      boolean isLimitedQuirksMode
--      DOM.BackendNodeId documentNodeId
--      string url
--      Page.FrameId frameId
--      Network.LoaderId loaderId
--
--  deprecated type NavigatorUserAgentIssueDetails extends object
--    properties
--      string url
--      optional SourceCodeLocation location
--
--  type SharedDictionaryIssueDetails extends object
--    properties
--      SharedDictionaryError sharedDictionaryError
--      AffectedRequest request
--
--  type SRIMessageSignatureIssueDetails extends object
--    properties
--      SRIMessageSignatureError error
--      string signatureBase
--      array of string integrityAssertions
--      AffectedRequest request
--
--  type UnencodedDigestIssueDetails extends object
--    properties
--      UnencodedDigestError error
--      AffectedRequest request
--
--  type GenericIssueErrorType extends string
--    enum
--      FormLabelForNameError
--      FormDuplicateIdForInputError
--      FormInputWithNoLabelError
--      FormAutocompleteAttributeEmptyError
--      FormEmptyIdAndNameAttributesForInputError
--      FormAriaLabelledByToNonExistingId
--      FormInputAssignedAutocompleteValueToIdOrNameAttributeError
--      FormLabelHasNeitherForNorNestedInput
--      FormLabelForMatchesNonExistingIdError
--      FormInputHasWrongButWellIntendedAutocompleteValueError
--      ResponseWasBlockedByORB
--
--  # Depending on the concrete errorType, different properties are set.
--  type GenericIssueDetails extends object
--    properties
--      # Issues with the same errorType are aggregated in the frontend.
--      GenericIssueErrorType errorType
--      optional Page.FrameId frameId
--      optional DOM.BackendNodeId violatingNodeId
--      optional string violatingNodeAttribute
--      optional AffectedRequest request
--
--  # This issue tracks information needed to print a deprecation message.
--  # https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/frame/third_party/blink/renderer/core/frame/deprecation/README.md
--  type DeprecationIssueDetails extends object
--    properties
--      optional AffectedFrame affectedFrame
--      SourceCodeLocation sourceCodeLocation
--      # One of the deprecation names from third_party/blink/renderer/core/frame/deprecation/deprecation.json5
--      string type
--
--  # This issue warns about sites in the redirect chain of a finished navigation
--  # that may be flagged as trackers and have their state cleared if they don't
--  # receive a user interaction. Note that in this context 'site' means eTLD+1.
--  # For example, if the URL `https://example.test:80/bounce` was in the
--  # redirect chain, the site reported would be `example.test`.
--  type BounceTrackingIssueDetails extends object
--    properties
--      array of string trackingSites
--
--  # This issue warns about third-party sites that are accessing cookies on the
--  # current page, and have been permitted due to having a global metadata grant.
--  # Note that in this context 'site' means eTLD+1. For example, if the URL
--  # `https://example.test:80/web_page` was accessing cookies, the site reported
--  # would be `example.test`.
--  type CookieDeprecationMetadataIssueDetails extends object
--    properties
--      array of string allowedSites
--      number optOutPercentage
--      boolean isOptOutTopLevel
--      CookieOperation operation
--
--  type ClientHintIssueReason extends string
--    enum
--      # Items in the accept-ch meta tag allow list must be valid origins.
--      # No special values (e.g. self, none, and *) are permitted.
--      MetaTagAllowListInvalidOrigin
--      # Only accept-ch meta tags in the original HTML sent from the server
--      # are respected. Any injected via javascript (or other means) are ignored.
--      MetaTagModifiedHTML
--
--  type FederatedAuthRequestIssueDetails extends object
--    properties
--      FederatedAuthRequestIssueReason federatedAuthRequestIssueReason
--
--  # Represents the failure reason when a federated authentication reason fails.
--  # Should be updated alongside RequestIdTokenStatus in
--  # third_party/blink/public/mojom/devtools/inspector_issue.mojom to include
--  # all cases except for success.
--  type FederatedAuthRequestIssueReason extends string
--    enum
--      ShouldEmbargo
--      TooManyRequests
--      WellKnownHttpNotFound
--      WellKnownNoResponse
--      WellKnownInvalidResponse
--      WellKnownListEmpty
--      WellKnownInvalidContentType
--      ConfigNotInWellKnown
--      WellKnownTooBig
--      ConfigHttpNotFound
--      ConfigNoResponse
--      ConfigInvalidResponse
--      ConfigInvalidContentType
--      ClientMetadataHttpNotFound
--      ClientMetadataNoResponse
--      ClientMetadataInvalidResponse
--      ClientMetadataInvalidContentType
--      IdpNotPotentiallyTrustworthy
--      DisabledInSettings
--      DisabledInFlags
--      ErrorFetchingSignin
--      InvalidSigninResponse
--      AccountsHttpNotFound
--      AccountsNoResponse
--      AccountsInvalidResponse
--      AccountsListEmpty
--      AccountsInvalidContentType
--      IdTokenHttpNotFound
--      IdTokenNoResponse
--      IdTokenInvalidResponse
--      IdTokenIdpErrorResponse
--      IdTokenCrossSiteIdpErrorResponse
--      IdTokenInvalidRequest
--      IdTokenInvalidContentType
--      ErrorIdToken
--      Canceled
--      RpPageNotVisible
--      SilentMediationFailure
--      ThirdPartyCookiesBlocked
--      NotSignedInWithIdp
--      MissingTransientUserActivation
--      ReplacedByActiveMode
--      InvalidFieldsSpecified
--      RelyingPartyOriginIsOpaque
--      TypeNotMatching
--      UiDismissedNoEmbargo
--      CorsError
--      SuppressedBySegmentationPlatform
--
--  type FederatedAuthUserInfoRequestIssueDetails extends object
--    properties
--      FederatedAuthUserInfoRequestIssueReason federatedAuthUserInfoRequestIssueReason
--
--  # Represents the failure reason when a getUserInfo() call fails.
--  # Should be updated alongside FederatedAuthUserInfoRequestResult in
--  # third_party/blink/public/mojom/devtools/inspector_issue.mojom.
--  type FederatedAuthUserInfoRequestIssueReason extends string
--    enum
--      NotSameOrigin
--      NotIframe
--      NotPotentiallyTrustworthy
--      NoApiPermission
--      NotSignedInWithIdp
--      NoAccountSharingPermission
--      InvalidConfigOrWellKnown
--      InvalidAccountsResponse
--      NoReturningUserFromFetchedAccounts
--
--  # This issue tracks client hints related issues. It's used to deprecate old
--  # features, encourage the use of new ones, and provide general guidance.
--  type ClientHintIssueDetails extends object
--    properties
--      SourceCodeLocation sourceCodeLocation
--      ClientHintIssueReason clientHintIssueReason
--
--  type FailedRequestInfo extends object
--    properties
--      # The URL that failed to load.
--      string url
--      # The failure message for the failed request.
--      string failureMessage
--      optional Network.RequestId requestId
--
--  type PartitioningBlobURLInfo extends string
--    enum
--      BlockedCrossPartitionFetching
--      EnforceNoopenerForNavigation
--
--  type PartitioningBlobURLIssueDetails extends object
--    properties
--      # The BlobURL that failed to load.
--      string url
--      # Additional information about the Partitioning Blob URL issue.
--      PartitioningBlobURLInfo partitioningBlobURLInfo
--
--  type ElementAccessibilityIssueReason extends string
--    enum
--      DisallowedSelectChild
--      DisallowedOptGroupChild
--      NonPhrasingContentOptionChild
--      InteractiveContentOptionChild
--      InteractiveContentLegendChild
--      InteractiveContentSummaryDescendant
--
--  # This issue warns about errors in the select or summary element content model.
--  type ElementAccessibilityIssueDetails extends object
--    properties
--      DOM.BackendNodeId nodeId
--      ElementAccessibilityIssueReason elementAccessibilityIssueReason
--      boolean hasDisallowedAttributes
--
--  type StyleSheetLoadingIssueReason extends string
--    enum
--      LateImportRule
--      RequestFailed
--
--  # This issue warns when a referenced stylesheet couldn't be loaded.
--  type StylesheetLoadingIssueDetails extends object
--    properties
--      # Source code position that referenced the failing stylesheet.
--      SourceCodeLocation sourceCodeLocation
--      # Reason why the stylesheet couldn't be loaded.
--      StyleSheetLoadingIssueReason styleSheetLoadingIssueReason
--      # Contains additional info when the failure was due to a request.
--      optional FailedRequestInfo failedRequestInfo
--
--  type PropertyRuleIssueReason extends string
--    enum
--      InvalidSyntax
--      InvalidInitialValue
--      InvalidInherits
--      InvalidName
--
--  # This issue warns about errors in property rules that lead to property
--  # registrations being ignored.
--  type PropertyRuleIssueDetails extends object
--    properties
--      # Source code position of the property rule.
--      SourceCodeLocation sourceCodeLocation
--      # Reason why the property rule was discarded.
--      PropertyRuleIssueReason propertyRuleIssueReason
--      # The value of the property rule property that failed to parse
--      optional string propertyValue
--
--  type UserReidentificationIssueType extends string
--    enum
--      BlockedFrameNavigation
--      BlockedSubresource
--      NoisedCanvasReadback
--
--  # This issue warns about uses of APIs that may be considered misuse to
--  # re-identify users.
--  type UserReidentificationIssueDetails extends object
--    properties
--      UserReidentificationIssueType type
--      # Applies to BlockedFrameNavigation and BlockedSubresource issue types.
--      optional AffectedRequest request
--      # Applies to NoisedCanvasReadback issue type.
--      optional SourceCodeLocation sourceCodeLocation
--
--  # A unique identifier for the type of issue. Each type may use one of the
--  # optional fields in InspectorIssueDetails to convey more specific
--  # information about the kind of issue.
--  type InspectorIssueCode extends string
--    enum
--      CookieIssue
--      MixedContentIssue
--      BlockedByResponseIssue
--      HeavyAdIssue
--      ContentSecurityPolicyIssue
--      SharedArrayBufferIssue
--      LowTextContrastIssue
--      CorsIssue
--      AttributionReportingIssue
--      QuirksModeIssue
--      PartitioningBlobURLIssue
--      # Deprecated
--      NavigatorUserAgentIssue
--      GenericIssue
--      DeprecationIssue
--      ClientHintIssue
--      FederatedAuthRequestIssue
--      BounceTrackingIssue
--      CookieDeprecationMetadataIssue
--      StylesheetLoadingIssue
--      FederatedAuthUserInfoRequestIssue
--      PropertyRuleIssue
--      SharedDictionaryIssue
--      ElementAccessibilityIssue
--      SRIMessageSignatureIssue
--      UnencodedDigestIssue
--      UserReidentificationIssue
--
--  # This struct holds a list of optional fields with additional information
--  # specific to the kind of issue. When adding a new issue code, please also
--  # add a new optional field to this type.
--  type InspectorIssueDetails extends object
--    properties
--      optional CookieIssueDetails cookieIssueDetails
--      optional MixedContentIssueDetails mixedContentIssueDetails
--      optional BlockedByResponseIssueDetails blockedByResponseIssueDetails
--      optional HeavyAdIssueDetails heavyAdIssueDetails
--      optional ContentSecurityPolicyIssueDetails contentSecurityPolicyIssueDetails
--      optional SharedArrayBufferIssueDetails sharedArrayBufferIssueDetails
--      optional LowTextContrastIssueDetails lowTextContrastIssueDetails
--      optional CorsIssueDetails corsIssueDetails
--      optional AttributionReportingIssueDetails attributionReportingIssueDetails
--      optional QuirksModeIssueDetails quirksModeIssueDetails
--      optional PartitioningBlobURLIssueDetails partitioningBlobURLIssueDetails
--      deprecated optional NavigatorUserAgentIssueDetails navigatorUserAgentIssueDetails
--      optional GenericIssueDetails genericIssueDetails
--      optional DeprecationIssueDetails deprecationIssueDetails
--      optional ClientHintIssueDetails clientHintIssueDetails
--      optional FederatedAuthRequestIssueDetails federatedAuthRequestIssueDetails
--      optional BounceTrackingIssueDetails bounceTrackingIssueDetails
--      optional CookieDeprecationMetadataIssueDetails cookieDeprecationMetadataIssueDetails
--      optional StylesheetLoadingIssueDetails stylesheetLoadingIssueDetails
--      optional PropertyRuleIssueDetails propertyRuleIssueDetails
--      optional FederatedAuthUserInfoRequestIssueDetails federatedAuthUserInfoRequestIssueDetails
--      optional SharedDictionaryIssueDetails sharedDictionaryIssueDetails
--      optional ElementAccessibilityIssueDetails elementAccessibilityIssueDetails
--      optional SRIMessageSignatureIssueDetails sriMessageSignatureIssueDetails
--      optional UnencodedDigestIssueDetails unencodedDigestIssueDetails
--      optional UserReidentificationIssueDetails userReidentificationIssueDetails
--
--  # A unique id for a DevTools inspector issue. Allows other entities (e.g.
--  # exceptions, CDP message, console messages, etc.) to reference an issue.
--  type IssueId extends string
--
--  # An inspector issue reported from the back-end.
--  type InspectorIssue extends object
--    properties
--      InspectorIssueCode code
--      InspectorIssueDetails details
--      # A unique id for this issue. May be omitted if no other entity (e.g.
--      # exception, CDP message, etc.) is referencing this issue.
--      optional IssueId issueId
--
--  # Returns the response body and size if it were re-encoded with the specified settings. Only
--  # applies to images.
--  command getEncodedResponse
--    parameters
--      # Identifier of the network request to get content for.
--      Network.RequestId requestId
--      # The encoding to use.
--      enum encoding
--        webp
--        jpeg
--        png
--      # The quality of the encoding (0-1). (defaults to 1)
--      optional number quality
--      # Whether to only return the size information (defaults to false).
--      optional boolean sizeOnly
--    returns
--      # The encoded body as a base64 string. Omitted if sizeOnly is true.
--      optional binary body
--      # Size before re-encoding.
--      integer originalSize
--      # Size after re-encoding.
--      integer encodedSize
--
--  # Disables issues domain, prevents further issues from being reported to the client.
--  command disable
--
--  # Enables issues domain, sends the issues collected so far to the client by means of the
--  # `issueAdded` event.
--  command enable
--
--  # Runs the contrast check for the target page. Found issues are reported
--  # using Audits.issueAdded event.
--  command checkContrast
--    parameters
--      # Whether to report WCAG AAA level issues. Default is false.
--      optional boolean reportAAA
--
--  # Runs the form issues check for the target page. Found issues are reported
--  # using Audits.issueAdded event.
--  command checkFormsIssues
--    returns
--      array of GenericIssueDetails formIssues
--
--  event issueAdded
--    parameters
--      InspectorIssue issue
--
--# Defines commands and events for browser extensions.
--experimental domain Extensions
--  # Storage areas.
--  type StorageArea extends string
--    enum
--      session
--      local
--      sync
--      managed
--  # Installs an unpacked extension from the filesystem similar to
--  # --load-extension CLI flags. Returns extension ID once the extension
--  # has been installed. Available if the client is connected using the
--  # --remote-debugging-pipe flag and the --enable-unsafe-extension-debugging
--  # flag is set.
--  command loadUnpacked
--    parameters
--      # Absolute file path.
--      string path
--    returns
--      # Extension id.
--      string id
--  # Uninstalls an unpacked extension (others not supported) from the profile.
--  # Available if the client is connected using the --remote-debugging-pipe flag
--  # and the --enable-unsafe-extension-debugging.
--  command uninstall
--    parameters
--      # Extension id.
--      string id
--  # Gets data from extension storage in the given `storageArea`. If `keys` is
--  # specified, these are used to filter the result.
--  command getStorageItems
--    parameters
--      # ID of extension.
--      string id
--      # StorageArea to retrieve data from.
--      StorageArea storageArea
--      # Keys to retrieve.
--      optional array of string keys
--    returns
--      object data
--  # Removes `keys` from extension storage in the given `storageArea`.
--  command removeStorageItems
--    parameters
--      # ID of extension.
--      string id
--      # StorageArea to remove data from.
--      StorageArea storageArea
--      # Keys to remove.
--      array of string keys
--  # Clears extension storage in the given `storageArea`.
--  command clearStorageItems
--    parameters
--      # ID of extension.
--      string id
--      # StorageArea to remove data from.
--      StorageArea storageArea
--  # Sets `values` in extension storage in the given `storageArea`. The provided `values`
--  # will be merged with existing values in the storage area.
--  command setStorageItems
--    parameters
--      # ID of extension.
--      string id
--      # StorageArea to set data in.
--      StorageArea storageArea
--      # Values to set.
--      object values
--
--# Defines commands and events for Autofill.
--experimental domain Autofill
--  type CreditCard extends object
--    properties
--      # 16-digit credit card number.
--      string number
--      # Name of the credit card owner.
--      string name
--      # 2-digit expiry month.
--      string expiryMonth
--      # 4-digit expiry year.
--      string expiryYear
--      # 3-digit card verification code.
--      string cvc
--
--  type AddressField extends object
--    properties
--      # address field name, for example GIVEN_NAME.
--      string name
--      # address field value, for example Jon Doe.
--      string value
--
--  # A list of address fields.
--  type AddressFields extends object
--    properties
--      array of AddressField fields
--
--  type Address extends object
--    properties
--      # fields and values defining an address.
--      array of AddressField fields
--
--  # Defines how an address can be displayed like in chrome://settings/addresses.
--  # Address UI is a two dimensional array, each inner array is an "address information line", and when rendered in a UI surface should be displayed as such.
--  # The following address UI for instance:
--  # [[{name: "GIVE_NAME", value: "Jon"}, {name: "FAMILY_NAME", value: "Doe"}], [{name: "CITY", value: "Munich"}, {name: "ZIP", value: "81456"}]]
--  # should allow the receiver to render:
--  # Jon Doe
--  # Munich 81456
--  type AddressUI extends object
--    properties
--      # A two dimension array containing the representation of values from an address profile.
--      array of AddressFields addressFields
--
--  # Specified whether a filled field was done so by using the html autocomplete attribute or autofill heuristics.
--  type FillingStrategy extends string
--    enum
--      autocompleteAttribute
--      autofillInferred
--
--  type FilledField extends object
--    properties
--      # The type of the field, e.g text, password etc.
--      string htmlType
--      # the html id
--      string id
--      # the html name
--      string name
--      # the field value
--      string value
--      # The actual field type, e.g FAMILY_NAME
--      string autofillType
--      # The filling strategy
--      FillingStrategy fillingStrategy
--      # The frame the field belongs to
--      Page.FrameId frameId
--      # The form field's DOM node
--      DOM.BackendNodeId fieldId
--
--  # Emitted when an address form is filled.
--  event addressFormFilled
--    parameters
--      # Information about the fields that were filled
--      array of FilledField filledFields
--      # An UI representation of the address used to fill the form.
--      # Consists of a 2D array where each child represents an address/profile line.
--      AddressUI addressUi
--
--  # Trigger autofill on a form identified by the fieldId.
--  # If the field and related form cannot be autofilled, returns an error.
--  command trigger
--    parameters
--      # Identifies a field that serves as an anchor for autofill.
--      DOM.BackendNodeId fieldId
--      # Identifies the frame that field belongs to.
--      optional Page.FrameId frameId
--      # Credit card information to fill out the form. Credit card data is not saved.
--      CreditCard card
--
--  # Set addresses so that developers can verify their forms implementation.
--  command setAddresses
--    # Test addresses for the available countries.
--    parameters
--      array of Address addresses
--
--  # Disables autofill domain notifications.
--  command disable
--
--  # Enables autofill domain notifications.
--  command enable
--
--# Defines events for background web platform features.
--experimental domain BackgroundService
--  # The Background Service that will be associated with the commands/events.
--  # Every Background Service operates independently, but they share the same
--  # API.
--  type ServiceName extends string
--    enum
--      backgroundFetch
--      backgroundSync
--      pushMessaging
--      notifications
--      paymentHandler
--      periodicBackgroundSync
--
--  # Enables event updates for the service.
--  command startObserving
--    parameters
--      ServiceName service
--
--  # Disables event updates for the service.
--  command stopObserving
--    parameters
--      ServiceName service
--
--  # Set the recording state for the service.
--  command setRecording
--    parameters
--      boolean shouldRecord
--      ServiceName service
--
--  # Clears all stored data for the service.
--  command clearEvents
--    parameters
--      ServiceName service
--
--  # Called when the recording state for the service has been updated.
--  event recordingStateChanged
--    parameters
--      boolean isRecording
--      ServiceName service
--
--  # A key-value pair for additional event information to pass along.
--  type EventMetadata extends object
--    properties
--      string key
--      string value
--
--  type BackgroundServiceEvent extends object
--    properties
--      # Timestamp of the event (in seconds).
--      Network.TimeSinceEpoch timestamp
--      # The origin this event belongs to.
--      string origin
--      # The Service Worker ID that initiated the event.
--      ServiceWorker.RegistrationID serviceWorkerRegistrationId
--      # The Background Service this event belongs to.
--      ServiceName service
--      # A description of the event.
--      string eventName
--      # An identifier that groups related events together.
--      string instanceId
--      # A list of event-specific information.
--      array of EventMetadata eventMetadata
--      # Storage key this event belongs to.
--      string storageKey
--
--  # Called with all existing backgroundServiceEvents when enabled, and all new
--  # events afterwards if enabled and recording.
--  event backgroundServiceEventReceived
--    parameters
--      BackgroundServiceEvent backgroundServiceEvent
--
--# The Browser domain defines methods and events for browser managing.
--domain Browser
--  experimental type BrowserContextID extends string
--  experimental type WindowID extends integer
--
--  # The state of the browser window.
--  experimental type WindowState extends string
--    enum
--      normal
--      minimized
--      maximized
--      fullscreen
--
--  # Browser window bounds information
--  experimental type Bounds extends object
--    properties
--      # The offset from the left edge of the screen to the window in pixels.
--      optional integer left
--      # The offset from the top edge of the screen to the window in pixels.
--      optional integer top
--      # The window width in pixels.
--      optional integer width
--      # The window height in pixels.
--      optional integer height
--      # The window state. Default to normal.
--      optional WindowState windowState
--
--  experimental type PermissionType extends string
--    enum
--      ar
--      audioCapture
--      automaticFullscreen
--      backgroundFetch
--      backgroundSync
--      cameraPanTiltZoom
--      capturedSurfaceControl
--      clipboardReadWrite
--      clipboardSanitizedWrite
--      displayCapture
--      durableStorage
--      geolocation
--      handTracking
--      idleDetection
--      keyboardLock
--      localFonts
--      localNetworkAccess
--      midi
--      midiSysex
--      nfc
--      notifications
--      paymentHandler
--      periodicBackgroundSync
--      pointerLock
--      protectedMediaIdentifier
--      sensors
--      smartCard
--      speakerSelection
--      storageAccess
--      topLevelStorageAccess
--      videoCapture
--      vr
--      wakeLockScreen
--      wakeLockSystem
--      webAppInstallation
--      webPrinting
--      windowManagement
--
--  experimental type PermissionSetting extends string
--    enum
--      granted
--      denied
--      prompt
--
--  # Definition of PermissionDescriptor defined in the Permissions API:
--  # https://w3c.github.io/permissions/#dom-permissiondescriptor.
--  experimental type PermissionDescriptor extends object
--    properties
--      # Name of permission.
--      # See https://cs.chromium.org/chromium/src/third_party/blink/renderer/modules/permissions/permission_descriptor.idl for valid permission names.
--      string name
--      # For "midi" permission, may also specify sysex control.
--      optional boolean sysex
--      # For "push" permission, may specify userVisibleOnly.
--      # Note that userVisibleOnly = true is the only currently supported type.
--      optional boolean userVisibleOnly
--      # For "clipboard" permission, may specify allowWithoutSanitization.
--      optional boolean allowWithoutSanitization
--      # For "fullscreen" permission, must specify allowWithoutGesture:true.
--      optional boolean allowWithoutGesture
--      # For "camera" permission, may specify panTiltZoom.
--      optional boolean panTiltZoom
--
--  # Browser command ids used by executeBrowserCommand.
--  experimental type BrowserCommandId extends string
--    enum
--      openTabSearch
--      closeTabSearch
--      openGlic
--
--  # Set permission settings for given origin.
--  experimental command setPermission
--    parameters
--      # Descriptor of permission to override.
--      PermissionDescriptor permission
--      # Setting of the permission.
--      PermissionSetting setting
--      # Origin the permission applies to, all origins if not specified.
--      optional string origin
--      # Context to override. When omitted, default browser context is used.
--      optional BrowserContextID browserContextId
--
--  # Grant specific permissions to the given origin and reject all others.
--  experimental command grantPermissions
--    parameters
--      array of PermissionType permissions
--      # Origin the permission applies to, all origins if not specified.
--      optional string origin
--      # BrowserContext to override permissions. When omitted, default browser context is used.
--      optional BrowserContextID browserContextId
--
--  # Reset all permission management for all origins.
--  command resetPermissions
--    parameters
--      # BrowserContext to reset permissions. When omitted, default browser context is used.
--      optional BrowserContextID browserContextId
--
--  # Set the behavior when downloading a file.
--  experimental command setDownloadBehavior
--    parameters
--      # Whether to allow all or deny all download requests, or use default Chrome behavior if
--      # available (otherwise deny). |allowAndName| allows download and names files according to
--      # their download guids.
--      enum behavior
--        deny
--        allow
--        allowAndName
--        default
--      # BrowserContext to set download behavior. When omitted, default browser context is used.
--      optional BrowserContextID browserContextId
--      # The default path to save downloaded files to. This is required if behavior is set to 'allow'
--      # or 'allowAndName'.
--      optional string downloadPath
--      # Whether to emit download events (defaults to false).
--      optional boolean eventsEnabled
--
--  # Cancel a download if in progress
--  experimental command cancelDownload
--    parameters
--      # Global unique identifier of the download.
--      string guid
--      # BrowserContext to perform the action in. When omitted, default browser context is used.
--      optional BrowserContextID browserContextId
--
--  # Fired when page is about to start a download.
--  experimental event downloadWillBegin
--    parameters
--      # Id of the frame that caused the download to begin.
--      Page.FrameId frameId
--      # Global unique identifier of the download.
--      string guid
--      # URL of the resource being downloaded.
--      string url
--      # Suggested file name of the resource (the actual name of the file saved on disk may differ).
--      string suggestedFilename
--
--  # Fired when download makes progress. Last call has |done| == true.
--  experimental event downloadProgress
--    parameters
--      # Global unique identifier of the download.
--      string guid
--      # Total expected bytes to download.
--      number totalBytes
--      # Total bytes received.
--      number receivedBytes
--      # Download status.
--      enum state
--        inProgress
--        completed
--        canceled
--      # If download is "completed", provides the path of the downloaded file.
--      # Depending on the platform, it is not guaranteed to be set, nor the file
--      # is guaranteed to exist.
--      experimental optional string filePath
--
--  # Close browser gracefully.
--  command close
--
--  # Crashes browser on the main thread.
--  experimental command crash
--
--  # Crashes GPU process.
--  experimental command crashGpuProcess
--
--  # Returns version information.
--  command getVersion
--    returns
--      # Protocol version.
--      string protocolVersion
--      # Product name.
--      string product
--      # Product revision.
--      string revision
--      # User-Agent.
--      string userAgent
--      # V8 version.
--      string jsVersion
--
--  # Returns the command line switches for the browser process if, and only if
--  # --enable-automation is on the commandline.
--  experimental command getBrowserCommandLine
--    returns
--      # Commandline parameters
--      array of string arguments
--
--  # Chrome histogram bucket.
--  experimental type Bucket extends object
--    properties
--      # Minimum value (inclusive).
--      integer low
--      # Maximum value (exclusive).
--      integer high
--      # Number of samples.
--      integer count
--
--  # Chrome histogram.
--  experimental type Histogram extends object
--    properties
--      # Name.
--      string name
--      # Sum of sample values.
--      integer sum
--      # Total number of samples.
--      integer count
--      # Buckets.
--      array of Bucket buckets
--
--  # Get Chrome histograms.
--  experimental command getHistograms
--    parameters
--      # Requested substring in name. Only histograms which have query as a
--      # substring in their name are extracted. An empty or absent query returns
--      # all histograms.
--      optional string query
--      # If true, retrieve delta since last delta call.
--      optional boolean delta
--
--    returns
--      # Histograms.
--      array of Histogram histograms
--
--  # Get a Chrome histogram by name.
--  experimental command getHistogram
--    parameters
--      # Requested histogram name.
--      string name
--      # If true, retrieve delta since last delta call.
--      optional boolean delta
--    returns
--      # Histogram.
--      Histogram histogram
--
--  # Get position and size of the browser window.
--  experimental command getWindowBounds
--    parameters
--      # Browser window id.
--      WindowID windowId
--    returns
--      # Bounds information of the window. When window state is 'minimized', the restored window
--      # position and size are returned.
--      Bounds bounds
--
--  # Get the browser window that contains the devtools target.
--  experimental command getWindowForTarget
--    parameters
--      # Devtools agent host id. If called as a part of the session, associated targetId is used.
--      optional Target.TargetID targetId
--    returns
--      # Browser window id.
--      WindowID windowId
--      # Bounds information of the window. When window state is 'minimized', the restored window
--      # position and size are returned.
--      Bounds bounds
--
--  # Set position and/or size of the browser window.
--  experimental command setWindowBounds
--    parameters
--      # Browser window id.
--      WindowID windowId
--      # New window bounds. The 'minimized', 'maximized' and 'fullscreen' states cannot be combined
--      # with 'left', 'top', 'width' or 'height'. Leaves unspecified fields unchanged.
--      Bounds bounds
--
--  # Set size of the browser contents resizing browser window as necessary.
--  experimental command setContentsSize
--    parameters
--      # Browser window id.
--      WindowID windowId
--      # The window contents width in DIP. Assumes current width if omitted.
--      # Must be specified if 'height' is omitted.
--      optional integer width
--      # The window contents height in DIP. Assumes current height if omitted.
--      # Must be specified if 'width' is omitted.
--      optional integer height
--
--  # Set dock tile details, platform-specific.
--  experimental command setDockTile
--    parameters
--      optional string badgeLabel
--      # Png encoded image.
--      optional binary image
--
--  # Invoke custom browser commands used by telemetry.
--  experimental command executeBrowserCommand
--    parameters
--      BrowserCommandId commandId
--
--  # Allows a site to use privacy sandbox features that require enrollment
--  # without the site actually being enrolled. Only supported on page targets.
--  command addPrivacySandboxEnrollmentOverride
--    parameters
--      string url
--
--  experimental type PrivacySandboxAPI extends string
--    enum
--      BiddingAndAuctionServices
--      TrustedKeyValue
--
--  # Configures encryption keys used with a given privacy sandbox API to talk
--  # to a trusted coordinator.  Since this is intended for test automation only,
--  # coordinatorOrigin must be a .test domain. No existing coordinator
--  # configuration for the origin may exist.
--  command addPrivacySandboxCoordinatorKeyConfig
--    parameters
--      PrivacySandboxAPI api
--      string coordinatorOrigin
--      string keyConfig
--      # BrowserContext to perform the action in. When omitted, default browser
--      # context is used.
--      optional BrowserContextID browserContextId
--
--
--# This domain exposes CSS read/write operations. All CSS objects (stylesheets, rules, and styles)
--# have an associated `id` used in subsequent operations on the related object. Each object type has
--# a specific `id` structure, and those are not interchangeable between objects of different kinds.
--# CSS objects can be loaded using the `get*ForNode()` calls (which accept a DOM node id). A client
--# can also keep track of stylesheets via the `styleSheetAdded`/`styleSheetRemoved` events and
--# subsequently load the required stylesheet contents using the `getStyleSheet[Text]()` methods.
--experimental domain CSS
--  depends on DOM
--  depends on Page
--
--  type StyleSheetId extends string
--
--  # Stylesheet type: "injected" for stylesheets injected via extension, "user-agent" for user-agent
--  # stylesheets, "inspector" for stylesheets created by the inspector (i.e. those holding the "via
--  # inspector" rules), "regular" for regular stylesheets.
--  type StyleSheetOrigin extends string
--    enum
--      injected
--      user-agent
--      inspector
--      regular
--
--  # CSS rule collection for a single pseudo style.
--  type PseudoElementMatches extends object
--    properties
--      # Pseudo element type.
--      DOM.PseudoType pseudoType
--      # Pseudo element custom ident.
--      optional string pseudoIdentifier
--      # Matches of CSS rules applicable to the pseudo style.
--      array of RuleMatch matches
--
--  # CSS style coming from animations with the name of the animation.
--  type CSSAnimationStyle extends object
--    properties
--      # The name of the animation.
--      optional string name
--      # The style coming from the animation.
--      CSSStyle style
--
--  # Inherited CSS rule collection from ancestor node.
--  type InheritedStyleEntry extends object
--    properties
--      # The ancestor node's inline style, if any, in the style inheritance chain.
--      optional CSSStyle inlineStyle
--      # Matches of CSS rules matching the ancestor node in the style inheritance chain.
--      array of RuleMatch matchedCSSRules
--
--  # Inherited CSS style collection for animated styles from ancestor node.
--  type InheritedAnimatedStyleEntry extends object
--    properties
--      # Styles coming from the animations of the ancestor, if any, in the style inheritance chain.
--      optional array of CSSAnimationStyle animationStyles
--      # The style coming from the transitions of the ancestor, if any, in the style inheritance chain.
--      optional CSSStyle transitionsStyle
--
--  # Inherited pseudo element matches from pseudos of an ancestor node.
--  type InheritedPseudoElementMatches extends object
--    properties
--      # Matches of pseudo styles from the pseudos of an ancestor node.
--      array of PseudoElementMatches pseudoElements
--
--  # Match data for a CSS rule.
--  type RuleMatch extends object
--    properties
--      # CSS rule in the match.
--      CSSRule rule
--      # Matching selector indices in the rule's selectorList selectors (0-based).
--      array of integer matchingSelectors
--
--  # Data for a simple selector (these are delimited by commas in a selector list).
--  type Value extends object
--    properties
--      # Value text.
--      string text
--      # Value range in the underlying resource (if available).
--      optional SourceRange range
--      # Specificity of the selector.
--      experimental optional Specificity specificity
--
--  # Specificity:
--  # https://drafts.csswg.org/selectors/#specificity-rules
--  experimental type Specificity extends object
--    properties
--      # The a component, which represents the number of ID selectors.
--      integer a
--      # The b component, which represents the number of class selectors, attributes selectors, and
--      # pseudo-classes.
--      integer b
--      # The c component, which represents the number of type selectors and pseudo-elements.
--      integer c
--
--  # Selector list data.
--  type SelectorList extends object
--    properties
--      # Selectors in the list.
--      array of Value selectors
--      # Rule selector text.
--      string text
--
--  # CSS stylesheet metainformation.
--  type CSSStyleSheetHeader extends object
--    properties
--      # The stylesheet identifier.
--      StyleSheetId styleSheetId
--      # Owner frame identifier.
--      Page.FrameId frameId
--      # Stylesheet resource URL. Empty if this is a constructed stylesheet created using
--      # new CSSStyleSheet() (but non-empty if this is a constructed stylesheet imported
--      # as a CSS module script).
--      string sourceURL
--      # URL of source map associated with the stylesheet (if any).
--      optional string sourceMapURL
--      # Stylesheet origin.
--      StyleSheetOrigin origin
--      # Stylesheet title.
--      string title
--      # The backend id for the owner node of the stylesheet.
--      optional DOM.BackendNodeId ownerNode
--      # Denotes whether the stylesheet is disabled.
--      boolean disabled
--      # Whether the sourceURL field value comes from the sourceURL comment.
--      optional boolean hasSourceURL
--      # Whether this stylesheet is created for STYLE tag by parser. This flag is not set for
--      # document.written STYLE tags.
--      boolean isInline
--      # Whether this stylesheet is mutable. Inline stylesheets become mutable
--      # after they have been modified via CSSOM API.
--      # `<link>` element's stylesheets become mutable only if DevTools modifies them.
--      # Constructed stylesheets (new CSSStyleSheet()) are mutable immediately after creation.
--      boolean isMutable
--      # True if this stylesheet is created through new CSSStyleSheet() or imported as a
--      # CSS module script.
--      boolean isConstructed
--      # Line offset of the stylesheet within the resource (zero based).
--      number startLine
--      # Column offset of the stylesheet within the resource (zero based).
--      number startColumn
--      # Size of the content (in characters).
--      number length
--      # Line offset of the end of the stylesheet within the resource (zero based).
--      number endLine
--      # Column offset of the end of the stylesheet within the resource (zero based).
--      number endColumn
--      # If the style sheet was loaded from a network resource, this indicates when the resource failed to load
--      experimental optional boolean loadingFailed
--
--  # CSS rule representation.
--  type CSSRule extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Rule selector data.
--      SelectorList selectorList
--      # Array of selectors from ancestor style rules, sorted by distance from the current rule.
--      experimental optional array of string nestingSelectors
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # Associated style declaration.
--      CSSStyle style
--      # Media list array (for rules involving media queries). The array enumerates media queries
--      # starting with the innermost one, going outwards.
--      optional array of CSSMedia media
--      # Container query list array (for rules involving container queries).
--      # The array enumerates container queries starting with the innermost one, going outwards.
--      experimental optional array of CSSContainerQuery containerQueries
--      # @supports CSS at-rule array.
--      # The array enumerates @supports at-rules starting with the innermost one, going outwards.
--      experimental optional array of CSSSupports supports
--      # Cascade layer array. Contains the layer hierarchy that this rule belongs to starting
--      # with the innermost layer and going outwards.
--      experimental optional array of CSSLayer layers
--      # @scope CSS at-rule array.
--      # The array enumerates @scope at-rules starting with the innermost one, going outwards.
--      experimental optional array of CSSScope scopes
--      # The array keeps the types of ancestor CSSRules from the innermost going outwards.
--      experimental optional array of CSSRuleType ruleTypes
--      # @starting-style CSS at-rule array.
--      # The array enumerates @starting-style at-rules starting with the innermost one, going outwards.
--      experimental optional array of CSSStartingStyle startingStyles
--
--  # Enum indicating the type of a CSS rule, used to represent the order of a style rule's ancestors.
--  # This list only contains rule types that are collected during the ancestor rule collection.
--  experimental type CSSRuleType extends string
--    enum
--      MediaRule
--      SupportsRule
--      ContainerRule
--      LayerRule
--      ScopeRule
--      StyleRule
--      StartingStyleRule
--
--  # CSS coverage information.
--  type RuleUsage extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      StyleSheetId styleSheetId
--      # Offset of the start of the rule (including selector) from the beginning of the stylesheet.
--      number startOffset
--      # Offset of the end of the rule body from the beginning of the stylesheet.
--      number endOffset
--      # Indicates whether the rule was actually used by some element in the page.
--      boolean used
--
--  # Text range within a resource. All numbers are zero-based.
--  type SourceRange extends object
--    properties
--      # Start line of range.
--      integer startLine
--      # Start column of range (inclusive).
--      integer startColumn
--      # End line of range
--      integer endLine
--      # End column of range (exclusive).
--      integer endColumn
--
--  type ShorthandEntry extends object
--    properties
--      # Shorthand name.
--      string name
--      # Shorthand value.
--      string value
--      # Whether the property has "!important" annotation (implies `false` if absent).
--      optional boolean important
--
--  type CSSComputedStyleProperty extends object
--    properties
--      # Computed style property name.
--      string name
--      # Computed style property value.
--      string value
--
--  # CSS style representation.
--  type CSSStyle extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # CSS properties in the style.
--      array of CSSProperty cssProperties
--      # Computed values for all shorthands found in the style.
--      array of ShorthandEntry shorthandEntries
--      # Style declaration text (if available).
--      optional string cssText
--      # Style declaration range in the enclosing stylesheet (if available).
--      optional SourceRange range
--
--  # CSS property declaration data.
--  type CSSProperty extends object
--    properties
--      # The property name.
--      string name
--      # The property value.
--      string value
--      # Whether the property has "!important" annotation (implies `false` if absent).
--      optional boolean important
--      # Whether the property is implicit (implies `false` if absent).
--      optional boolean implicit
--      # The full property text as specified in the style.
--      optional string text
--      # Whether the property is understood by the browser (implies `true` if absent).
--      optional boolean parsedOk
--      # Whether the property is disabled by the user (present for source-based properties only).
--      optional boolean disabled
--      # The entire property range in the enclosing style declaration (if available).
--      optional SourceRange range
--      # Parsed longhand components of this property if it is a shorthand.
--      # This field will be empty if the given property is not a shorthand.
--      experimental optional array of CSSProperty longhandProperties
--
--  # CSS media rule descriptor.
--  type CSSMedia extends object
--    properties
--      # Media query text.
--      string text
--      # Source of the media query: "mediaRule" if specified by a @media rule, "importRule" if
--      # specified by an @import rule, "linkedSheet" if specified by a "media" attribute in a linked
--      # stylesheet's LINK tag, "inlineSheet" if specified by a "media" attribute in an inline
--      # stylesheet's STYLE tag.
--      enum source
--        mediaRule
--        importRule
--        linkedSheet
--        inlineSheet
--      # URL of the document containing the media query description.
--      optional string sourceURL
--      # The associated rule (@media or @import) header range in the enclosing stylesheet (if
--      # available).
--      optional SourceRange range
--      # Identifier of the stylesheet containing this object (if exists).
--      optional StyleSheetId styleSheetId
--      # Array of media queries.
--      optional array of MediaQuery mediaList
--
--  # Media query descriptor.
--  type MediaQuery extends object
--    properties
--      # Array of media query expressions.
--      array of MediaQueryExpression expressions
--      # Whether the media query condition is satisfied.
--      boolean active
--
--  # Media query expression descriptor.
--  type MediaQueryExpression extends object
--    properties
--      # Media query expression value.
--      number value
--      # Media query expression units.
--      string unit
--      # Media query expression feature.
--      string feature
--      # The associated range of the value text in the enclosing stylesheet (if available).
--      optional SourceRange valueRange
--      # Computed length of media query expression (if applicable).
--      optional number computedLength
--
--  # CSS container query rule descriptor.
--  experimental type CSSContainerQuery extends object
--    properties
--      # Container query text.
--      string text
--      # The associated rule header range in the enclosing stylesheet (if
--      # available).
--      optional SourceRange range
--      # Identifier of the stylesheet containing this object (if exists).
--      optional StyleSheetId styleSheetId
--      # Optional name for the container.
--      optional string name
--      # Optional physical axes queried for the container.
--      optional DOM.PhysicalAxes physicalAxes
--      # Optional logical axes queried for the container.
--      optional DOM.LogicalAxes logicalAxes
--      # true if the query contains scroll-state() queries.
--      optional boolean queriesScrollState
--      # true if the query contains anchored() queries.
--      optional boolean queriesAnchored
--
--  # CSS Supports at-rule descriptor.
--  experimental type CSSSupports extends object
--    properties
--      # Supports rule text.
--      string text
--      # Whether the supports condition is satisfied.
--      boolean active
--      # The associated rule header range in the enclosing stylesheet (if
--      # available).
--      optional SourceRange range
--      # Identifier of the stylesheet containing this object (if exists).
--      optional StyleSheetId styleSheetId
--
--  # CSS Scope at-rule descriptor.
--  experimental type CSSScope extends object
--    properties
--      # Scope rule text.
--      string text
--      # The associated rule header range in the enclosing stylesheet (if
--      # available).
--      optional SourceRange range
--      # Identifier of the stylesheet containing this object (if exists).
--      optional StyleSheetId styleSheetId
--
--  # CSS Layer at-rule descriptor.
--  experimental type CSSLayer extends object
--    properties
--      # Layer name.
--      string text
--      # The associated rule header range in the enclosing stylesheet (if
--      # available).
--      optional SourceRange range
--      # Identifier of the stylesheet containing this object (if exists).
--      optional StyleSheetId styleSheetId
--
--  # CSS Starting Style at-rule descriptor.
--  experimental type CSSStartingStyle extends object
--    properties
--      # The associated rule header range in the enclosing stylesheet (if
--      # available).
--      optional SourceRange range
--      # Identifier of the stylesheet containing this object (if exists).
--      optional StyleSheetId styleSheetId
--
--  # CSS Layer data.
--  experimental type CSSLayerData extends object
--    properties
--      # Layer name.
--      string name
--      # Direct sub-layers
--      optional array of CSSLayerData subLayers
--      # Layer order. The order determines the order of the layer in the cascade order.
--      # A higher number has higher priority in the cascade order.
--      number order
--
--  # Information about amount of glyphs that were rendered with given font.
--  type PlatformFontUsage extends object
--    properties
--      # Font's family name reported by platform.
--      string familyName
--      # Font's PostScript name reported by platform.
--      string postScriptName
--      # Indicates if the font was downloaded or resolved locally.
--      boolean isCustomFont
--      # Amount of glyphs that were rendered with this font.
--      number glyphCount
--
--  # Information about font variation axes for variable fonts
--  type FontVariationAxis extends object
--    properties
--      # The font-variation-setting tag (a.k.a. "axis tag").
--      string tag
--      # Human-readable variation name in the default language (normally, "en").
--      string name
--      # The minimum value (inclusive) the font supports for this tag.
--      number minValue
--      # The maximum value (inclusive) the font supports for this tag.
--      number maxValue
--      # The default value.
--      number defaultValue
--
--  # Properties of a web font: https://www.w3.org/TR/2008/REC-CSS2-20080411/fonts.html#font-descriptions
--  # and additional information such as platformFontFamily and fontVariationAxes.
--  type FontFace extends object
--    properties
--      # The font-family.
--      string fontFamily
--      # The font-style.
--      string fontStyle
--      # The font-variant.
--      string fontVariant
--      # The font-weight.
--      string fontWeight
--      # The font-stretch.
--      string fontStretch
--      # The font-display.
--      string fontDisplay
--      # The unicode-range.
--      string unicodeRange
--      # The src.
--      string src
--      # The resolved platform font family
--      string platformFontFamily
--      # Available variation settings (a.k.a. "axes").
--      optional array of FontVariationAxis fontVariationAxes
--
--  # CSS try rule representation.
--  type CSSTryRule extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # Associated style declaration.
--      CSSStyle style
--
--  # CSS @position-try rule representation.
--  type CSSPositionTryRule extends object
--    properties
--      # The prelude dashed-ident name
--      Value name
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # Associated style declaration.
--      CSSStyle style
--      boolean active
--
--  # CSS keyframes rule representation.
--  type CSSKeyframesRule extends object
--    properties
--      # Animation name.
--      Value animationName
--      # List of keyframes.
--      array of CSSKeyframeRule keyframes
--
--  # Representation of a custom property registration through CSS.registerProperty
--  type CSSPropertyRegistration extends object
--    properties
--      string propertyName
--      optional Value initialValue
--      boolean inherits
--      string syntax
--
--
--  # CSS font-palette-values rule representation.
--  type CSSFontPaletteValuesRule extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # Associated font palette name.
--      Value fontPaletteName
--      # Associated style declaration.
--      CSSStyle style
--
--  # CSS property at-rule representation.
--  type CSSPropertyRule extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # Associated property name.
--      Value propertyName
--      # Associated style declaration.
--      CSSStyle style
--
--  # CSS function argument representation.
--  type CSSFunctionParameter extends object
--    properties
--      # The parameter name.
--      string name
--      # The parameter type.
--      string type
--
--  # CSS function conditional block representation.
--  type CSSFunctionConditionNode extends object
--    properties
--      # Media query for this conditional block. Only one type of condition should be set.
--      optional CSSMedia media
--      # Container query for this conditional block. Only one type of condition should be set.
--      optional CSSContainerQuery containerQueries
--      # @supports CSS at-rule condition. Only one type of condition should be set.
--      optional CSSSupports supports
--      # Block body.
--      array of CSSFunctionNode children
--      # The condition text.
--      string conditionText
--
--  # Section of the body of a CSS function rule.
--  type CSSFunctionNode extends object
--    properties
--      # A conditional block. If set, style should not be set.
--      optional CSSFunctionConditionNode condition
--      # Values set by this node. If set, condition should not be set.
--      optional CSSStyle style
--
--  # CSS function at-rule representation.
--  type CSSFunctionRule extends object
--    properties
--      # Name of the function.
--      Value name
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # List of parameters.
--      array of CSSFunctionParameter parameters
--      # Function body.
--      array of CSSFunctionNode children
--
--  # CSS keyframe rule representation.
--  type CSSKeyframeRule extends object
--    properties
--      # The css style sheet identifier (absent for user agent stylesheet and user-specified
--      # stylesheet rules) this rule came from.
--      optional StyleSheetId styleSheetId
--      # Parent stylesheet's origin.
--      StyleSheetOrigin origin
--      # Associated key text.
--      Value keyText
--      # Associated style declaration.
--      CSSStyle style
--
--  # A descriptor of operation to mutate style declaration text.
--  type StyleDeclarationEdit extends object
--    properties
--      # The css style sheet identifier.
--      StyleSheetId styleSheetId
--      # The range of the style text in the enclosing stylesheet.
--      SourceRange range
--      # New style text.
--      string text
--
--  # Inserts a new rule with the given `ruleText` in a stylesheet with given `styleSheetId`, at the
--  # position specified by `location`.
--  command addRule
--    parameters
--      # The css style sheet identifier where a new rule should be inserted.
--      StyleSheetId styleSheetId
--      # The text of a new rule.
--      string ruleText
--      # Text position of a new rule in the target style sheet.
--      SourceRange location
--      # NodeId for the DOM node in whose context custom property declarations for registered properties should be
--      # validated. If omitted, declarations in the new rule text can only be validated statically, which may produce
--      # incorrect results if the declaration contains a var() for example.
--      experimental optional DOM.NodeId nodeForPropertySyntaxValidation
--    returns
--      # The newly created rule.
--      CSSRule rule
--
--  # Returns all class names from specified stylesheet.
--  command collectClassNames
--    parameters
--      StyleSheetId styleSheetId
--    returns
--      # Class name list.
--      array of string classNames
--
--  # Creates a new special "via-inspector" stylesheet in the frame with given `frameId`.
--  command createStyleSheet
--    parameters
--      # Identifier of the frame where "via-inspector" stylesheet should be created.
--      Page.FrameId frameId
--      # If true, creates a new stylesheet for every call. If false,
--      # returns a stylesheet previously created by a call with force=false
--      # for the frame's document if it exists or creates a new stylesheet
--      # (default: false).
--      optional boolean force
--    returns
--      # Identifier of the created "via-inspector" stylesheet.
--      StyleSheetId styleSheetId
--
--  # Disables the CSS agent for the given page.
--  command disable
--
--  # Enables the CSS agent for the given page. Clients should not assume that the CSS agent has been
--  # enabled until the result of this command is received.
--  command enable
--
--  # Ensures that the given node will have specified pseudo-classes whenever its style is computed by
--  # the browser.
--  command forcePseudoState
--    parameters
--      # The element id for which to force the pseudo state.
--      DOM.NodeId nodeId
--      # Element pseudo classes to force when computing the element's style.
--      array of string forcedPseudoClasses
--
--  # Ensures that the given node is in its starting-style state.
--  command forceStartingStyle
--    parameters
--      # The element id for which to force the starting-style state.
--      DOM.NodeId nodeId
--      # Boolean indicating if this is on or off.
--      boolean forced
--
--  command getBackgroundColors
--    parameters
--      # Id of the node to get background colors for.
--      DOM.NodeId nodeId
--    returns
--      # The range of background colors behind this element, if it contains any visible text. If no
--      # visible text is present, this will be undefined. In the case of a flat background color,
--      # this will consist of simply that color. In the case of a gradient, this will consist of each
--      # of the color stops. For anything more complicated, this will be an empty array. Images will
--      # be ignored (as if the image had failed to load).
--      optional array of string backgroundColors
--      # The computed font size for this node, as a CSS computed value string (e.g. '12px').
--      optional string computedFontSize
--      # The computed font weight for this node, as a CSS computed value string (e.g. 'normal' or
--      # '100').
--      optional string computedFontWeight
--
--  # Returns the computed style for a DOM node identified by `nodeId`.
--  command getComputedStyleForNode
--    parameters
--      DOM.NodeId nodeId
--    returns
--      # Computed style for the specified DOM node.
--      array of CSSComputedStyleProperty computedStyle
--
--  # Resolve the specified values in the context of the provided element.
--  # For example, a value of '1em' is evaluated according to the computed
--  # 'font-size' of the element and a value 'calc(1px + 2px)' will be
--  # resolved to '3px'.
--  # If the `propertyName` was specified the `values` are resolved as if
--  # they were property's declaration. If a value cannot be parsed according
--  # to the provided property syntax, the value is parsed using combined
--  # syntax as if null `propertyName` was provided. If the value cannot be
--  # resolved even then, return the provided value without any changes.
--  experimental command resolveValues
--    parameters
--      # Cascade-dependent keywords (revert/revert-layer) do not work.
--      array of string values
--      # Id of the node in whose context the expression is evaluated
--      DOM.NodeId nodeId
--      # Only longhands and custom property names are accepted.
--      optional string propertyName
--      # Pseudo element type, only works for pseudo elements that generate
--      # elements in the tree, such as ::before and ::after.
--      optional DOM.PseudoType pseudoType
--      # Pseudo element custom ident.
--      optional string pseudoIdentifier
--    returns
--      array of string results
--
--  experimental command getLonghandProperties
--    parameters
--      string shorthandName
--      string value
--    returns
--      array of CSSProperty longhandProperties
--
--  # Returns the styles defined inline (explicitly in the "style" attribute and implicitly, using DOM
--  # attributes) for a DOM node identified by `nodeId`.
--  command getInlineStylesForNode
--    parameters
--      DOM.NodeId nodeId
--    returns
--      # Inline style for the specified DOM node.
--      optional CSSStyle inlineStyle
--      # Attribute-defined element style (e.g. resulting from "width=20 height=100%").
--      optional CSSStyle attributesStyle
--
--  # Returns the styles coming from animations & transitions
--  # including the animation & transition styles coming from inheritance chain.
--  experimental command getAnimatedStylesForNode
--    parameters
--      DOM.NodeId nodeId
--    returns
--      # Styles coming from animations.
--      optional array of CSSAnimationStyle animationStyles
--      # Style coming from transitions.
--      optional CSSStyle transitionsStyle
--      # Inherited style entries for animationsStyle and transitionsStyle from
--      # the inheritance chain of the element.
--      optional array of InheritedAnimatedStyleEntry inherited
--
--  # Returns requested styles for a DOM node identified by `nodeId`.
--  command getMatchedStylesForNode
--    parameters
--      DOM.NodeId nodeId
--    returns
--      # Inline style for the specified DOM node.
--      optional CSSStyle inlineStyle
--      # Attribute-defined element style (e.g. resulting from "width=20 height=100%").
--      optional CSSStyle attributesStyle
--      # CSS rules matching this node, from all applicable stylesheets.
--      optional array of RuleMatch matchedCSSRules
--      # Pseudo style matches for this node.
--      optional array of PseudoElementMatches pseudoElements
--      # A chain of inherited styles (from the immediate node parent up to the DOM tree root).
--      optional array of InheritedStyleEntry inherited
--      # A chain of inherited pseudo element styles (from the immediate node parent up to the DOM tree root).
--      optional array of InheritedPseudoElementMatches inheritedPseudoElements
--      # A list of CSS keyframed animations matching this node.
--      optional array of CSSKeyframesRule cssKeyframesRules
--      # A list of CSS @position-try rules matching this node, based on the position-try-fallbacks property.
--      optional array of CSSPositionTryRule cssPositionTryRules
--      # Index of the active fallback in the applied position-try-fallback property,
--      # will not be set if there is no active position-try fallback.
--      optional integer activePositionFallbackIndex
--      # A list of CSS at-property rules matching this node.
--      optional array of CSSPropertyRule cssPropertyRules
--      # A list of CSS property registrations matching this node.
--      optional array of CSSPropertyRegistration cssPropertyRegistrations
--      # A font-palette-values rule matching this node.
--      optional CSSFontPaletteValuesRule cssFontPaletteValuesRule
--      # Id of the first parent element that does not have display: contents.
--      experimental optional DOM.NodeId parentLayoutNodeId
--      # A list of CSS at-function rules referenced by styles of this node.
--      experimental optional array of CSSFunctionRule cssFunctionRules
--
--  # Returns the values of the default UA-defined environment variables used in env()
--  experimental command getEnvironmentVariables
--    returns
--      object environmentVariables
--
--  # Returns all media queries parsed by the rendering engine.
--  command getMediaQueries
--    returns
--      array of CSSMedia medias
--
--  # Requests information about platform fonts which we used to render child TextNodes in the given
--  # node.
--  command getPlatformFontsForNode
--    parameters
--      DOM.NodeId nodeId
--    returns
--      # Usage statistics for every employed platform font.
--      array of PlatformFontUsage fonts
--
--  # Returns the current textual content for a stylesheet.
--  command getStyleSheetText
--    parameters
--      StyleSheetId styleSheetId
--    returns
--      # The stylesheet text.
--      string text
--
--  # Returns all layers parsed by the rendering engine for the tree scope of a node.
--  # Given a DOM element identified by nodeId, getLayersForNode returns the root
--  # layer for the nearest ancestor document or shadow root. The layer root contains
--  # the full layer tree for the tree scope and their ordering.
--  experimental command getLayersForNode
--    parameters
--      DOM.NodeId nodeId
--    returns
--      CSSLayerData rootLayer
--
--  # Given a CSS selector text and a style sheet ID, getLocationForSelector
--  # returns an array of locations of the CSS selector in the style sheet.
--  experimental command getLocationForSelector
--    parameters
--      StyleSheetId styleSheetId
--      string selectorText
--    returns
--      array of SourceRange ranges
--
--  # Starts tracking the given node for the computed style updates
--  # and whenever the computed style is updated for node, it queues
--  # a `computedStyleUpdated` event with throttling.
--  # There can only be 1 node tracked for computed style updates
--  # so passing a new node id removes tracking from the previous node.
--  # Pass `undefined` to disable tracking.
--  experimental command trackComputedStyleUpdatesForNode
--    parameters
--      optional DOM.NodeId nodeId
--
--  # Starts tracking the given computed styles for updates. The specified array of properties
--  # replaces the one previously specified. Pass empty array to disable tracking.
--  # Use takeComputedStyleUpdates to retrieve the list of nodes that had properties modified.
--  # The changes to computed style properties are only tracked for nodes pushed to the front-end
--  # by the DOM agent. If no changes to the tracked properties occur after the node has been pushed
--  # to the front-end, no updates will be issued for the node.
--  experimental command trackComputedStyleUpdates
--    parameters
--      array of CSSComputedStyleProperty propertiesToTrack
--
--  # Polls the next batch of computed style updates.
--  experimental command takeComputedStyleUpdates
--    returns
--      # The list of node Ids that have their tracked computed styles updated.
--      array of DOM.NodeId nodeIds
--
--  # Find a rule with the given active property for the given node and set the new value for this
--  # property
--  command setEffectivePropertyValueForNode
--    parameters
--      # The element id for which to set property.
--      DOM.NodeId nodeId
--      string propertyName
--      string value
--
--  # Modifies the property rule property name.
--  command setPropertyRulePropertyName
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string propertyName
--    returns
--      # The resulting key text after modification.
--      Value propertyName
--
--  # Modifies the keyframe rule key text.
--  command setKeyframeKey
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string keyText
--    returns
--      # The resulting key text after modification.
--      Value keyText
--
--  # Modifies the rule selector.
--  command setMediaText
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string text
--    returns
--      # The resulting CSS media rule after modification.
--      CSSMedia media
--
--  # Modifies the expression of a container query.
--  experimental command setContainerQueryText
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string text
--    returns
--      # The resulting CSS container query rule after modification.
--      CSSContainerQuery containerQuery
--
--  # Modifies the expression of a supports at-rule.
--  experimental command setSupportsText
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string text
--    returns
--      # The resulting CSS Supports rule after modification.
--      CSSSupports supports
--
--  # Modifies the expression of a scope at-rule.
--  experimental command setScopeText
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string text
--    returns
--      # The resulting CSS Scope rule after modification.
--      CSSScope scope
--
--  # Modifies the rule selector.
--  command setRuleSelector
--    parameters
--      StyleSheetId styleSheetId
--      SourceRange range
--      string selector
--    returns
--      # The resulting selector list after modification.
--      SelectorList selectorList
--
--  # Sets the new stylesheet text.
--  command setStyleSheetText
--    parameters
--      StyleSheetId styleSheetId
--      string text
--    returns
--      # URL of source map associated with script (if any).
--      optional string sourceMapURL
--
--  # Applies specified style edits one after another in the given order.
--  command setStyleTexts
--    parameters
--      array of StyleDeclarationEdit edits
--      # NodeId for the DOM node in whose context custom property declarations for registered properties should be
--      # validated. If omitted, declarations in the new rule text can only be validated statically, which may produce
--      # incorrect results if the declaration contains a var() for example.
--      experimental optional DOM.NodeId nodeForPropertySyntaxValidation
--    returns
--      # The resulting styles after modification.
--      array of CSSStyle styles
--
--  # Enables the selector recording.
--  command startRuleUsageTracking
--
--  # Stop tracking rule usage and return the list of rules that were used since last call to
--  # `takeCoverageDelta` (or since start of coverage instrumentation).
--  command stopRuleUsageTracking
--    returns
--      array of RuleUsage ruleUsage
--
--  # Obtain list of rules that became used since last call to this method (or since start of coverage
--  # instrumentation).
--  command takeCoverageDelta
--    returns
--      array of RuleUsage coverage
--      # Monotonically increasing time, in seconds.
--      number timestamp
--
--  # Enables/disables rendering of local CSS fonts (enabled by default).
--  experimental command setLocalFontsEnabled
--    parameters
--      # Whether rendering of local fonts is enabled.
--      boolean enabled
--
--  # Fires whenever a web font is updated.  A non-empty font parameter indicates a successfully loaded
--  # web font.
--  event fontsUpdated
--    parameters
--      # The web font that has loaded.
--      optional FontFace font
--
--  # Fires whenever a MediaQuery result changes (for example, after a browser window has been
--  # resized.) The current implementation considers only viewport-dependent media features.
--  event mediaQueryResultChanged
--
--  # Fired whenever an active document stylesheet is added.
--  event styleSheetAdded
--    parameters
--      # Added stylesheet metainfo.
--      CSSStyleSheetHeader header
--
--  # Fired whenever a stylesheet is changed as a result of the client operation.
--  event styleSheetChanged
--    parameters
--      StyleSheetId styleSheetId
--
--  # Fired whenever an active document stylesheet is removed.
--  event styleSheetRemoved
--    parameters
--      # Identifier of the removed stylesheet.
--      StyleSheetId styleSheetId
--
--  experimental event computedStyleUpdated
--    parameters
--      # The node id that has updated computed styles.
--      DOM.NodeId nodeId
--
--experimental domain CacheStorage
--  depends on Storage
--
--  # Unique identifier of the Cache object.
--  type CacheId extends string
--
--  # type of HTTP response cached
--  type CachedResponseType extends string
--    enum
--      basic
--      cors
--      default
--      error
--      opaqueResponse
--      opaqueRedirect
--
--  # Data entry.
--  type DataEntry extends object
--    properties
--      # Request URL.
--      string requestURL
--      # Request method.
--      string requestMethod
--      # Request headers
--      array of Header requestHeaders
--      # Number of seconds since epoch.
--      number responseTime
--      # HTTP response status code.
--      integer responseStatus
--      # HTTP response status text.
--      string responseStatusText
--      # HTTP response type
--      CachedResponseType responseType
--      # Response headers
--      array of Header responseHeaders
--
--  # Cache identifier.
--  type Cache extends object
--    properties
--      # An opaque unique id of the cache.
--      CacheId cacheId
--      # Security origin of the cache.
--      string securityOrigin
--      # Storage key of the cache.
--      string storageKey
--      # Storage bucket of the cache.
--      optional Storage.StorageBucket storageBucket
--      # The name of the cache.
--      string cacheName
--
--  type Header extends object
--    properties
--      string name
--      string value
--
--  # Cached response
--  type CachedResponse extends object
--    properties
--      # Entry content, base64-encoded.
--      binary body
--
--  # Deletes a cache.
--  command deleteCache
--    parameters
--      # Id of cache for deletion.
--      CacheId cacheId
--
--  # Deletes a cache entry.
--  command deleteEntry
--    parameters
--      # Id of cache where the entry will be deleted.
--      CacheId cacheId
--      # URL spec of the request.
--      string request
--
--  # Requests cache names.
--  command requestCacheNames
--    parameters
--      # At least and at most one of securityOrigin, storageKey, storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--    returns
--      # Caches for the security origin.
--      array of Cache caches
--
--  # Fetches cache entry.
--  command requestCachedResponse
--    parameters
--      # Id of cache that contains the entry.
--      CacheId cacheId
--      # URL spec of the request.
--      string requestURL
--      # headers of the request.
--      array of Header requestHeaders
--    returns
--      # Response read from the cache.
--      CachedResponse response
--
--  # Requests data from cache.
--  command requestEntries
--    parameters
--      # ID of cache to get entries from.
--      CacheId cacheId
--      # Number of records to skip.
--      optional integer skipCount
--      # Number of records to fetch.
--      optional integer pageSize
--      # If present, only return the entries containing this substring in the path
--      optional string pathFilter
--    returns
--      # Array of object store data entries.
--      array of DataEntry cacheDataEntries
--      # Count of returned entries from this storage. If pathFilter is empty, it
--      # is the count of all entries from this storage.
--      number returnCount
--
--# A domain for interacting with Cast, Presentation API, and Remote Playback API
--# functionalities.
--experimental domain Cast
--
--  type Sink extends object
--    properties
--      string name
--      string id
--      # Text describing the current session. Present only if there is an active
--      # session on the sink.
--      optional string session
--
--  # Starts observing for sinks that can be used for tab mirroring, and if set,
--  # sinks compatible with |presentationUrl| as well. When sinks are found, a
--  # |sinksUpdated| event is fired.
--  # Also starts observing for issue messages. When an issue is added or removed,
--  # an |issueUpdated| event is fired.
--  command enable
--    parameters
--      optional string presentationUrl
--
--  # Stops observing for sinks and issues.
--  command disable
--
--  # Sets a sink to be used when the web page requests the browser to choose a
--  # sink via Presentation API, Remote Playback API, or Cast SDK.
--  command setSinkToUse
--    parameters
--      string sinkName
--
--  # Starts mirroring the desktop to the sink.
--  command startDesktopMirroring
--    parameters
--      string sinkName
--
--  # Starts mirroring the tab to the sink.
--  command startTabMirroring
--    parameters
--      string sinkName
--
--  # Stops the active Cast session on the sink.
--  command stopCasting
--    parameters
--      string sinkName
--
--  # This is fired whenever the list of available sinks changes. A sink is a
--  # device or a software surface that you can cast to.
--  event sinksUpdated
--    parameters
--      array of Sink sinks
--
--  # This is fired whenever the outstanding issue/error message changes.
--  # |issueMessage| is empty if there is no issue.
--  event issueUpdated
--    parameters
--      string issueMessage
--
--
--# This domain exposes DOM read/write operations. Each DOM Node is represented with its mirror object
--# that has an `id`. This `id` can be used to get additional information on the Node, resolve it into
--# the JavaScript object wrapper, etc. It is important that client receives DOM events only for the
--# nodes that are known to the client. Backend keeps track of the nodes that were sent to the client
--# and never sends the same node twice. It is client's responsibility to collect information about
--# the nodes that were sent to the client. Note that `iframe` owner elements will return
--# corresponding document elements as their child nodes.
--domain DOM
--  depends on Runtime
--
--  # Unique DOM node identifier.
--  type NodeId extends integer
--
--  # Unique DOM node identifier used to reference a node that may not have been pushed to the
--  # front-end.
--  type BackendNodeId extends integer
--
--  # Backend node with a friendly name.
--  type BackendNode extends object
--    properties
--      # `Node`'s nodeType.
--      integer nodeType
--      # `Node`'s nodeName.
--      string nodeName
--      BackendNodeId backendNodeId
--
--  # Pseudo element type.
--  type PseudoType extends string
--    enum
--      first-line
--      first-letter
--      checkmark
--      before
--      after
--      picker-icon
--      interest-hint
--      marker
--      backdrop
--      column
--      selection
--      search-text
--      target-text
--      spelling-error
--      grammar-error
--      highlight
--      first-line-inherited
--      scroll-marker
--      scroll-marker-group
--      scroll-button
--      scrollbar
--      scrollbar-thumb
--      scrollbar-button
--      scrollbar-track
--      scrollbar-track-piece
--      scrollbar-corner
--      resizer
--      input-list-button
--      view-transition
--      view-transition-group
--      view-transition-image-pair
--      view-transition-group-children
--      view-transition-old
--      view-transition-new
--      placeholder
--      file-selector-button
--      details-content
--      picker
--      permission-icon
--
--  # Shadow root type.
--  type ShadowRootType extends string
--    enum
--      user-agent
--      open
--      closed
--
--  # Document compatibility mode.
--  type CompatibilityMode extends string
--    enum
--      QuirksMode
--      LimitedQuirksMode
--      NoQuirksMode
--
--  # ContainerSelector physical axes
--  type PhysicalAxes extends string
--    enum
--      Horizontal
--      Vertical
--      Both
--
--  # ContainerSelector logical axes
--  type LogicalAxes extends string
--    enum
--      Inline
--      Block
--      Both
--
--  # Physical scroll orientation
--  type ScrollOrientation extends string
--    enum
--      horizontal
--      vertical
--
--  # DOM interaction is implemented in terms of mirror objects that represent the actual DOM nodes.
--  # DOMNode is a base node mirror type.
--  type Node extends object
--    properties
--      # Node identifier that is passed into the rest of the DOM messages as the `nodeId`. Backend
--      # will only push node with given `id` once. It is aware of all requested nodes and will only
--      # fire DOM events for nodes known to the client.
--      NodeId nodeId
--      # The id of the parent node if any.
--      optional NodeId parentId
--      # The BackendNodeId for this node.
--      BackendNodeId backendNodeId
--      # `Node`'s nodeType.
--      integer nodeType
--      # `Node`'s nodeName.
--      string nodeName
--      # `Node`'s localName.
--      string localName
--      # `Node`'s nodeValue.
--      string nodeValue
--      # Child count for `Container` nodes.
--      optional integer childNodeCount
--      # Child nodes of this node when requested with children.
--      optional array of Node children
--      # Attributes of the `Element` node in the form of flat array `[name1, value1, name2, value2]`.
--      optional array of string attributes
--      # Document URL that `Document` or `FrameOwner` node points to.
--      optional string documentURL
--      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
--      optional string baseURL
--      # `DocumentType`'s publicId.
--      optional string publicId
--      # `DocumentType`'s systemId.
--      optional string systemId
--      # `DocumentType`'s internalSubset.
--      optional string internalSubset
--      # `Document`'s XML version in case of XML documents.
--      optional string xmlVersion
--      # `Attr`'s name.
--      optional string name
--      # `Attr`'s value.
--      optional string value
--      # Pseudo element type for this node.
--      optional PseudoType pseudoType
--      # Pseudo element identifier for this node. Only present if there is a
--      # valid pseudoType.
--      optional string pseudoIdentifier
--      # Shadow root type.
--      optional ShadowRootType shadowRootType
--      # Frame ID for frame owner elements.
--      optional Page.FrameId frameId
--      # Content document for frame owner elements.
--      optional Node contentDocument
--      # Shadow root list for given element host.
--      optional array of Node shadowRoots
--      # Content document fragment for template elements.
--      optional Node templateContent
--      # Pseudo elements associated with this node.
--      optional array of Node pseudoElements
--      # Deprecated, as the HTML Imports API has been removed (crbug.com/937746).
--      # This property used to return the imported document for the HTMLImport links.
--      # The property is always undefined now.
--      deprecated optional Node importedDocument
--      # Distributed nodes for given insertion point.
--      optional array of BackendNode distributedNodes
--      # Whether the node is SVG.
--      optional boolean isSVG
--      optional CompatibilityMode compatibilityMode
--      optional BackendNode assignedSlot
--      experimental optional boolean isScrollable
--
--  # A structure to hold the top-level node of a detached tree and an array of its retained descendants.
--  type DetachedElementInfo extends object
--    properties
--      Node treeNode
--      array of NodeId retainedNodeIds
--
--  # A structure holding an RGBA color.
--  type RGBA extends object
--    properties
--      # The red component, in the [0-255] range.
--      integer r
--      # The green component, in the [0-255] range.
--      integer g
--      # The blue component, in the [0-255] range.
--      integer b
--      # The alpha component, in the [0-1] range (default: 1).
--      optional number a
--
--  # An array of quad vertices, x immediately followed by y for each point, points clock-wise.
--  type Quad extends array of number
--
--  # Box model.
--  type BoxModel extends object
--    properties
--      # Content box
--      Quad content
--      # Padding box
--      Quad padding
--      # Border box
--      Quad border
--      # Margin box
--      Quad margin
--      # Node width
--      integer width
--      # Node height
--      integer height
--      # Shape outside coordinates
--      optional ShapeOutsideInfo shapeOutside
--
--  # CSS Shape Outside details.
--  type ShapeOutsideInfo extends object
--    properties
--      # Shape bounds
--      Quad bounds
--      # Shape coordinate details
--      array of any shape
--      # Margin shape bounds
--      array of any marginShape
--
--  # Rectangle.
--  type Rect extends object
--    properties
--      # X coordinate
--      number x
--      # Y coordinate
--      number y
--      # Rectangle width
--      number width
--      # Rectangle height
--      number height
--
--  type CSSComputedStyleProperty extends object
--    properties
--      # Computed style property name.
--      string name
--      # Computed style property value.
--      string value
--
--  # Collects class names for the node with given id and all of it's child nodes.
--  experimental command collectClassNamesFromSubtree
--    parameters
--      # Id of the node to collect class names.
--      NodeId nodeId
--    returns
--      # Class name list.
--      array of string classNames
--
--  # Creates a deep copy of the specified node and places it into the target container before the
--  # given anchor.
--  experimental command copyTo
--    parameters
--      # Id of the node to copy.
--      NodeId nodeId
--      # Id of the element to drop the copy into.
--      NodeId targetNodeId
--      # Drop the copy before this node (if absent, the copy becomes the last child of
--      # `targetNodeId`).
--      optional NodeId insertBeforeNodeId
--    returns
--      # Id of the node clone.
--      NodeId nodeId
--
--  # Describes node given its id, does not require domain to be enabled. Does not start tracking any
--  # objects, can be used for automation.
--  command describeNode
--    parameters
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
--      # entire subtree or provide an integer larger than 0.
--      optional integer depth
--      # Whether or not iframes and shadow roots should be traversed when returning the subtree
--      # (default is false).
--      optional boolean pierce
--    returns
--      # Node description.
--      Node node
--
--  # Scrolls the specified rect of the given node into view if not already visible.
--  # Note: exactly one between nodeId, backendNodeId and objectId should be passed
--  # to identify the node.
--  command scrollIntoViewIfNeeded
--    parameters
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--      # The rect to be scrolled into view, relative to the node's border box, in CSS pixels.
--      # When omitted, center of the node will be used, similar to Element.scrollIntoView.
--      optional Rect rect
--
--  # Disables DOM agent for the given page.
--  command disable
--
--  # Discards search results from the session with the given id. `getSearchResults` should no longer
--  # be called for that search.
--  experimental command discardSearchResults
--    parameters
--      # Unique search session identifier.
--      string searchId
--
--  # Enables DOM agent for the given page.
--  command enable
--    parameters
--      # Whether to include whitespaces in the children array of returned Nodes.
--      experimental optional enum includeWhitespace
--        # Strip whitespaces from child arrays (default).
--        none
--        # Return all children including block-level whitespace nodes.
--        all
--
--  # Focuses the given element.
--  command focus
--    parameters
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--
--  # Returns attributes for the specified node.
--  command getAttributes
--    parameters
--      # Id of the node to retrieve attributes for.
--      NodeId nodeId
--    returns
--      # An interleaved array of node attribute names and values.
--      array of string attributes
--
--  # Returns boxes for the given node.
--  command getBoxModel
--    parameters
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--    returns
--      # Box model for the node.
--      BoxModel model
--
--  # Returns quads that describe node position on the page. This method
--  # might return multiple quads for inline nodes.
--  experimental command getContentQuads
--    parameters
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--    returns
--      # Quads that describe node layout relative to viewport.
--      array of Quad quads
--
--  # Returns the root DOM node (and optionally the subtree) to the caller.
--  # Implicitly enables the DOM domain events for the current target.
--  command getDocument
--    parameters
--      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
--      # entire subtree or provide an integer larger than 0.
--      optional integer depth
--      # Whether or not iframes and shadow roots should be traversed when returning the subtree
--      # (default is false).
--      optional boolean pierce
--    returns
--      # Resulting node.
--      Node root
--
--  # Returns the root DOM node (and optionally the subtree) to the caller.
--  # Deprecated, as it is not designed to work well with the rest of the DOM agent.
--  # Use DOMSnapshot.captureSnapshot instead.
--  deprecated command getFlattenedDocument
--    parameters
--      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
--      # entire subtree or provide an integer larger than 0.
--      optional integer depth
--      # Whether or not iframes and shadow roots should be traversed when returning the subtree
--      # (default is false).
--      optional boolean pierce
--    returns
--      # Resulting node.
--      array of Node nodes
--
--  # Finds nodes with a given computed style in a subtree.
--  experimental command getNodesForSubtreeByStyle
--    parameters
--      # Node ID pointing to the root of a subtree.
--      NodeId nodeId
--      # The style to filter nodes by (includes nodes if any of properties matches).
--      array of CSSComputedStyleProperty computedStyles
--      # Whether or not iframes and shadow roots in the same target should be traversed when returning the
--      # results (default is false).
--      optional boolean pierce
--    returns
--      # Resulting nodes.
--      array of NodeId nodeIds
--
--  # Returns node id at given location. Depending on whether DOM domain is enabled, nodeId is
--  # either returned or not.
--  command getNodeForLocation
--    parameters
--      # X coordinate.
--      integer x
--      # Y coordinate.
--      integer y
--      # False to skip to the nearest non-UA shadow root ancestor (default: false).
--      optional boolean includeUserAgentShadowDOM
--      # Whether to ignore pointer-events: none on elements and hit test them.
--      optional boolean ignorePointerEventsNone
--    returns
--      # Resulting node.
--      BackendNodeId backendNodeId
--      # Frame this node belongs to.
--      Page.FrameId frameId
--      # Id of the node at given coordinates, only when enabled and requested document.
--      optional NodeId nodeId
--
--  # Returns node's HTML markup.
--  command getOuterHTML
--    parameters
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--      # Include all shadow roots. Equals to false if not specified.
--      experimental optional boolean includeShadowDOM
--    returns
--      # Outer HTML markup.
--      string outerHTML
--
--  # Returns the id of the nearest ancestor that is a relayout boundary.
--  experimental command getRelayoutBoundary
--    parameters
--      # Id of the node.
--      NodeId nodeId
--    returns
--      # Relayout boundary node id for the given node.
--      NodeId nodeId
--
--  # Returns search results from given `fromIndex` to given `toIndex` from the search with the given
--  # identifier.
--  experimental command getSearchResults
--    parameters
--      # Unique search session identifier.
--      string searchId
--      # Start index of the search result to be returned.
--      integer fromIndex
--      # End index of the search result to be returned.
--      integer toIndex
--    returns
--      # Ids of the search result nodes.
--      array of NodeId nodeIds
--
--  # Hides any highlight.
--  command hideHighlight
--    # Use 'Overlay.hideHighlight' instead
--    redirect Overlay
--
--  # Highlights DOM node.
--  command highlightNode
--    # Use 'Overlay.highlightNode' instead
--    redirect Overlay
--
--  # Highlights given rectangle.
--  command highlightRect
--    # Use 'Overlay.highlightRect' instead
--    redirect Overlay
--
--  # Marks last undoable state.
--  experimental command markUndoableState
--
--  # Moves node into the new container, places it before the given anchor.
--  command moveTo
--    parameters
--      # Id of the node to move.
--      NodeId nodeId
--      # Id of the element to drop the moved node into.
--      NodeId targetNodeId
--      # Drop node before this one (if absent, the moved node becomes the last child of
--      # `targetNodeId`).
--      optional NodeId insertBeforeNodeId
--    returns
--      # New id of the moved node.
--      NodeId nodeId
--
--  # Searches for a given string in the DOM tree. Use `getSearchResults` to access search results or
--  # `cancelSearch` to end this search session.
--  experimental command performSearch
--    parameters
--      # Plain text or query selector or XPath search query.
--      string query
--      # True to search in user agent shadow DOM.
--      optional boolean includeUserAgentShadowDOM
--    returns
--      # Unique search session identifier.
--      string searchId
--      # Number of search results.
--      integer resultCount
--
--  # Requests that the node is sent to the caller given its path. // FIXME, use XPath
--  experimental command pushNodeByPathToFrontend
--    parameters
--      # Path to node in the proprietary format.
--      string path
--    returns
--      # Id of the node for given path.
--      NodeId nodeId
--
--  # Requests that a batch of nodes is sent to the caller given their backend node ids.
--  experimental command pushNodesByBackendIdsToFrontend
--    parameters
--      # The array of backend node ids.
--      array of BackendNodeId backendNodeIds
--    returns
--      # The array of ids of pushed nodes that correspond to the backend ids specified in
--      # backendNodeIds.
--      array of NodeId nodeIds
--
--  # Executes `querySelector` on a given node.
--  command querySelector
--    parameters
--      # Id of the node to query upon.
--      NodeId nodeId
--      # Selector string.
--      string selector
--    returns
--      # Query selector result.
--      NodeId nodeId
--
--  # Executes `querySelectorAll` on a given node.
--  command querySelectorAll
--    parameters
--      # Id of the node to query upon.
--      NodeId nodeId
--      # Selector string.
--      string selector
--    returns
--      # Query selector result.
--      array of NodeId nodeIds
--
--  # Returns NodeIds of current top layer elements.
--  # Top layer is rendered closest to the user within a viewport, therefore its elements always
--  # appear on top of all other content.
--  experimental command getTopLayerElements
--    returns
--      # NodeIds of top layer elements
--      array of NodeId nodeIds
--
--  # Returns the NodeId of the matched element according to certain relations.
--  experimental command getElementByRelation
--    parameters
--      # Id of the node from which to query the relation.
--      NodeId nodeId
--      # Type of relation to get.
--      enum relation
--        # Get the popover target for a given element. In this case, this given
--        # element can only be an HTMLFormControlElement (<input>, <button>).
--        PopoverTarget
--        # Get the interestfor target (the attribute used to be named
--        # `interesttarget`) for for a given element.
--        InterestTarget
--        # Get the commandfor target for a given element. In this case, this given
--        # element can only be an HTMLButtonElement.
--        CommandFor
--    returns
--      # NodeId of the element matching the queried relation.
--      NodeId nodeId
--
--  # Re-does the last undone action.
--  experimental command redo
--
--  # Removes attribute with given name from an element with given id.
--  command removeAttribute
--    parameters
--      # Id of the element to remove attribute from.
--      NodeId nodeId
--      # Name of the attribute to remove.
--      string name
--
--  # Removes node with given id.
--  command removeNode
--    parameters
--      # Id of the node to remove.
--      NodeId nodeId
--
--  # Requests that children of the node with given id are returned to the caller in form of
--  # `setChildNodes` events where not only immediate children are retrieved, but all children down to
--  # the specified depth.
--  command requestChildNodes
--    parameters
--      # Id of the node to get children for.
--      NodeId nodeId
--      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
--      # entire subtree or provide an integer larger than 0.
--      optional integer depth
--      # Whether or not iframes and shadow roots should be traversed when returning the sub-tree
--      # (default is false).
--      optional boolean pierce
--
--  # Requests that the node is sent to the caller given the JavaScript node object reference. All
--  # nodes that form the path from the node to the root are also sent to the client as a series of
--  # `setChildNodes` notifications.
--  command requestNode
--    parameters
--      # JavaScript object id to convert into node.
--      Runtime.RemoteObjectId objectId
--    returns
--      # Node id for given object.
--      NodeId nodeId
--
--  # Resolves the JavaScript node object for a given NodeId or BackendNodeId.
--  command resolveNode
--    parameters
--      # Id of the node to resolve.
--      optional NodeId nodeId
--      # Backend identifier of the node to resolve.
--      optional DOM.BackendNodeId backendNodeId
--      # Symbolic group name that can be used to release multiple objects.
--      optional string objectGroup
--      # Execution context in which to resolve the node.
--      optional Runtime.ExecutionContextId executionContextId
--    returns
--      # JavaScript object wrapper for given node.
--      Runtime.RemoteObject object
--
--  # Sets attribute for an element with given id.
--  command setAttributeValue
--    parameters
--      # Id of the element to set attribute for.
--      NodeId nodeId
--      # Attribute name.
--      string name
--      # Attribute value.
--      string value
--
--  # Sets attributes on element with given id. This method is useful when user edits some existing
--  # attribute value and types in several attribute name/value pairs.
--  command setAttributesAsText
--    parameters
--      # Id of the element to set attributes for.
--      NodeId nodeId
--      # Text with a number of attributes. Will parse this text using HTML parser.
--      string text
--      # Attribute name to replace with new attributes derived from text in case text parsed
--      # successfully.
--      optional string name
--
--  # Sets files for the given file input element.
--  command setFileInputFiles
--    parameters
--      # Array of file paths to set.
--      array of string files
--      # Identifier of the node.
--      optional NodeId nodeId
--      # Identifier of the backend node.
--      optional BackendNodeId backendNodeId
--      # JavaScript object id of the node wrapper.
--      optional Runtime.RemoteObjectId objectId
--
--  # Sets if stack traces should be captured for Nodes. See `Node.getNodeStackTraces`. Default is disabled.
--  experimental command setNodeStackTracesEnabled
--    parameters
--      # Enable or disable.
--      boolean enable
--
--  # Gets stack traces associated with a Node. As of now, only provides stack trace for Node creation.
--  experimental command getNodeStackTraces
--    parameters
--      # Id of the node to get stack traces for.
--      NodeId nodeId
--    returns
--      # Creation stack trace, if available.
--      optional Runtime.StackTrace creation
--
--  # Returns file information for the given
--  # File wrapper.
--  experimental command getFileInfo
--    parameters
--      # JavaScript object id of the node wrapper.
--      Runtime.RemoteObjectId objectId
--    returns
--      string path
--
--  # Returns list of detached nodes
--  experimental command getDetachedDomNodes
--    returns
--      # The list of detached nodes
--      array of DetachedElementInfo detachedNodes
--
--  # Enables console to refer to the node with given id via $x (see Command Line API for more details
--  # $x functions).
--  experimental command setInspectedNode
--    parameters
--      # DOM node id to be accessible by means of $x command line API.
--      NodeId nodeId
--
--  # Sets node name for a node with given id.
--  command setNodeName
--    parameters
--      # Id of the node to set name for.
--      NodeId nodeId
--      # New node's name.
--      string name
--    returns
--      # New node's id.
--      NodeId nodeId
--
--  # Sets node value for a node with given id.
--  command setNodeValue
--    parameters
--      # Id of the node to set value for.
--      NodeId nodeId
--      # New node's value.
--      string value
--
--  # Sets node HTML markup, returns new node id.
--  command setOuterHTML
--    parameters
--      # Id of the node to set markup for.
--      NodeId nodeId
--      # Outer HTML markup to set.
--      string outerHTML
--
--  # Undoes the last performed action.
--  experimental command undo
--
--  # Returns iframe node that owns iframe with the given domain.
--  experimental command getFrameOwner
--    parameters
--      Page.FrameId frameId
--    returns
--      # Resulting node.
--      BackendNodeId backendNodeId
--      # Id of the node at given coordinates, only when enabled and requested document.
--      optional NodeId nodeId
--
--  # Returns the query container of the given node based on container query
--  # conditions: containerName, physical and logical axes, and whether it queries
--  # scroll-state or anchored elements. If no axes are provided and
--  # queriesScrollState is false, the style container is returned, which is the
--  # direct parent or the closest element with a matching container-name.
--  experimental command getContainerForNode
--    parameters
--      NodeId nodeId
--      optional string containerName
--      optional PhysicalAxes physicalAxes
--      optional LogicalAxes logicalAxes
--      optional boolean queriesScrollState
--      optional boolean queriesAnchored
--    returns
--      # The container node for the given node, or null if not found.
--      optional NodeId nodeId
--
--  # Returns the descendants of a container query container that have
--  # container queries against this container.
--  experimental command getQueryingDescendantsForContainer
--    parameters
--      # Id of the container node to find querying descendants from.
--      NodeId nodeId
--    returns
--      # Descendant nodes with container queries against the given container.
--      array of NodeId nodeIds
--
--  # Returns the target anchor element of the given anchor query according to
--  # https://www.w3.org/TR/css-anchor-position-1/#target.
--  experimental command getAnchorElement
--    parameters
--      # Id of the positioned element from which to find the anchor.
--      NodeId nodeId
--      # An optional anchor specifier, as defined in
--      # https://www.w3.org/TR/css-anchor-position-1/#anchor-specifier.
--      # If not provided, it will return the implicit anchor element for
--      # the given positioned element.
--      optional string anchorSpecifier
--    returns
--      # The anchor element of the given anchor query.
--      NodeId nodeId
--
--  # When enabling, this API force-opens the popover identified by nodeId
--  # and keeps it open until disabled.
--  experimental command forceShowPopover
--    parameters
--      # Id of the popover HTMLElement
--      NodeId nodeId
--      # If true, opens the popover and keeps it open. If false, closes the
--      # popover if it was previously force-opened.
--      boolean enable
--    returns
--      # List of popovers that were closed in order to respect popover stacking order.
--      array of NodeId nodeIds
--
--  # Fired when `Element`'s attribute is modified.
--  event attributeModified
--    parameters
--      # Id of the node that has changed.
--      NodeId nodeId
--      # Attribute name.
--      string name
--      # Attribute value.
--      string value
--
--  # Fired when `Element`'s attribute is removed.
--  event attributeRemoved
--    parameters
--      # Id of the node that has changed.
--      NodeId nodeId
--      # A ttribute name.
--      string name
--
--  # Mirrors `DOMCharacterDataModified` event.
--  event characterDataModified
--    parameters
--      # Id of the node that has changed.
--      NodeId nodeId
--      # New text value.
--      string characterData
--
--  # Fired when `Container`'s child node count has changed.
--  event childNodeCountUpdated
--    parameters
--      # Id of the node that has changed.
--      NodeId nodeId
--      # New node count.
--      integer childNodeCount
--
--  # Mirrors `DOMNodeInserted` event.
--  event childNodeInserted
--    parameters
--      # Id of the node that has changed.
--      NodeId parentNodeId
--      # Id of the previous sibling.
--      NodeId previousNodeId
--      # Inserted node data.
--      Node node
--
--  # Mirrors `DOMNodeRemoved` event.
--  event childNodeRemoved
--    parameters
--      # Parent id.
--      NodeId parentNodeId
--      # Id of the node that has been removed.
--      NodeId nodeId
--
--  # Called when distribution is changed.
--  experimental event distributedNodesUpdated
--    parameters
--      # Insertion point where distributed nodes were updated.
--      NodeId insertionPointId
--      # Distributed nodes for given insertion point.
--      array of BackendNode distributedNodes
--
--  # Fired when `Document` has been totally updated. Node ids are no longer valid.
--  event documentUpdated
--
--  # Fired when `Element`'s inline style is modified via a CSS property modification.
--  experimental event inlineStyleInvalidated
--    parameters
--      # Ids of the nodes for which the inline styles have been invalidated.
--      array of NodeId nodeIds
--
--  # Called when a pseudo element is added to an element.
--  experimental event pseudoElementAdded
--    parameters
--      # Pseudo element's parent element id.
--      NodeId parentId
--      # The added pseudo element.
--      Node pseudoElement
--
--  # Called when top layer elements are changed.
--  experimental event topLayerElementsUpdated
--
--  # Fired when a node's scrollability state changes.
--  experimental event scrollableFlagUpdated
--    parameters
--      # The id of the node.
--      DOM.NodeId nodeId
--      # If the node is scrollable.
--      boolean isScrollable
--
--  # Called when a pseudo element is removed from an element.
--  experimental event pseudoElementRemoved
--    parameters
--      # Pseudo element's parent element id.
--      NodeId parentId
--      # The removed pseudo element id.
--      NodeId pseudoElementId
--
--  # Fired when backend wants to provide client with the missing DOM structure. This happens upon
--  # most of the calls requesting node ids.
--  event setChildNodes
--    parameters
--      # Parent node id to populate with children.
--      NodeId parentId
--      # Child nodes array.
--      array of Node nodes
--
--  # Called when shadow root is popped from the element.
--  experimental event shadowRootPopped
--    parameters
--      # Host element id.
--      NodeId hostId
--      # Shadow root id.
--      NodeId rootId
--
--  # Called when shadow root is pushed into the element.
--  experimental event shadowRootPushed
--    parameters
--      # Host element id.
--      NodeId hostId
--      # Shadow root.
--      Node root
--
--# DOM debugging allows setting breakpoints on particular DOM operations and events. JavaScript
--# execution will stop on these operations as if there was a regular breakpoint set.
--domain DOMDebugger
--  depends on DOM
--  depends on Runtime
--
--  # DOM breakpoint type.
--  type DOMBreakpointType extends string
--    enum
--      subtree-modified
--      attribute-modified
--      node-removed
--
--  # CSP Violation type.
--  experimental type CSPViolationType extends string
--    enum
--      trustedtype-sink-violation
--      trustedtype-policy-violation
--
--  # Object event listener.
--  type EventListener extends object
--    properties
--      # `EventListener`'s type.
--      string type
--      # `EventListener`'s useCapture.
--      boolean useCapture
--      # `EventListener`'s passive flag.
--      boolean passive
--      # `EventListener`'s once flag.
--      boolean once
--      # Script id of the handler code.
--      Runtime.ScriptId scriptId
--      # Line number in the script (0-based).
--      integer lineNumber
--      # Column number in the script (0-based).
--      integer columnNumber
--      # Event handler function value.
--      optional Runtime.RemoteObject handler
--      # Event original handler function value.
--      optional Runtime.RemoteObject originalHandler
--      # Node the listener is added to (if any).
--      optional DOM.BackendNodeId backendNodeId
--
--  # Returns event listeners of the given object.
--  command getEventListeners
--    parameters
--      # Identifier of the object to return listeners for.
--      Runtime.RemoteObjectId objectId
--      # The maximum depth at which Node children should be retrieved, defaults to 1. Use -1 for the
--      # entire subtree or provide an integer larger than 0.
--      optional integer depth
--      # Whether or not iframes and shadow roots should be traversed when returning the subtree
--      # (default is false). Reports listeners for all contexts if pierce is enabled.
--      optional boolean pierce
--    returns
--      # Array of relevant listeners.
--      array of EventListener listeners
--
--  # Removes DOM breakpoint that was set using `setDOMBreakpoint`.
--  command removeDOMBreakpoint
--    parameters
--      # Identifier of the node to remove breakpoint from.
--      DOM.NodeId nodeId
--      # Type of the breakpoint to remove.
--      DOMBreakpointType type
--
--  # Removes breakpoint on particular DOM event.
--  command removeEventListenerBreakpoint
--    parameters
--      # Event name.
--      string eventName
--      # EventTarget interface name.
--      experimental optional string targetName
--
--  # Removes breakpoint on particular native event.
--  experimental deprecated command removeInstrumentationBreakpoint
--    redirect EventBreakpoints
--    parameters
--      # Instrumentation name to stop on.
--      string eventName
--
--  # Removes breakpoint from XMLHttpRequest.
--  command removeXHRBreakpoint
--    parameters
--      # Resource URL substring.
--      string url
--
--  # Sets breakpoint on particular CSP violations.
--  experimental command setBreakOnCSPViolation
--    parameters
--      # CSP Violations to stop upon.
--      array of CSPViolationType violationTypes
--
--  # Sets breakpoint on particular operation with DOM.
--  command setDOMBreakpoint
--    parameters
--      # Identifier of the node to set breakpoint on.
--      DOM.NodeId nodeId
--      # Type of the operation to stop upon.
--      DOMBreakpointType type
--
--  # Sets breakpoint on particular DOM event.
--  command setEventListenerBreakpoint
--    parameters
--      # DOM Event name to stop on (any DOM event will do).
--      string eventName
--      # EventTarget interface name to stop on. If equal to `"*"` or not provided, will stop on any
--      # EventTarget.
--      experimental optional string targetName
--
--  # Sets breakpoint on particular native event.
--  experimental deprecated command setInstrumentationBreakpoint
--    redirect EventBreakpoints
--    parameters
--      # Instrumentation name to stop on.
--      string eventName
--
--  # Sets breakpoint on XMLHttpRequest.
--  command setXHRBreakpoint
--    parameters
--      # Resource URL substring. All XHRs having this substring in the URL will get stopped upon.
--      string url
--
--# EventBreakpoints permits setting JavaScript breakpoints on operations and events
--# occurring in native code invoked from JavaScript. Once breakpoint is hit, it is
--# reported through Debugger domain, similarly to regular breakpoints being hit.
--experimental domain EventBreakpoints
--  # Sets breakpoint on particular native event.
--  command setInstrumentationBreakpoint
--    parameters
--      # Instrumentation name to stop on.
--      string eventName
--
--  # Removes breakpoint on particular native event.
--  command removeInstrumentationBreakpoint
--    parameters
--      # Instrumentation name to stop on.
--      string eventName
--
--  # Removes all breakpoints
--  command disable
--
--# This domain facilitates obtaining document snapshots with DOM, layout, and style information.
--experimental domain DOMSnapshot
--  depends on CSS
--  depends on DOM
--  depends on DOMDebugger
--  depends on Page
--
--  # A Node in the DOM tree.
--  type DOMNode extends object
--    properties
--      # `Node`'s nodeType.
--      integer nodeType
--      # `Node`'s nodeName.
--      string nodeName
--      # `Node`'s nodeValue.
--      string nodeValue
--      # Only set for textarea elements, contains the text value.
--      optional string textValue
--      # Only set for input elements, contains the input's associated text value.
--      optional string inputValue
--      # Only set for radio and checkbox input elements, indicates if the element has been checked
--      optional boolean inputChecked
--      # Only set for option elements, indicates if the element has been selected
--      optional boolean optionSelected
--      # `Node`'s id, corresponds to DOM.Node.backendNodeId.
--      DOM.BackendNodeId backendNodeId
--      # The indexes of the node's child nodes in the `domNodes` array returned by `getSnapshot`, if
--      # any.
--      optional array of integer childNodeIndexes
--      # Attributes of an `Element` node.
--      optional array of NameValue attributes
--      # Indexes of pseudo elements associated with this node in the `domNodes` array returned by
--      # `getSnapshot`, if any.
--      optional array of integer pseudoElementIndexes
--      # The index of the node's related layout tree node in the `layoutTreeNodes` array returned by
--      # `getSnapshot`, if any.
--      optional integer layoutNodeIndex
--      # Document URL that `Document` or `FrameOwner` node points to.
--      optional string documentURL
--      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
--      optional string baseURL
--      # Only set for documents, contains the document's content language.
--      optional string contentLanguage
--      # Only set for documents, contains the document's character set encoding.
--      optional string documentEncoding
--      # `DocumentType` node's publicId.
--      optional string publicId
--      # `DocumentType` node's systemId.
--      optional string systemId
--      # Frame ID for frame owner elements and also for the document node.
--      optional Page.FrameId frameId
--      # The index of a frame owner element's content document in the `domNodes` array returned by
--      # `getSnapshot`, if any.
--      optional integer contentDocumentIndex
--      # Type of a pseudo element node.
--      optional DOM.PseudoType pseudoType
--      # Shadow root type.
--      optional DOM.ShadowRootType shadowRootType
--      # Whether this DOM node responds to mouse clicks. This includes nodes that have had click
--      # event listeners attached via JavaScript as well as anchor tags that naturally navigate when
--      # clicked.
--      optional boolean isClickable
--      # Details of the node's event listeners, if any.
--      optional array of DOMDebugger.EventListener eventListeners
--      # The selected url for nodes with a srcset attribute.
--      optional string currentSourceURL
--      # The url of the script (if any) that generates this node.
--      optional string originURL
--      # Scroll offsets, set when this node is a Document.
--      optional number scrollOffsetX
--      optional number scrollOffsetY
--
--  # Details of post layout rendered text positions. The exact layout should not be regarded as
--  # stable and may change between versions.
--  type InlineTextBox extends object
--    properties
--      # The bounding box in document coordinates. Note that scroll offset of the document is ignored.
--      DOM.Rect boundingBox
--      # The starting index in characters, for this post layout textbox substring. Characters that
--      # would be represented as a surrogate pair in UTF-16 have length 2.
--      integer startCharacterIndex
--      # The number of characters in this post layout textbox substring. Characters that would be
--      # represented as a surrogate pair in UTF-16 have length 2.
--      integer numCharacters
--
--  # Details of an element in the DOM tree with a LayoutObject.
--  type LayoutTreeNode extends object
--    properties
--      # The index of the related DOM node in the `domNodes` array returned by `getSnapshot`.
--      integer domNodeIndex
--      # The bounding box in document coordinates. Note that scroll offset of the document is ignored.
--      DOM.Rect boundingBox
--      # Contents of the LayoutText, if any.
--      optional string layoutText
--      # The post-layout inline text nodes, if any.
--      optional array of InlineTextBox inlineTextNodes
--      # Index into the `computedStyles` array returned by `getSnapshot`.
--      optional integer styleIndex
--      # Global paint order index, which is determined by the stacking order of the nodes. Nodes
--      # that are painted together will have the same index. Only provided if includePaintOrder in
--      # getSnapshot was true.
--      optional integer paintOrder
--      # Set to true to indicate the element begins a new stacking context.
--      optional boolean isStackingContext
--
--  # A subset of the full ComputedStyle as defined by the request whitelist.
--  type ComputedStyle extends object
--    properties
--      # Name/value pairs of computed style properties.
--      array of NameValue properties
--
--  # A name/value pair.
--  type NameValue extends object
--    properties
--      # Attribute/property name.
--      string name
--      # Attribute/property value.
--      string value
--
--  # Index of the string in the strings table.
--  type StringIndex extends integer
--
--  # Index of the string in the strings table.
--  type ArrayOfStrings extends array of StringIndex
--
--  # Data that is only present on rare nodes.
--  type RareStringData extends object
--    properties
--      array of integer index
--      array of StringIndex value
--
--  type RareBooleanData extends object
--    properties
--      array of integer index
--
--  type RareIntegerData extends object
--    properties
--      array of integer index
--      array of integer value
--
--  type Rectangle extends array of number
--
--  # Document snapshot.
--  type DocumentSnapshot extends object
--    properties
--      # Document URL that `Document` or `FrameOwner` node points to.
--      StringIndex documentURL
--      # Document title.
--      StringIndex title
--      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
--      StringIndex baseURL
--      # Contains the document's content language.
--      StringIndex contentLanguage
--      # Contains the document's character set encoding.
--      StringIndex encodingName
--      # `DocumentType` node's publicId.
--      StringIndex publicId
--      # `DocumentType` node's systemId.
--      StringIndex systemId
--      # Frame ID for frame owner elements and also for the document node.
--      StringIndex frameId
--      # A table with dom nodes.
--      NodeTreeSnapshot nodes
--      # The nodes in the layout tree.
--      LayoutTreeSnapshot layout
--      # The post-layout inline text nodes.
--      TextBoxSnapshot textBoxes
--      # Horizontal scroll offset.
--      optional number scrollOffsetX
--      # Vertical scroll offset.
--      optional number scrollOffsetY
--      # Document content width.
--      optional number contentWidth
--      # Document content height.
--      optional number contentHeight
--
--  # Table containing nodes.
--  type NodeTreeSnapshot extends object
--    properties
--      # Parent node index.
--      optional array of integer parentIndex
--      # `Node`'s nodeType.
--      optional array of integer nodeType
--      # Type of the shadow root the `Node` is in. String values are equal to the `ShadowRootType` enum.
--      optional RareStringData shadowRootType
--      # `Node`'s nodeName.
--      optional array of StringIndex nodeName
--      # `Node`'s nodeValue.
--      optional array of StringIndex nodeValue
--      # `Node`'s id, corresponds to DOM.Node.backendNodeId.
--      optional array of DOM.BackendNodeId backendNodeId
--      # Attributes of an `Element` node. Flatten name, value pairs.
--      optional array of ArrayOfStrings attributes
--      # Only set for textarea elements, contains the text value.
--      optional RareStringData textValue
--      # Only set for input elements, contains the input's associated text value.
--      optional RareStringData inputValue
--      # Only set for radio and checkbox input elements, indicates if the element has been checked
--      optional RareBooleanData inputChecked
--      # Only set for option elements, indicates if the element has been selected
--      optional RareBooleanData optionSelected
--      # The index of the document in the list of the snapshot documents.
--      optional RareIntegerData contentDocumentIndex
--      # Type of a pseudo element node.
--      optional RareStringData pseudoType
--      # Pseudo element identifier for this node. Only present if there is a
--      # valid pseudoType.
--      optional RareStringData pseudoIdentifier
--      # Whether this DOM node responds to mouse clicks. This includes nodes that have had click
--      # event listeners attached via JavaScript as well as anchor tags that naturally navigate when
--      # clicked.
--      optional RareBooleanData isClickable
--      # The selected url for nodes with a srcset attribute.
--      optional RareStringData currentSourceURL
--      # The url of the script (if any) that generates this node.
--      optional RareStringData originURL
--
--  # Table of details of an element in the DOM tree with a LayoutObject.
--  type LayoutTreeSnapshot extends object
--    properties
--      # Index of the corresponding node in the `NodeTreeSnapshot` array returned by `captureSnapshot`.
--      array of integer nodeIndex
--      # Array of indexes specifying computed style strings, filtered according to the `computedStyles` parameter passed to `captureSnapshot`.
--      array of ArrayOfStrings styles
--      # The absolute position bounding box.
--      array of Rectangle bounds
--      # Contents of the LayoutText, if any.
--      array of StringIndex text
--      # Stacking context information.
--      RareBooleanData stackingContexts
--      # Global paint order index, which is determined by the stacking order of the nodes. Nodes
--      # that are painted together will have the same index. Only provided if includePaintOrder in
--      # captureSnapshot was true.
--      optional array of integer paintOrders
--      # The offset rect of nodes. Only available when includeDOMRects is set to true
--      optional array of Rectangle offsetRects
--      # The scroll rect of nodes. Only available when includeDOMRects is set to true
--      optional array of Rectangle scrollRects
--      # The client rect of nodes. Only available when includeDOMRects is set to true
--      optional array of Rectangle clientRects
--      # The list of background colors that are blended with colors of overlapping elements.
--      experimental optional array of StringIndex blendedBackgroundColors
--      # The list of computed text opacities.
--      experimental optional array of number textColorOpacities
--
--  # Table of details of the post layout rendered text positions. The exact layout should not be regarded as
--  # stable and may change between versions.
--  type TextBoxSnapshot extends object
--    properties
--      # Index of the layout tree node that owns this box collection.
--      array of integer layoutIndex
--      # The absolute position bounding box.
--      array of Rectangle bounds
--      # The starting index in characters, for this post layout textbox substring. Characters that
--      # would be represented as a surrogate pair in UTF-16 have length 2.
--      array of integer start
--      # The number of characters in this post layout textbox substring. Characters that would be
--      # represented as a surrogate pair in UTF-16 have length 2.
--      array of integer length
--
--  # Disables DOM snapshot agent for the given page.
--  command disable
--
--  # Enables DOM snapshot agent for the given page.
--  command enable
--
--  # Returns a document snapshot, including the full DOM tree of the root node (including iframes,
--  # template contents, and imported documents) in a flattened array, as well as layout and
--  # white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
--  # flattened.
--  deprecated command getSnapshot
--    parameters
--      # Whitelist of computed styles to return.
--      array of string computedStyleWhitelist
--      # Whether or not to retrieve details of DOM listeners (default false).
--      optional boolean includeEventListeners
--      # Whether to determine and include the paint order index of LayoutTreeNodes (default false).
--      optional boolean includePaintOrder
--      # Whether to include UA shadow tree in the snapshot (default false).
--      optional boolean includeUserAgentShadowTree
--    returns
--      # The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document.
--      array of DOMNode domNodes
--      # The nodes in the layout tree.
--      array of LayoutTreeNode layoutTreeNodes
--      # Whitelisted ComputedStyle properties for each node in the layout tree.
--      array of ComputedStyle computedStyles
--
--  # Returns a document snapshot, including the full DOM tree of the root node (including iframes,
--  # template contents, and imported documents) in a flattened array, as well as layout and
--  # white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
--  # flattened.
--  command captureSnapshot
--    parameters
--      # Whitelist of computed styles to return.
--      array of string computedStyles
--      # Whether to include layout object paint orders into the snapshot.
--      optional boolean includePaintOrder
--      # Whether to include DOM rectangles (offsetRects, clientRects, scrollRects) into the snapshot
--      optional boolean includeDOMRects
--      # Whether to include blended background colors in the snapshot (default: false).
--      # Blended background color is achieved by blending background colors of all elements
--      # that overlap with the current element.
--      experimental optional boolean includeBlendedBackgroundColors
--      # Whether to include text color opacity in the snapshot (default: false).
--      # An element might have the opacity property set that affects the text color of the element.
--      # The final text color opacity is computed based on the opacity of all overlapping elements.
--      experimental optional boolean includeTextColorOpacities
--    returns
--      # The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document.
--      array of DocumentSnapshot documents
--      # Shared string table that all string properties refer to with indexes.
--      array of string strings
--
--# Query and modify DOM storage.
--experimental domain DOMStorage
--
--  type SerializedStorageKey extends string
--
--  # DOM Storage identifier.
--  type StorageId extends object
--    properties
--      # Security origin for the storage.
--      optional string securityOrigin
--      # Represents a key by which DOM Storage keys its CachedStorageAreas
--      optional SerializedStorageKey storageKey
--      # Whether the storage is local storage (not session storage).
--      boolean isLocalStorage
--
--  # DOM Storage item.
--  type Item extends array of string
--
--  command clear
--    parameters
--      StorageId storageId
--
--  # Disables storage tracking, prevents storage events from being sent to the client.
--  command disable
--
--  # Enables storage tracking, storage events will now be delivered to the client.
--  command enable
--
--  command getDOMStorageItems
--    parameters
--      StorageId storageId
--    returns
--      array of Item entries
--
--  command removeDOMStorageItem
--    parameters
--      StorageId storageId
--      string key
--
--  command setDOMStorageItem
--    parameters
--      StorageId storageId
--      string key
--      string value
--
--  event domStorageItemAdded
--    parameters
--      StorageId storageId
--      string key
--      string newValue
--
--  event domStorageItemRemoved
--    parameters
--      StorageId storageId
--      string key
--
--  event domStorageItemUpdated
--    parameters
--      StorageId storageId
--      string key
--      string oldValue
--      string newValue
--
--  event domStorageItemsCleared
--    parameters
--      StorageId storageId
--
--experimental domain DeviceOrientation
--
--  # Clears the overridden Device Orientation.
--  command clearDeviceOrientationOverride
--
--  # Overrides the Device Orientation.
--  command setDeviceOrientationOverride
--    parameters
--      # Mock alpha
--      number alpha
--      # Mock beta
--      number beta
--      # Mock gamma
--      number gamma
--
--# This domain emulates different environments for the page.
--domain Emulation
--  depends on DOM
--  depends on Page
--  depends on Runtime
--
--  experimental type SafeAreaInsets extends object
--    properties
--      # Overrides safe-area-inset-top.
--      optional integer top
--      # Overrides safe-area-max-inset-top.
--      optional integer topMax
--      # Overrides safe-area-inset-left.
--      optional integer left
--      # Overrides safe-area-max-inset-left.
--      optional integer leftMax
--      # Overrides safe-area-inset-bottom.
--      optional integer bottom
--      # Overrides safe-area-max-inset-bottom.
--      optional integer bottomMax
--      # Overrides safe-area-inset-right.
--      optional integer right
--      # Overrides safe-area-max-inset-right.
--      optional integer rightMax
--
--  # Screen orientation.
--  type ScreenOrientation extends object
--    properties
--      # Orientation type.
--      enum type
--        portraitPrimary
--        portraitSecondary
--        landscapePrimary
--        landscapeSecondary
--      # Orientation angle.
--      integer angle
--
--  type DisplayFeature extends object
--    properties
--      # Orientation of a display feature in relation to screen
--      enum orientation
--        vertical
--        horizontal
--      # The offset from the screen origin in either the x (for vertical
--      # orientation) or y (for horizontal orientation) direction.
--      integer offset
--      # A display feature may mask content such that it is not physically
--      # displayed - this length along with the offset describes this area.
--      # A display feature that only splits content will have a 0 mask_length.
--      integer maskLength
--
--  type DevicePosture extends object
--    properties
--      # Current posture of the device
--      enum type
--        continuous
--        folded
--
--  type MediaFeature extends object
--    properties
--      string name
--      string value
--
--  # advance: If the scheduler runs out of immediate work, the virtual time base may fast forward to
--  # allow the next delayed task (if any) to run; pause: The virtual time base may not advance;
--  # pauseIfNetworkFetchesPending: The virtual time base may not advance if there are any pending
--  # resource fetches.
--  experimental type VirtualTimePolicy extends string
--    enum
--      advance
--      pause
--      pauseIfNetworkFetchesPending
--
--  # Used to specify User Agent Client Hints to emulate. See https://wicg.github.io/ua-client-hints
--  experimental type UserAgentBrandVersion extends object
--    properties
--      string brand
--      string version
--
--  # Used to specify User Agent Client Hints to emulate. See https://wicg.github.io/ua-client-hints
--  # Missing optional values will be filled in by the target with what it would normally use.
--  experimental type UserAgentMetadata extends object
--    properties
--      # Brands appearing in Sec-CH-UA.
--      optional array of UserAgentBrandVersion brands
--      # Brands appearing in Sec-CH-UA-Full-Version-List.
--      optional array of UserAgentBrandVersion fullVersionList
--      deprecated optional string fullVersion
--      string platform
--      string platformVersion
--      string architecture
--      string model
--      boolean mobile
--      optional string bitness
--      optional boolean wow64
--      # Used to specify User Agent form-factor values.
--      # See https://wicg.github.io/ua-client-hints/#sec-ch-ua-form-factors
--      optional array of string formFactors
--
--  # Used to specify sensor types to emulate.
--  # See https://w3c.github.io/sensors/#automation for more information.
--  experimental type SensorType extends string
--    enum
--      absolute-orientation
--      accelerometer
--      ambient-light
--      gravity
--      gyroscope
--      linear-acceleration
--      magnetometer
--      relative-orientation
--
--  experimental type SensorMetadata extends object
--    properties
--      optional boolean available
--      optional number minimumFrequency
--      optional number maximumFrequency
--
--  experimental type SensorReadingSingle extends object
--    properties
--      number value
--
--  experimental type SensorReadingXYZ extends object
--    properties
--      number x
--      number y
--      number z
--
--  experimental type SensorReadingQuaternion extends object
--    properties
--      number x
--      number y
--      number z
--      number w
--
--  experimental type SensorReading extends object
--    properties
--      optional SensorReadingSingle single
--      optional SensorReadingXYZ xyz
--      optional SensorReadingQuaternion quaternion
--
--  experimental type PressureSource extends string
--    enum
--      cpu
--
--  experimental type PressureState extends string
--    enum
--      nominal
--      fair
--      serious
--      critical
--
--  experimental type PressureMetadata extends object
--    properties
--      optional boolean available
--
--  # Tells whether emulation is supported.
--  deprecated command canEmulate
--    returns
--      # True if emulation is supported.
--      boolean result
--
--  # Clears the overridden device metrics.
--  command clearDeviceMetricsOverride
--
--  # Clears the overridden Geolocation Position and Error.
--  command clearGeolocationOverride
--
--  # Requests that page scale factor is reset to initial values.
--  experimental command resetPageScaleFactor
--
--  # Enables or disables simulating a focused and active page.
--  experimental command setFocusEmulationEnabled
--    parameters
--      # Whether to enable to disable focus emulation.
--      boolean enabled
--
--  # Automatically render all web contents using a dark theme.
--  experimental command setAutoDarkModeOverride
--    parameters
--      # Whether to enable or disable automatic dark mode.
--      # If not specified, any existing override will be cleared.
--      optional boolean enabled
--
--  # Enables CPU throttling to emulate slow CPUs.
--  command setCPUThrottlingRate
--    parameters
--      # Throttling rate as a slowdown factor (1 is no throttle, 2 is 2x slowdown, etc).
--      number rate
--
--  # Sets or clears an override of the default background color of the frame. This override is used
--  # if the content does not specify one.
--  command setDefaultBackgroundColorOverride
--    parameters
--      # RGBA of the default background color. If not specified, any existing override will be
--      # cleared.
--      optional DOM.RGBA color
--
--  # Overrides the values for env(safe-area-inset-*) and env(safe-area-max-inset-*). Unset values will cause the
--  # respective variables to be undefined, even if previously overridden.
--  experimental command setSafeAreaInsetsOverride
--    parameters
--      SafeAreaInsets insets
--
--  # Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
--  # window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
--  # query results).
--  command setDeviceMetricsOverride
--    parameters
--      # Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
--      integer width
--      # Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
--      integer height
--      # Overriding device scale factor value. 0 disables the override.
--      number deviceScaleFactor
--      # Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
--      # autosizing and more.
--      boolean mobile
--      # Scale to apply to resulting view image.
--      experimental optional number scale
--      # Overriding screen width value in pixels (minimum 0, maximum 10000000).
--      experimental optional integer screenWidth
--      # Overriding screen height value in pixels (minimum 0, maximum 10000000).
--      experimental optional integer screenHeight
--      # Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
--      experimental optional integer positionX
--      # Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
--      experimental optional integer positionY
--      # Do not set visible view size, rely upon explicit setVisibleSize call.
--      experimental optional boolean dontSetVisibleSize
--      # Screen orientation override.
--      optional ScreenOrientation screenOrientation
--      # If set, the visible area of the page will be overridden to this viewport. This viewport
--      # change is not observed by the page, e.g. viewport-relative elements do not change positions.
--      experimental optional Page.Viewport viewport
--      # If set, the display feature of a multi-segment screen. If not set, multi-segment support
--      # is turned-off.
--      # Deprecated, use Emulation.setDisplayFeaturesOverride.
--      experimental deprecated optional DisplayFeature displayFeature
--      # If set, the posture of a foldable device. If not set the posture is set
--      # to continuous.
--      # Deprecated, use Emulation.setDevicePostureOverride.
--      experimental deprecated optional DevicePosture devicePosture
--
--  # Start reporting the given posture value to the Device Posture API.
--  # This override can also be set in setDeviceMetricsOverride().
--  experimental command setDevicePostureOverride
--    parameters
--      DevicePosture posture
--
--  # Clears a device posture override set with either setDeviceMetricsOverride()
--  # or setDevicePostureOverride() and starts using posture information from the
--  # platform again.
--  # Does nothing if no override is set.
--  experimental command clearDevicePostureOverride
--
--  # Start using the given display features to pupulate the Viewport Segments API.
--  # This override can also be set in setDeviceMetricsOverride().
--  experimental command setDisplayFeaturesOverride
--    parameters
--      array of DisplayFeature features
--
--  # Clears the display features override set with either setDeviceMetricsOverride()
--  # or setDisplayFeaturesOverride() and starts using display features from the
--  # platform again.
--  # Does nothing if no override is set.
--  experimental command clearDisplayFeaturesOverride
--
--  experimental command setScrollbarsHidden
--    parameters
--      # Whether scrollbars should be always hidden.
--      boolean hidden
--
--  experimental command setDocumentCookieDisabled
--    parameters
--      # Whether document.coookie API should be disabled.
--      boolean disabled
--
--  experimental command setEmitTouchEventsForMouse
--    parameters
--      # Whether touch emulation based on mouse input should be enabled.
--      boolean enabled
--      # Touch/gesture events configuration. Default: current platform.
--      optional enum configuration
--        mobile
--        desktop
--
--  # Emulates the given media type or media feature for CSS media queries.
--  command setEmulatedMedia
--    parameters
--      # Media type to emulate. Empty string disables the override.
--      optional string media
--      # Media features to emulate.
--      optional array of MediaFeature features
--
--  # Emulates the given vision deficiency.
--  command setEmulatedVisionDeficiency
--    parameters
--      # Vision deficiency to emulate. Order: best-effort emulations come first, followed by any
--      # physiologically accurate emulations for medically recognized color vision deficiencies.
--      enum type
--        none
--        blurredVision
--        reducedContrast
--        achromatopsia
--        deuteranopia
--        protanopia
--        tritanopia
--
--  # Emulates the given OS text scale.
--  command setEmulatedOSTextScale
--    parameters
--      optional number scale
--
--  # Overrides the Geolocation Position or Error. Omitting latitude, longitude or
--  # accuracy emulates position unavailable.
--  command setGeolocationOverride
--    parameters
--      # Mock latitude
--      optional number latitude
--      # Mock longitude
--      optional number longitude
--      # Mock accuracy
--      optional number accuracy
--      # Mock altitude
--      optional number altitude
--      # Mock altitudeAccuracy
--      optional number altitudeAccuracy
--      # Mock heading
--      optional number heading
--      # Mock speed
--      optional number speed
--
--  experimental command getOverriddenSensorInformation
--    parameters
--      SensorType type
--    returns
--      number requestedSamplingFrequency
--
--  # Overrides a platform sensor of a given type. If |enabled| is true, calls to
--  # Sensor.start() will use a virtual sensor as backend rather than fetching
--  # data from a real hardware sensor. Otherwise, existing virtual
--  # sensor-backend Sensor objects will fire an error event and new calls to
--  # Sensor.start() will attempt to use a real sensor instead.
--  experimental command setSensorOverrideEnabled
--    parameters
--      boolean enabled
--      SensorType type
--      optional SensorMetadata metadata
--
--  # Updates the sensor readings reported by a sensor type previously overridden
--  # by setSensorOverrideEnabled.
--  experimental command setSensorOverrideReadings
--    parameters
--      SensorType type
--      SensorReading reading
--
--  # Overrides a pressure source of a given type, as used by the Compute
--  # Pressure API, so that updates to PressureObserver.observe() are provided
--  # via setPressureStateOverride instead of being retrieved from
--  # platform-provided telemetry data.
--  experimental command setPressureSourceOverrideEnabled
--    parameters
--      boolean enabled
--      PressureSource source
--      optional PressureMetadata metadata
--
--  # TODO: OBSOLETE: To remove when setPressureDataOverride is merged.
--  # Provides a given pressure state that will be processed and eventually be
--  # delivered to PressureObserver users. |source| must have been previously
--  # overridden by setPressureSourceOverrideEnabled.
--  experimental command setPressureStateOverride
--    parameters
--      PressureSource source
--      PressureState state
--
--  # Provides a given pressure data set that will be processed and eventually be
--  # delivered to PressureObserver users. |source| must have been previously
--  # overridden by setPressureSourceOverrideEnabled.
--  experimental command setPressureDataOverride
--    parameters
--      PressureSource source
--      PressureState state
--      optional number ownContributionEstimate
--
--  # Overrides the Idle state.
--  command setIdleOverride
--    parameters
--      # Mock isUserActive
--      boolean isUserActive
--      # Mock isScreenUnlocked
--      boolean isScreenUnlocked
--
--  # Clears Idle state overrides.
--  command clearIdleOverride
--
--  # Overrides value returned by the javascript navigator object.
--  experimental deprecated command setNavigatorOverrides
--    parameters
--      # The platform navigator.platform should return.
--      string platform
--
--  # Sets a specified page scale factor.
--  experimental command setPageScaleFactor
--    parameters
--      # Page scale factor.
--      number pageScaleFactor
--
--  # Switches script execution in the page.
--  command setScriptExecutionDisabled
--    parameters
--      # Whether script execution should be disabled in the page.
--      boolean value
--
--  # Enables touch on platforms which do not support them.
--  command setTouchEmulationEnabled
--    parameters
--      # Whether the touch event emulation should be enabled.
--      boolean enabled
--      # Maximum touch points supported. Defaults to one.
--      optional integer maxTouchPoints
--
--  # Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets
--  # the current virtual time policy.  Note this supersedes any previous time budget.
--  experimental command setVirtualTimePolicy
--    parameters
--      VirtualTimePolicy policy
--      # If set, after this many virtual milliseconds have elapsed virtual time will be paused and a
--      # virtualTimeBudgetExpired event is sent.
--      optional number budget
--      # If set this specifies the maximum number of tasks that can be run before virtual is forced
--      # forwards to prevent deadlock.
--      optional integer maxVirtualTimeTaskStarvationCount
--      # If set, base::Time::Now will be overridden to initially return this value.
--      optional Network.TimeSinceEpoch initialVirtualTime
--    returns
--      # Absolute timestamp at which virtual time was first enabled (up time in milliseconds).
--      number virtualTimeTicksBase
--
--  # Overrides default host system locale with the specified one.
--  experimental command setLocaleOverride
--    parameters
--      # ICU style C locale (e.g. "en_US"). If not specified or empty, disables the override and
--      # restores default host system locale.
--      optional string locale
--
--  # Overrides default host system timezone with the specified one.
--  command setTimezoneOverride
--    parameters
--      # The timezone identifier. List of supported timezones:
--      # https://source.chromium.org/chromium/chromium/deps/icu.git/+/faee8bc70570192d82d2978a71e2a615788597d1:source/data/misc/metaZones.txt
--      # If empty, disables the override and restores default host system timezone.
--      string timezoneId
--
--  # Resizes the frame/viewport of the page. Note that this does not affect the frame's container
--  # (e.g. browser window). Can be used to produce screenshots of the specified size. Not supported
--  # on Android.
--  experimental deprecated command setVisibleSize
--    parameters
--      # Frame width (DIP).
--      integer width
--      # Frame height (DIP).
--      integer height
--
--  # Notification sent after the virtual time budget for the current VirtualTimePolicy has run out.
--  experimental event virtualTimeBudgetExpired
--
--  # Enum of image types that can be disabled.
--  experimental type DisabledImageType extends string
--    enum
--      avif
--      webp
--
--  experimental command setDisabledImageTypes
--    parameters
--      # Image types to disable.
--      array of DisabledImageType imageTypes
--
--
--  # Override the value of navigator.connection.saveData
--  experimental command setDataSaverOverride
--    parameters
--      # Override value. Omitting the parameter disables the override.
--      optional boolean dataSaverEnabled
--
--  experimental command setHardwareConcurrencyOverride
--    parameters
--      # Hardware concurrency to report
--      integer hardwareConcurrency
--
--  # Allows overriding user agent with the given string.
--  # `userAgentMetadata` must be set for Client Hint headers to be sent.
--  command setUserAgentOverride
--    parameters
--      # User agent to use.
--      string userAgent
--      # Browser language to emulate.
--      optional string acceptLanguage
--      # The platform navigator.platform should return.
--      optional string platform
--      # To be sent in Sec-CH-UA-* headers and returned in navigator.userAgentData
--      experimental optional UserAgentMetadata userAgentMetadata
--
--  # Allows overriding the automation flag.
--  experimental command setAutomationOverride
--    parameters
--      # Whether the override should be enabled.
--      boolean enabled
--
--  # Allows overriding the difference between the small and large viewport sizes, which determine the
--  # value of the `svh` and `lvh` unit, respectively. Only supported for top-level frames.
--  experimental command setSmallViewportHeightDifferenceOverride
--    parameters
--      # This will cause an element of size 100svh to be `difference` pixels smaller than an element
--      # of size 100lvh.
--      integer difference
--
--# This domain provides experimental commands only supported in headless mode.
--experimental domain HeadlessExperimental
--  depends on Page
--  depends on Runtime
--
--  # Encoding options for a screenshot.
--  type ScreenshotParams extends object
--    properties
--      # Image compression format (defaults to png).
--      optional enum format
--        jpeg
--        png
--        webp
--      # Compression quality from range [0..100] (jpeg and webp only).
--      optional integer quality
--      # Optimize image encoding for speed, not for resulting size (defaults to false)
--      optional boolean optimizeForSpeed
--
--  # Sends a BeginFrame to the target and returns when the frame was completed. Optionally captures a
--  # screenshot from the resulting frame. Requires that the target was created with enabled
--  # BeginFrameControl. Designed for use with --run-all-compositor-stages-before-draw, see also
--  # https://goo.gle/chrome-headless-rendering for more background.
--  command beginFrame
--    parameters
--      # Timestamp of this BeginFrame in Renderer TimeTicks (milliseconds of uptime). If not set,
--      # the current time will be used.
--      optional number frameTimeTicks
--      # The interval between BeginFrames that is reported to the compositor, in milliseconds.
--      # Defaults to a 60 frames/second interval, i.e. about 16.666 milliseconds.
--      optional number interval
--      # Whether updates should not be committed and drawn onto the display. False by default. If
--      # true, only side effects of the BeginFrame will be run, such as layout and animations, but
--      # any visual updates may not be visible on the display or in screenshots.
--      optional boolean noDisplayUpdates
--      # If set, a screenshot of the frame will be captured and returned in the response. Otherwise,
--      # no screenshot will be captured. Note that capturing a screenshot can fail, for example,
--      # during renderer initialization. In such a case, no screenshot data will be returned.
--      optional ScreenshotParams screenshot
--    returns
--      # Whether the BeginFrame resulted in damage and, thus, a new frame was committed to the
--      # display. Reported for diagnostic uses, may be removed in the future.
--      boolean hasDamage
--      # Base64-encoded image data of the screenshot, if one was requested and successfully taken.
--      optional binary screenshotData
--
--  # Disables headless events for the target.
--  deprecated command disable
--
--  # Enables headless events for the target.
--  deprecated command enable
--
--# Input/Output operations for streams produced by DevTools.
--domain IO
--
--  # This is either obtained from another method or specified as `blob:<uuid>` where
--  # `<uuid>` is an UUID of a Blob.
--  type StreamHandle extends string
--
--  # Close the stream, discard any temporary backing storage.
--  command close
--    parameters
--      # Handle of the stream to close.
--      StreamHandle handle
--
--  # Read a chunk of the stream
--  command read
--    parameters
--      # Handle of the stream to read.
--      StreamHandle handle
--      # Seek to the specified offset before reading (if not specified, proceed with offset
--      # following the last read). Some types of streams may only support sequential reads.
--      optional integer offset
--      # Maximum number of bytes to read (left upon the agent discretion if not specified).
--      optional integer size
--    returns
--      # Set if the data is base64-encoded
--      optional boolean base64Encoded
--      # Data that were read.
--      string data
--      # Set if the end-of-file condition occurred while reading.
--      boolean eof
--
--  # Return UUID of Blob object specified by a remote object id.
--  command resolveBlob
--    parameters
--      # Object id of a Blob object wrapper.
--      Runtime.RemoteObjectId objectId
--    returns
--      # UUID of the specified Blob.
--      string uuid
--
--experimental domain FileSystem
--  depends on Network
--  depends on Storage
--
--  type File extends object
--    properties
--      string name
--      # Timestamp
--      Network.TimeSinceEpoch lastModified
--      # Size in bytes
--      number size
--      string type
--
--  type Directory extends object
--    properties
--      string name
--      array of string nestedDirectories
--      # Files that are directly nested under this directory.
--      array of File nestedFiles
--
--  type BucketFileSystemLocator extends object
--    properties
--      # Storage key
--      Storage.SerializedStorageKey storageKey
--      # Bucket name. Not passing a `bucketName` will retrieve the default Bucket. (https://developer.mozilla.org/en-US/docs/Web/API/Storage_API#storage_buckets)
--      optional string bucketName
--      # Path to the directory using each path component as an array item.
--      array of string pathComponents
--
--  command getDirectory
--    parameters
--      BucketFileSystemLocator bucketFileSystemLocator
--    returns
--      # Returns the directory object at the path.
--      Directory directory
--
--experimental domain IndexedDB
--  depends on Runtime
--  depends on Storage
--
--  # Database with an array of object stores.
--  type DatabaseWithObjectStores extends object
--    properties
--      # Database name.
--      string name
--      # Database version (type is not 'integer', as the standard
--      # requires the version number to be 'unsigned long long')
--      number version
--      # Object stores in this database.
--      array of ObjectStore objectStores
--
--  # Object store.
--  type ObjectStore extends object
--    properties
--      # Object store name.
--      string name
--      # Object store key path.
--      KeyPath keyPath
--      # If true, object store has auto increment flag set.
--      boolean autoIncrement
--      # Indexes in this object store.
--      array of ObjectStoreIndex indexes
--
--  # Object store index.
--  type ObjectStoreIndex extends object
--    properties
--      # Index name.
--      string name
--      # Index key path.
--      KeyPath keyPath
--      # If true, index is unique.
--      boolean unique
--      # If true, index allows multiple entries for a key.
--      boolean multiEntry
--
--  # Key.
--  type Key extends object
--    properties
--      # Key type.
--      enum type
--        number
--        string
--        date
--        array
--      # Number value.
--      optional number number
--      # String value.
--      optional string string
--      # Date value.
--      optional number date
--      # Array value.
--      optional array of Key array
--
--  # Key range.
--  type KeyRange extends object
--    properties
--      # Lower bound.
--      optional Key lower
--      # Upper bound.
--      optional Key upper
--      # If true lower bound is open.
--      boolean lowerOpen
--      # If true upper bound is open.
--      boolean upperOpen
--
--  # Data entry.
--  type DataEntry extends object
--    properties
--      # Key object.
--      Runtime.RemoteObject key
--      # Primary key object.
--      Runtime.RemoteObject primaryKey
--      # Value object.
--      Runtime.RemoteObject value
--
--  # Key path.
--  type KeyPath extends object
--    properties
--      # Key path type.
--      enum type
--        null
--        string
--        array
--      # String value.
--      optional string string
--      # Array value.
--      optional array of string array
--
--  # Clears all entries from an object store.
--  command clearObjectStore
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--      # Database name.
--      string databaseName
--      # Object store name.
--      string objectStoreName
--
--  # Deletes a database.
--  command deleteDatabase
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--      # Database name.
--      string databaseName
--
--  # Delete a range of entries from an object store
--  command deleteObjectStoreEntries
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--      string databaseName
--      string objectStoreName
--      # Range of entry keys to delete
--      KeyRange keyRange
--
--  # Disables events from backend.
--  command disable
--
--  # Enables events from backend.
--  command enable
--
--  # Requests data from object store or index.
--  command requestData
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--      # Database name.
--      string databaseName
--      # Object store name.
--      string objectStoreName
--      # Index name, empty string for object store data requests.
--      string indexName
--      # Number of records to skip.
--      integer skipCount
--      # Number of records to fetch.
--      integer pageSize
--      # Key range.
--      optional KeyRange keyRange
--    returns
--      # Array of object store data entries.
--      array of DataEntry objectStoreDataEntries
--      # If true, there are more entries to fetch in the given range.
--      boolean hasMore
--
--  # Gets metadata of an object store.
--  command getMetadata
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--      # Database name.
--      string databaseName
--      # Object store name.
--      string objectStoreName
--    returns
--      # the entries count
--      number entriesCount
--      # the current value of key generator, to become the next inserted
--      # key into the object store. Valid if objectStore.autoIncrement
--      # is true.
--      number keyGeneratorValue
--
--  # Requests database with given name in given frame.
--  command requestDatabase
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--      # Database name.
--      string databaseName
--    returns
--      # Database with an array of object stores.
--      DatabaseWithObjectStores databaseWithObjectStores
--
--  # Requests database names for given security origin.
--  command requestDatabaseNames
--    parameters
--      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
--      # Security origin.
--      optional string securityOrigin
--      # Storage key.
--      optional string storageKey
--      # Storage bucket. If not specified, it uses the default bucket.
--      optional Storage.StorageBucket storageBucket
--    returns
--      # Database names for origin.
--      array of string databaseNames
--
--domain Input
--
--  type TouchPoint extends object
--    properties
--      # X coordinate of the event relative to the main frame's viewport in CSS pixels.
--      number x
--      # Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
--      # the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
--      number y
--      # X radius of the touch area (default: 1.0).
--      optional number radiusX
--      # Y radius of the touch area (default: 1.0).
--      optional number radiusY
--      # Rotation angle (default: 0.0).
--      optional number rotationAngle
--      # Force (default: 1.0).
--      optional number force
--      # The normalized tangential pressure, which has a range of [-1,1] (default: 0).
--      experimental optional number tangentialPressure
--      # The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0)
--      optional number tiltX
--      # The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).
--      optional number tiltY
--      # The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).
--      experimental optional integer twist
--      # Identifier used to track touch sources between events, must be unique within an event.
--      optional number id
--
--  experimental type GestureSourceType extends string
--    enum
--      default
--      touch
--      mouse
--
--  type MouseButton extends string
--    enum
--        none
--        left
--        middle
--        right
--        back
--        forward
--
--  # UTC time in seconds, counted from January 1, 1970.
--  type TimeSinceEpoch extends number
--
--  experimental type DragDataItem extends object
--    properties
--      # Mime type of the dragged data.
--      string mimeType
--      # Depending of the value of `mimeType`, it contains the dragged link,
--      # text, HTML markup or any other data.
--      string data
--
--      # Title associated with a link. Only valid when `mimeType` == "text/uri-list".
--      optional string title
--
--      # Stores the base URL for the contained markup. Only valid when `mimeType`
--      # == "text/html".
--      optional string baseURL
--
--
--  experimental type DragData extends object
--    properties
--      array of DragDataItem items
--      # List of filenames that should be included when dropping
--      optional array of string files
--      # Bit field representing allowed drag operations. Copy = 1, Link = 2, Move = 16
--      integer dragOperationsMask
--
--  # Dispatches a drag event into the page.
--  experimental command dispatchDragEvent
--    parameters
--      # Type of the drag event.
--      enum type
--        dragEnter
--        dragOver
--        drop
--        dragCancel
--      # X coordinate of the event relative to the main frame's viewport in CSS pixels.
--      number x
--      # Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
--      # the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
--      number y
--      DragData data
--      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
--      # (default: 0).
--      optional integer modifiers
--
--  # Dispatches a key event to the page.
--  command dispatchKeyEvent
--    parameters
--      # Type of the key event.
--      enum type
--        keyDown
--        keyUp
--        rawKeyDown
--        char
--      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
--      # (default: 0).
--      optional integer modifiers
--      # Time at which the event occurred.
--      optional TimeSinceEpoch timestamp
--      # Text as generated by processing a virtual key code with a keyboard layout. Not needed for
--      # for `keyUp` and `rawKeyDown` events (default: "")
--      optional string text
--      # Text that would have been generated by the keyboard if no modifiers were pressed (except for
--      # shift). Useful for shortcut (accelerator) key handling (default: "").
--      optional string unmodifiedText
--      # Unique key identifier (e.g., 'U+0041') (default: "").
--      optional string keyIdentifier
--      # Unique DOM defined string value for each physical key (e.g., 'KeyA') (default: "").
--      optional string code
--      # Unique DOM defined string value describing the meaning of the key in the context of active
--      # modifiers, keyboard layout, etc (e.g., 'AltGr') (default: "").
--      optional string key
--      # Windows virtual key code (default: 0).
--      optional integer windowsVirtualKeyCode
--      # Native virtual key code (default: 0).
--      optional integer nativeVirtualKeyCode
--      # Whether the event was generated from auto repeat (default: false).
--      optional boolean autoRepeat
--      # Whether the event was generated from the keypad (default: false).
--      optional boolean isKeypad
--      # Whether the event was a system key event (default: false).
--      optional boolean isSystemKey
--      # Whether the event was from the left or right side of the keyboard. 1=Left, 2=Right (default:
--      # 0).
--      optional integer location
--      # Editing commands to send with the key event (e.g., 'selectAll') (default: []).
--      # These are related to but not equal the command names used in `document.execCommand` and NSStandardKeyBindingResponding.
--      # See https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/editing/commands/editor_command_names.h for valid command names.
--      experimental optional array of string commands
--
--  # This method emulates inserting text that doesn't come from a key press,
--  # for example an emoji keyboard or an IME.
--  experimental command insertText
--    parameters
--      # The text to insert.
--      string text
--
--  # This method sets the current candidate text for IME.
--  # Use imeCommitComposition to commit the final text.
--  # Use imeSetComposition with empty string as text to cancel composition.
--  experimental command imeSetComposition
--    parameters
--      # The text to insert
--      string text
--      # selection start
--      integer selectionStart
--      # selection end
--      integer selectionEnd
--      # replacement start
--      optional integer replacementStart
--      # replacement end
--      optional integer replacementEnd
--
--  # Dispatches a mouse event to the page.
--  command dispatchMouseEvent
--    parameters
--      # Type of the mouse event.
--      enum type
--        mousePressed
--        mouseReleased
--        mouseMoved
--        mouseWheel
--      # X coordinate of the event relative to the main frame's viewport in CSS pixels.
--      number x
--      # Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
--      # the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
--      number y
--      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
--      # (default: 0).
--      optional integer modifiers
--      # Time at which the event occurred.
--      optional TimeSinceEpoch timestamp
--      # Mouse button (default: "none").
--      optional MouseButton button
--      # A number indicating which buttons are pressed on the mouse when a mouse event is triggered.
--      # Left=1, Right=2, Middle=4, Back=8, Forward=16, None=0.
--      optional integer buttons
--      # Number of times the mouse button was clicked (default: 0).
--      optional integer clickCount
--      # The normalized pressure, which has a range of [0,1] (default: 0).
--      experimental optional number force
--      # The normalized tangential pressure, which has a range of [-1,1] (default: 0).
--      experimental optional number tangentialPressure
--      # The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0).
--      optional number tiltX
--      # The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).
--      optional number tiltY
--      # The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).
--      experimental optional integer twist
--      # X delta in CSS pixels for mouse wheel event (default: 0).
--      optional number deltaX
--      # Y delta in CSS pixels for mouse wheel event (default: 0).
--      optional number deltaY
--      # Pointer type (default: "mouse").
--      optional enum pointerType
--        mouse
--        pen
--
--  # Dispatches a touch event to the page.
--  command dispatchTouchEvent
--    parameters
--      # Type of the touch event. TouchEnd and TouchCancel must not contain any touch points, while
--      # TouchStart and TouchMove must contains at least one.
--      enum type
--        touchStart
--        touchEnd
--        touchMove
--        touchCancel
--      # Active touch points on the touch device. One event per any changed point (compared to
--      # previous touch event in a sequence) is generated, emulating pressing/moving/releasing points
--      # one by one.
--      array of TouchPoint touchPoints
--      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
--      # (default: 0).
--      optional integer modifiers
--      # Time at which the event occurred.
--      optional TimeSinceEpoch timestamp
--
--  # Cancels any active dragging in the page.
--  command cancelDragging
--
--  # Emulates touch event from the mouse event parameters.
--  experimental command emulateTouchFromMouseEvent
--    parameters
--      # Type of the mouse event.
--      enum type
--        mousePressed
--        mouseReleased
--        mouseMoved
--        mouseWheel
--      # X coordinate of the mouse pointer in DIP.
--      integer x
--      # Y coordinate of the mouse pointer in DIP.
--      integer y
--      # Mouse button. Only "none", "left", "right" are supported.
--      MouseButton button
--      # Time at which the event occurred (default: current time).
--      optional TimeSinceEpoch timestamp
--      # X delta in DIP for mouse wheel event (default: 0).
--      optional number deltaX
--      # Y delta in DIP for mouse wheel event (default: 0).
--      optional number deltaY
--      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
--      # (default: 0).
--      optional integer modifiers
--      # Number of times the mouse button was clicked (default: 0).
--      optional integer clickCount
--
--  # Ignores input events (useful while auditing page).
--  command setIgnoreInputEvents
--    parameters
--      # Ignores input events processing when set to true.
--      boolean ignore
--
--  # Prevents default drag and drop behavior and instead emits `Input.dragIntercepted` events.
--  # Drag and drop behavior can be directly controlled via `Input.dispatchDragEvent`.
--  experimental command setInterceptDrags
--    parameters
--      boolean enabled
--
--  # Synthesizes a pinch gesture over a time period by issuing appropriate touch events.
--  experimental command synthesizePinchGesture
--    parameters
--      # X coordinate of the start of the gesture in CSS pixels.
--      number x
--      # Y coordinate of the start of the gesture in CSS pixels.
--      number y
--      # Relative scale factor after zooming (>1.0 zooms in, <1.0 zooms out).
--      number scaleFactor
--      # Relative pointer speed in pixels per second (default: 800).
--      optional integer relativeSpeed
--      # Which type of input events to be generated (default: 'default', which queries the platform
--      # for the preferred input type).
--      optional GestureSourceType gestureSourceType
--
--  # Synthesizes a scroll gesture over a time period by issuing appropriate touch events.
--  experimental command synthesizeScrollGesture
--    parameters
--      # X coordinate of the start of the gesture in CSS pixels.
--      number x
--      # Y coordinate of the start of the gesture in CSS pixels.
--      number y
--      # The distance to scroll along the X axis (positive to scroll left).
--      optional number xDistance
--      # The distance to scroll along the Y axis (positive to scroll up).
--      optional number yDistance
--      # The number of additional pixels to scroll back along the X axis, in addition to the given
--      # distance.
--      optional number xOverscroll
--      # The number of additional pixels to scroll back along the Y axis, in addition to the given
--      # distance.
--      optional number yOverscroll
--      # Prevent fling (default: true).
--      optional boolean preventFling
--      # Swipe speed in pixels per second (default: 800).
--      optional integer speed
--      # Which type of input events to be generated (default: 'default', which queries the platform
--      # for the preferred input type).
--      optional GestureSourceType gestureSourceType
--      # The number of times to repeat the gesture (default: 0).
--      optional integer repeatCount
--      # The number of milliseconds delay between each repeat. (default: 250).
--      optional integer repeatDelayMs
--      # The name of the interaction markers to generate, if not empty (default: "").
--      optional string interactionMarkerName
--
--  # Synthesizes a tap gesture over a time period by issuing appropriate touch events.
--  experimental command synthesizeTapGesture
--    parameters
--      # X coordinate of the start of the gesture in CSS pixels.
--      number x
--      # Y coordinate of the start of the gesture in CSS pixels.
--      number y
--      # Duration between touchdown and touchup events in ms (default: 50).
--      optional integer duration
--      # Number of times to perform the tap (e.g. 2 for double tap, default: 1).
--      optional integer tapCount
--      # Which type of input events to be generated (default: 'default', which queries the platform
--      # for the preferred input type).
--      optional GestureSourceType gestureSourceType
--
--  # Emitted only when `Input.setInterceptDrags` is enabled. Use this data with `Input.dispatchDragEvent` to
--  # restore normal drag and drop behavior.
--  experimental event dragIntercepted
--    parameters
--      DragData data
--
--experimental domain Inspector
--
--  # Disables inspector domain notifications.
--  command disable
--
--  # Enables inspector domain notifications.
--  command enable
--
--  # Fired when remote debugging connection is about to be terminated. Contains detach reason.
--  event detached
--    parameters
--      # The reason why connection has been terminated.
--      string reason
--
--  # Fired when debugging target has crashed
--  event targetCrashed
--
--  # Fired when debugging target has reloaded after crash
--  event targetReloadedAfterCrash
--
--experimental domain LayerTree
--  depends on DOM
--
--  # Unique Layer identifier.
--  type LayerId extends string
--
--  # Unique snapshot identifier.
--  type SnapshotId extends string
--
--  # Rectangle where scrolling happens on the main thread.
--  type ScrollRect extends object
--    properties
--      # Rectangle itself.
--      DOM.Rect rect
--      # Reason for rectangle to force scrolling on the main thread
--      enum type
--        RepaintsOnScroll
--        TouchEventHandler
--        WheelEventHandler
--
--  # Sticky position constraints.
--  type StickyPositionConstraint extends object
--    properties
--      # Layout rectangle of the sticky element before being shifted
--      DOM.Rect stickyBoxRect
--      # Layout rectangle of the containing block of the sticky element
--      DOM.Rect containingBlockRect
--      # The nearest sticky layer that shifts the sticky box
--      optional LayerId nearestLayerShiftingStickyBox
--      # The nearest sticky layer that shifts the containing block
--      optional LayerId nearestLayerShiftingContainingBlock
--
--  # Serialized fragment of layer picture along with its offset within the layer.
--  type PictureTile extends object
--    properties
--      # Offset from owning layer left boundary
--      number x
--      # Offset from owning layer top boundary
--      number y
--      # Base64-encoded snapshot data.
--      binary picture
--
--  # Information about a compositing layer.
--  type Layer extends object
--    properties
--      # The unique id for this layer.
--      LayerId layerId
--      # The id of parent (not present for root).
--      optional LayerId parentLayerId
--      # The backend id for the node associated with this layer.
--      optional DOM.BackendNodeId backendNodeId
--      # Offset from parent layer, X coordinate.
--      number offsetX
--      # Offset from parent layer, Y coordinate.
--      number offsetY
--      # Layer width.
--      number width
--      # Layer height.
--      number height
--      # Transformation matrix for layer, default is identity matrix
--      optional array of number transform
--      # Transform anchor point X, absent if no transform specified
--      optional number anchorX
--      # Transform anchor point Y, absent if no transform specified
--      optional number anchorY
--      # Transform anchor point Z, absent if no transform specified
--      optional number anchorZ
--      # Indicates how many time this layer has painted.
--      integer paintCount
--      # Indicates whether this layer hosts any content, rather than being used for
--      # transform/scrolling purposes only.
--      boolean drawsContent
--      # Set if layer is not visible.
--      optional boolean invisible
--      # Rectangles scrolling on main thread only.
--      optional array of ScrollRect scrollRects
--      # Sticky position constraint information
--      optional StickyPositionConstraint stickyPositionConstraint
--
--  # Array of timings, one per paint step.
--  type PaintProfile extends array of number
--
--  # Provides the reasons why the given layer was composited.
--  command compositingReasons
--    parameters
--      # The id of the layer for which we want to get the reasons it was composited.
--      LayerId layerId
--    returns
--      # A list of strings specifying reasons for the given layer to become composited.
--      array of string compositingReasons
--      # A list of strings specifying reason IDs for the given layer to become composited.
--      array of string compositingReasonIds
--
--  # Disables compositing tree inspection.
--  command disable
--
--  # Enables compositing tree inspection.
--  command enable
--
--  # Returns the snapshot identifier.
--  command loadSnapshot
--    parameters
--      # An array of tiles composing the snapshot.
--      array of PictureTile tiles
--    returns
--      # The id of the snapshot.
--      SnapshotId snapshotId
--
--  # Returns the layer snapshot identifier.
--  command makeSnapshot
--    parameters
--      # The id of the layer.
--      LayerId layerId
--    returns
--      # The id of the layer snapshot.
--      SnapshotId snapshotId
--
--  command profileSnapshot
--    parameters
--      # The id of the layer snapshot.
--      SnapshotId snapshotId
--      # The maximum number of times to replay the snapshot (1, if not specified).
--      optional integer minRepeatCount
--      # The minimum duration (in seconds) to replay the snapshot.
--      optional number minDuration
--      # The clip rectangle to apply when replaying the snapshot.
--      optional DOM.Rect clipRect
--    returns
--      # The array of paint profiles, one per run.
--      array of PaintProfile timings
--
--  # Releases layer snapshot captured by the back-end.
--  command releaseSnapshot
--    parameters
--      # The id of the layer snapshot.
--      SnapshotId snapshotId
--
--  # Replays the layer snapshot and returns the resulting bitmap.
--  command replaySnapshot
--    parameters
--      # The id of the layer snapshot.
--      SnapshotId snapshotId
--      # The first step to replay from (replay from the very start if not specified).
--      optional integer fromStep
--      # The last step to replay to (replay till the end if not specified).
--      optional integer toStep
--      # The scale to apply while replaying (defaults to 1).
--      optional number scale
--    returns
--      # A data: URL for resulting image.
--      string dataURL
--
--  # Replays the layer snapshot and returns canvas log.
--  command snapshotCommandLog
--    parameters
--      # The id of the layer snapshot.
--      SnapshotId snapshotId
--    returns
--      # The array of canvas function calls.
--      array of object commandLog
--
--  event layerPainted
--    parameters
--      # The id of the painted layer.
--      LayerId layerId
--      # Clip rectangle.
--      DOM.Rect clip
--
--  event layerTreeDidChange
--    parameters
--      # Layer tree, absent if not in the compositing mode.
--      optional array of Layer layers
--
--# Provides access to log entries.
--domain Log
--  depends on Runtime
--  depends on Network
--
--  # Log entry.
--  type LogEntry extends object
--    properties
--      # Log entry source.
--      enum source
--        xml
--        javascript
--        network
--        storage
--        appcache
--        rendering
--        security
--        deprecation
--        worker
--        violation
--        intervention
--        recommendation
--        other
--      # Log entry severity.
--      enum level
--        verbose
--        info
--        warning
--        error
--      # Logged text.
--      string text
--      optional enum category
--        cors
--      # Timestamp when this entry was added.
--      Runtime.Timestamp timestamp
--      # URL of the resource if known.
--      optional string url
--      # Line number in the resource.
--      optional integer lineNumber
--      # JavaScript stack trace.
--      optional Runtime.StackTrace stackTrace
--      # Identifier of the network request associated with this entry.
--      optional Network.RequestId networkRequestId
--      # Identifier of the worker associated with this entry.
--      optional string workerId
--      # Call arguments.
--      optional array of Runtime.RemoteObject args
--
--  # Violation configuration setting.
--  type ViolationSetting extends object
--    properties
--      # Violation type.
--      enum name
--        longTask
--        longLayout
--        blockedEvent
--        blockedParser
--        discouragedAPIUse
--        handler
--        recurringHandler
--      # Time threshold to trigger upon.
--      number threshold
--
--  # Clears the log.
--  command clear
--
--  # Disables log domain, prevents further log entries from being reported to the client.
--  command disable
--
--  # Enables log domain, sends the entries collected so far to the client by means of the
--  # `entryAdded` notification.
--  command enable
--
--  # start violation reporting.
--  command startViolationsReport
--    parameters
--      # Configuration for violations.
--      array of ViolationSetting config
--
--  # Stop violation reporting.
--  command stopViolationsReport
--
--  # Issued when new message was logged.
--  event entryAdded
--    parameters
--      # The entry.
--      LogEntry entry
--
--experimental domain Memory
--
--  # Memory pressure level.
--  type PressureLevel extends string
--    enum
--      moderate
--      critical
--
--  # Retruns current DOM object counters.
--  command getDOMCounters
--    returns
--      integer documents
--      integer nodes
--      integer jsEventListeners
--
--  # Retruns DOM object counters after preparing renderer for leak detection.
--  command getDOMCountersForLeakDetection
--    returns
--      # DOM object counters.
--      array of DOMCounter counters
--
--  # Prepares for leak detection by terminating workers, stopping spellcheckers,
--  # dropping non-essential internal caches, running garbage collections, etc.
--  command prepareForLeakDetection
--
--  # Simulate OomIntervention by purging V8 memory.
--  command forciblyPurgeJavaScriptMemory
--
--  # Enable/disable suppressing memory pressure notifications in all processes.
--  command setPressureNotificationsSuppressed
--    parameters
--      # If true, memory pressure notifications will be suppressed.
--      boolean suppressed
--
--  # Simulate a memory pressure notification in all processes.
--  command simulatePressureNotification
--    parameters
--      # Memory pressure level of the notification.
--      PressureLevel level
--
--  # Start collecting native memory profile.
--  command startSampling
--    parameters
--      # Average number of bytes between samples.
--      optional integer samplingInterval
--      # Do not randomize intervals between samples.
--      optional boolean suppressRandomness
--
--  # Stop collecting native memory profile.
--  command stopSampling
--
--  # Retrieve native memory allocations profile
--  # collected since renderer process startup.
--  command getAllTimeSamplingProfile
--    returns
--      SamplingProfile profile
--
--  # Retrieve native memory allocations profile
--  # collected since browser process startup.
--  command getBrowserSamplingProfile
--    returns
--      SamplingProfile profile
--
--  # Retrieve native memory allocations profile collected since last
--  # `startSampling` call.
--  command getSamplingProfile
--    returns
--      SamplingProfile profile
--
--  # Heap profile sample.
--  type SamplingProfileNode extends object
--    properties
--      # Size of the sampled allocation.
--      number size
--      # Total bytes attributed to this sample.
--      number total
--      # Execution stack at the point of allocation.
--      array of string stack
--
--  # Array of heap profile samples.
--  type SamplingProfile extends object
--    properties
--      array of SamplingProfileNode samples
--      array of Module modules
--
--  # Executable module information
--  type Module extends object
--    properties
--      # Name of the module.
--      string name
--      # UUID of the module.
--      string uuid
--      # Base address where the module is loaded into memory. Encoded as a decimal
--      # or hexadecimal (0x prefixed) string.
--      string baseAddress
--      # Size of the module in bytes.
--      number size
--
--  # DOM object counter data.
--  type DOMCounter extends object
--    properties
--      # Object name. Note: object names should be presumed volatile and clients should not expect
--      # the returned names to be consistent across runs.
--      string name
--      # Object count.
--      integer count
--
--# Network domain allows tracking network activities of the page. It exposes information about http,
--# file, data and other requests and responses, their headers, bodies, timing, etc.
--domain Network
--  depends on Debugger
--  depends on Runtime
--  depends on Security
--
--  # Resource type as it was perceived by the rendering engine.
--  type ResourceType extends string
--    enum
--      Document
--      Stylesheet
--      Image
--      Media
--      Font
--      Script
--      TextTrack
--      XHR
--      Fetch
--      Prefetch
--      EventSource
--      WebSocket
--      Manifest
--      SignedExchange
--      Ping
--      CSPViolationReport
--      Preflight
--      FedCM
--      Other
--
--  # Unique loader identifier.
--  type LoaderId extends string
--
--  # Unique network request identifier.
--  # Note that this does not identify individual HTTP requests that are part of
--  # a network request.
--  type RequestId extends string
--
--  # Unique intercepted request identifier.
--  type InterceptionId extends string
--
--  # Network level fetch failure reason.
--  type ErrorReason extends string
--    enum
--      Failed
--      Aborted
--      TimedOut
--      AccessDenied
--      ConnectionClosed
--      ConnectionReset
--      ConnectionRefused
--      ConnectionAborted
--      ConnectionFailed
--      NameNotResolved
--      InternetDisconnected
--      AddressUnreachable
--      BlockedByClient
--      BlockedByResponse
--
--  # UTC time in seconds, counted from January 1, 1970.
--  type TimeSinceEpoch extends number
--
--  # Monotonically increasing time in seconds since an arbitrary point in the past.
--  type MonotonicTime extends number
--
--  # Request / response headers as keys / values of JSON object.
--  type Headers extends object
--
--  # The underlying connection technology that the browser is supposedly using.
--  type ConnectionType extends string
--    enum
--      none
--      cellular2g
--      cellular3g
--      cellular4g
--      bluetooth
--      ethernet
--      wifi
--      wimax
--      other
--
--  # Represents the cookie's 'SameSite' status:
--  # https://tools.ietf.org/html/draft-west-first-party-cookies
--  type CookieSameSite extends string
--    enum
--      Strict
--      Lax
--      None
--
--  # Represents the cookie's 'Priority' status:
--  # https://tools.ietf.org/html/draft-west-cookie-priority-00
--  experimental type CookiePriority extends string
--    enum
--      Low
--      Medium
--      High
--
--  # Represents the source scheme of the origin that originally set the cookie.
--  # A value of "Unset" allows protocol clients to emulate legacy cookie scope for the scheme.
--  # This is a temporary ability and it will be removed in the future.
--  experimental type CookieSourceScheme extends string
--    enum
--      Unset
--      NonSecure
--      Secure
--
--  # Timing information for the request.
--  type ResourceTiming extends object
--    properties
--      # Timing's requestTime is a baseline in seconds, while the other numbers are ticks in
--      # milliseconds relatively to this requestTime.
--      number requestTime
--      # Started resolving proxy.
--      number proxyStart
--      # Finished resolving proxy.
--      number proxyEnd
--      # Started DNS address resolve.
--      number dnsStart
--      # Finished DNS address resolve.
--      number dnsEnd
--      # Started connecting to the remote host.
--      number connectStart
--      # Connected to the remote host.
--      number connectEnd
--      # Started SSL handshake.
--      number sslStart
--      # Finished SSL handshake.
--      number sslEnd
--      # Started running ServiceWorker.
--      experimental number workerStart
--      # Finished Starting ServiceWorker.
--      experimental number workerReady
--      # Started fetch event.
--      experimental number workerFetchStart
--      # Settled fetch event respondWith promise.
--      experimental number workerRespondWithSettled
--      # Started ServiceWorker static routing source evaluation.
--      experimental optional number workerRouterEvaluationStart
--      # Started cache lookup when the source was evaluated to `cache`.
--      experimental optional number workerCacheLookupStart
--      # Started sending request.
--      number sendStart
--      # Finished sending request.
--      number sendEnd
--      # Time the server started pushing request.
--      experimental number pushStart
--      # Time the server finished pushing request.
--      experimental number pushEnd
--      # Started receiving response headers.
--      experimental number receiveHeadersStart
--      # Finished receiving response headers.
--      number receiveHeadersEnd
--
--  # Loading priority of a resource request.
--  type ResourcePriority extends string
--    enum
--      VeryLow
--      Low
--      Medium
--      High
--      VeryHigh
--
--  # Post data entry for HTTP request
--  type PostDataEntry extends object
--    properties
--      optional binary bytes
--
--  # HTTP request data.
--  type Request extends object
--    properties
--      # Request URL (without fragment).
--      string url
--      # Fragment of the requested URL starting with hash, if present.
--      optional string urlFragment
--      # HTTP request method.
--      string method
--      # HTTP request headers.
--      Headers headers
--      # HTTP POST request data.
--      # Use postDataEntries instead.
--      deprecated optional string postData
--      # True when the request has POST data. Note that postData might still be omitted when this flag is true when the data is too long.
--      optional boolean hasPostData
--      # Request body elements (post data broken into individual entries).
--      experimental optional array of PostDataEntry postDataEntries
--      # The mixed content type of the request.
--      optional Security.MixedContentType mixedContentType
--      # Priority of the resource request at the time request is sent.
--      ResourcePriority initialPriority
--      # The referrer policy of the request, as defined in https://www.w3.org/TR/referrer-policy/
--      enum referrerPolicy
--        unsafe-url
--        no-referrer-when-downgrade
--        no-referrer
--        origin
--        origin-when-cross-origin
--        same-origin
--        strict-origin
--        strict-origin-when-cross-origin
--      # Whether is loaded via link preload.
--      optional boolean isLinkPreload
--      # Set for requests when the TrustToken API is used. Contains the parameters
--      # passed by the developer (e.g. via "fetch") as understood by the backend.
--      experimental optional TrustTokenParams trustTokenParams
--      # True if this resource request is considered to be the 'same site' as the
--      # request corresponding to the main frame.
--      experimental optional boolean isSameSite
--
--  # Details of a signed certificate timestamp (SCT).
--  type SignedCertificateTimestamp extends object
--    properties
--      # Validation status.
--      string status
--      # Origin.
--      string origin
--      # Log name / description.
--      string logDescription
--      # Log ID.
--      string logId
--      # Issuance date. Unlike TimeSinceEpoch, this contains the number of
--      # milliseconds since January 1, 1970, UTC, not the number of seconds.
--      number timestamp
--      # Hash algorithm.
--      string hashAlgorithm
--      # Signature algorithm.
--      string signatureAlgorithm
--      # Signature data.
--      string signatureData
--
--  # Security details about a request.
--  type SecurityDetails extends object
--    properties
--      # Protocol name (e.g. "TLS 1.2" or "QUIC").
--      string protocol
--      # Key Exchange used by the connection, or the empty string if not applicable.
--      string keyExchange
--      # (EC)DH group used by the connection, if applicable.
--      optional string keyExchangeGroup
--      # Cipher name.
--      string cipher
--      # TLS MAC. Note that AEAD ciphers do not have separate MACs.
--      optional string mac
--      # Certificate ID value.
--      Security.CertificateId certificateId
--      # Certificate subject name.
--      string subjectName
--      # Subject Alternative Name (SAN) DNS names and IP addresses.
--      array of string sanList
--      # Name of the issuing CA.
--      string issuer
--      # Certificate valid from date.
--      TimeSinceEpoch validFrom
--      # Certificate valid to (expiration) date
--      TimeSinceEpoch validTo
--      # List of signed certificate timestamps (SCTs).
--      array of SignedCertificateTimestamp signedCertificateTimestampList
--      # Whether the request complied with Certificate Transparency policy
--      CertificateTransparencyCompliance certificateTransparencyCompliance
--      # The signature algorithm used by the server in the TLS server signature,
--      # represented as a TLS SignatureScheme code point. Omitted if not
--      # applicable or not known.
--      optional integer serverSignatureAlgorithm
--      # Whether the connection used Encrypted ClientHello
--      boolean encryptedClientHello
--
--  # Whether the request complied with Certificate Transparency policy.
--  type CertificateTransparencyCompliance extends string
--    enum
--      unknown
--      not-compliant
--      compliant
--
--  # The reason why request was blocked.
--  type BlockedReason extends string
--    enum
--      other
--      csp
--      mixed-content
--      origin
--      inspector
--      integrity
--      subresource-filter
--      content-type
--      coep-frame-resource-needs-coep-header
--      coop-sandboxed-iframe-cannot-navigate-to-coop-page
--      corp-not-same-origin
--      corp-not-same-origin-after-defaulted-to-same-origin-by-coep
--      corp-not-same-origin-after-defaulted-to-same-origin-by-dip
--      corp-not-same-origin-after-defaulted-to-same-origin-by-coep-and-dip
--      corp-not-same-site
--      sri-message-signature-mismatch
--
--  # The reason why request was blocked.
--  type CorsError extends string
--    enum
--      DisallowedByMode
--      InvalidResponse
--      WildcardOriginNotAllowed
--      MissingAllowOriginHeader
--      MultipleAllowOriginValues
--      InvalidAllowOriginValue
--      AllowOriginMismatch
--      InvalidAllowCredentials
--      CorsDisabledScheme
--      PreflightInvalidStatus
--      PreflightDisallowedRedirect
--      PreflightWildcardOriginNotAllowed
--      PreflightMissingAllowOriginHeader
--      PreflightMultipleAllowOriginValues
--      PreflightInvalidAllowOriginValue
--      PreflightAllowOriginMismatch
--      PreflightInvalidAllowCredentials
--      # TODO(https://crbug.com/1263483): Remove this once frontend code does
--      # not reference it anymore.
--      PreflightMissingAllowExternal
--      # TODO(https://crbug.com/1263483): Remove this once frontend code does
--      # not reference it anymore.
--      PreflightInvalidAllowExternal
--      PreflightMissingAllowPrivateNetwork
--      PreflightInvalidAllowPrivateNetwork
--      InvalidAllowMethodsPreflightResponse
--      InvalidAllowHeadersPreflightResponse
--      MethodDisallowedByPreflightResponse
--      HeaderDisallowedByPreflightResponse
--      RedirectContainsCredentials
--      # Request was a private network request initiated by a non-secure context.
--      InsecurePrivateNetwork
--      # Request carried a target IP address space property that did not match
--      # the target resource's address space.
--      InvalidPrivateNetworkAccess
--      # Request was a private network request yet did not carry a target IP
--      # address space.
--      UnexpectedPrivateNetworkAccess
--      NoCorsRedirectModeNotFollow
--      # Request was a private network request and needed user permission yet did
--      # not carry `Private-Network-Access-Id` in the preflight response.
--      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
--      PreflightMissingPrivateNetworkAccessId
--      # Request was a private network request and needed user permission yet did
--      # not carry `Private-Network-Access-Name` in the preflight response.
--      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
--      PreflightMissingPrivateNetworkAccessName
--      # Request was a private network request and needed user permission yet not
--      # able to request for permission.
--      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
--      PrivateNetworkAccessPermissionUnavailable
--      # Request was a private network request and is denied by user permission.
--      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
--      PrivateNetworkAccessPermissionDenied
--      # Request was a local network request and is denied by user permission.
--      # https://wicg.github.io/local-network-access/
--      LocalNetworkAccessPermissionDenied
--
--  type CorsErrorStatus extends object
--    properties
--      CorsError corsError
--      string failedParameter
--
--  # Source of serviceworker response.
--  type ServiceWorkerResponseSource extends string
--    enum
--      cache-storage
--      http-cache
--      fallback-code
--      network
--
--  # Determines what type of Trust Token operation is executed and
--  # depending on the type, some additional parameters. The values
--  # are specified in third_party/blink/renderer/core/fetch/trust_token.idl.
--  experimental type TrustTokenParams extends object
--    properties
--      TrustTokenOperationType operation
--
--      # Only set for "token-redemption" operation and determine whether
--      # to request a fresh SRR or use a still valid cached SRR.
--      enum refreshPolicy
--        UseCached
--        Refresh
--
--      # Origins of issuers from whom to request tokens or redemption
--      # records.
--      optional array of string issuers
--
--  experimental type TrustTokenOperationType extends string
--    enum
--      # Type "token-request" in the Trust Token API.
--      Issuance
--      # Type "token-redemption" in the Trust Token API.
--      Redemption
--      # Type "send-redemption-record" in the Trust Token API.
--      Signing
--
--  # The reason why Chrome uses a specific transport protocol for HTTP semantics.
--  experimental type AlternateProtocolUsage extends string
--    enum
--      # Alternate Protocol was used without racing a normal connection.
--      alternativeJobWonWithoutRace
--      # Alternate Protocol was used by winning a race with a normal connection.
--      alternativeJobWonRace
--      # Alternate Protocol was not used by losing a race with a normal connection.
--      mainJobWonRace
--      # Alternate Protocol was not used because no Alternate-Protocol information
--      # was available when the request was issued, but an Alternate-Protocol header
--      # was present in the response.
--      mappingMissing
--      # Alternate Protocol was not used because it was marked broken.
--      broken
--      # HTTPS DNS protocol upgrade job was used without racing with a normal
--      # connection and an Alternate Protocol job.
--      dnsAlpnH3JobWonWithoutRace
--      # HTTPS DNS protocol upgrade job won a race with a normal connection and
--      # an Alternate Protocol job.
--      dnsAlpnH3JobWonRace
--      # This value is used when the reason is unknown.
--      unspecifiedReason
--
--  # Source of service worker router.
--  type ServiceWorkerRouterSource extends string
--    enum
--      network
--      cache
--      fetch-event
--      race-network-and-fetch-handler
--      race-network-and-cache
--
--  experimental type ServiceWorkerRouterInfo extends object
--    properties
--      # ID of the rule matched. If there is a matched rule, this field will
--      # be set, otherwiser no value will be set.
--      optional integer ruleIdMatched
--      # The router source of the matched rule. If there is a matched rule, this
--      # field will be set, otherwise no value will be set.
--      optional ServiceWorkerRouterSource matchedSourceType
--      # The actual router source used.
--      optional ServiceWorkerRouterSource actualSourceType
--
--  # HTTP response data.
--  type Response extends object
--    properties
--      # Response URL. This URL can be different from CachedResource.url in case of redirect.
--      string url
--      # HTTP response status code.
--      integer status
--      # HTTP response status text.
--      string statusText
--      # HTTP response headers.
--      Headers headers
--      # HTTP response headers text. This has been replaced by the headers in Network.responseReceivedExtraInfo.
--      deprecated optional string headersText
--      # Resource mimeType as determined by the browser.
--      string mimeType
--      # Resource charset as determined by the browser (if applicable).
--      string charset
--      # Refined HTTP request headers that were actually transmitted over the network.
--      optional Headers requestHeaders
--      # HTTP request headers text. This has been replaced by the headers in Network.requestWillBeSentExtraInfo.
--      deprecated optional string requestHeadersText
--      # Specifies whether physical connection was actually reused for this request.
--      boolean connectionReused
--      # Physical connection id that was actually used for this request.
--      number connectionId
--      # Remote IP address.
--      optional string remoteIPAddress
--      # Remote port.
--      optional integer remotePort
--      # Specifies that the request was served from the disk cache.
--      optional boolean fromDiskCache
--      # Specifies that the request was served from the ServiceWorker.
--      optional boolean fromServiceWorker
--      # Specifies that the request was served from the prefetch cache.
--      optional boolean fromPrefetchCache
--      # Specifies that the request was served from the prefetch cache.
--      optional boolean fromEarlyHints
--      # Information about how ServiceWorker Static Router API was used. If this
--      # field is set with `matchedSourceType` field, a matching rule is found.
--      # If this field is set without `matchedSource`, no matching rule is found.
--      # Otherwise, the API is not used.
--      experimental optional ServiceWorkerRouterInfo serviceWorkerRouterInfo
--      # Total number of bytes received for this request so far.
--      number encodedDataLength
--      # Timing information for the given request.
--      optional ResourceTiming timing
--      # Response source of response from ServiceWorker.
--      optional ServiceWorkerResponseSource serviceWorkerResponseSource
--      # The time at which the returned response was generated.
--      optional TimeSinceEpoch responseTime
--      # Cache Storage Cache Name.
--      optional string cacheStorageCacheName
--      # Protocol used to fetch this request.
--      optional string protocol
--      # The reason why Chrome uses a specific transport protocol for HTTP semantics.
--      experimental optional AlternateProtocolUsage alternateProtocolUsage
--      # Security state of the request resource.
--      Security.SecurityState securityState
--      # Security details for the request.
--      optional SecurityDetails securityDetails
--      # Indicates whether the request was sent through IP Protection proxies. If
--      # set to true, the request used the IP Protection privacy feature.
--      experimental optional boolean isIpProtectionUsed
--
--  # WebSocket request data.
--  type WebSocketRequest extends object
--    properties
--      # HTTP request headers.
--      Headers headers
--
--  # WebSocket response data.
--  type WebSocketResponse extends object
--    properties
--      # HTTP response status code.
--      integer status
--      # HTTP response status text.
--      string statusText
--      # HTTP response headers.
--      Headers headers
--      # HTTP response headers text.
--      optional string headersText
--      # HTTP request headers.
--      optional Headers requestHeaders
--      # HTTP request headers text.
--      optional string requestHeadersText
--
--  # WebSocket message data. This represents an entire WebSocket message, not just a fragmented frame as the name suggests.
--  type WebSocketFrame extends object
--    properties
--      # WebSocket message opcode.
--      number opcode
--      # WebSocket message mask.
--      boolean mask
--      # WebSocket message payload data.
--      # If the opcode is 1, this is a text message and payloadData is a UTF-8 string.
--      # If the opcode isn't 1, then payloadData is a base64 encoded string representing binary data.
--      string payloadData
--
--  # Information about the cached resource.
--  type CachedResource extends object
--    properties
--      # Resource URL. This is the url of the original network request.
--      string url
--      # Type of this resource.
--      ResourceType type
--      # Cached response data.
--      optional Response response
--      # Cached response body size.
--      number bodySize
--
--  # Information about the request initiator.
--  type Initiator extends object
--    properties
--      # Type of this initiator.
--      enum type
--        parser
--        script
--        preload
--        SignedExchange
--        preflight
--        other
--      # Initiator JavaScript stack trace, set for Script only.
--      # Requires the Debugger domain to be enabled.
--      optional Runtime.StackTrace stack
--      # Initiator URL, set for Parser type or for Script type (when script is importing module) or for SignedExchange type.
--      optional string url
--      # Initiator line number, set for Parser type or for Script type (when script is importing
--      # module) (0-based).
--      optional number lineNumber
--      # Initiator column number, set for Parser type or for Script type (when script is importing
--      # module) (0-based).
--      optional number columnNumber
--      # Set if another request triggered this request (e.g. preflight).
--      optional RequestId requestId
--
--  # cookiePartitionKey object
--  # The representation of the components of the key that are created by the cookiePartitionKey class contained in net/cookies/cookie_partition_key.h.
--  experimental type CookiePartitionKey extends object
--    properties
--      # The site of the top-level URL the browser was visiting at the start
--      # of the request to the endpoint that set the cookie.
--      string topLevelSite
--      # Indicates if the cookie has any ancestors that are cross-site to the topLevelSite.
--      boolean hasCrossSiteAncestor
--
--  # Cookie object
--  type Cookie extends object
--    properties
--      # Cookie name.
--      string name
--      # Cookie value.
--      string value
--      # Cookie domain.
--      string domain
--      # Cookie path.
--      string path
--      # Cookie expiration date as the number of seconds since the UNIX epoch.
--      number expires
--      # Cookie size.
--      integer size
--      # True if cookie is http-only.
--      boolean httpOnly
--      # True if cookie is secure.
--      boolean secure
--      # True in case of session cookie.
--      boolean session
--      # Cookie SameSite type.
--      optional CookieSameSite sameSite
--      # Cookie Priority
--      experimental CookiePriority priority
--      # True if cookie is SameParty.
--      experimental deprecated boolean sameParty
--      # Cookie source scheme type.
--      experimental CookieSourceScheme sourceScheme
--      # Cookie source port. Valid values are {-1, [1, 65535]}, -1 indicates an unspecified port.
--      # An unspecified port value allows protocol clients to emulate legacy cookie scope for the port.
--      # This is a temporary ability and it will be removed in the future.
--      experimental integer sourcePort
--      # Cookie partition key.
--      experimental optional CookiePartitionKey partitionKey
--      # True if cookie partition key is opaque.
--      experimental optional boolean partitionKeyOpaque
--
--  # Types of reasons why a cookie may not be stored from a response.
--  experimental type SetCookieBlockedReason extends string
--    enum
--      # The cookie had the "Secure" attribute but was not received over a secure connection.
--      SecureOnly
--      # The cookie had the "SameSite=Strict" attribute but came from a cross-origin response.
--      # This includes navigation requests initiated by other origins.
--      SameSiteStrict
--      # The cookie had the "SameSite=Lax" attribute but came from a cross-origin response.
--      SameSiteLax
--      # The cookie didn't specify a "SameSite" attribute and was defaulted to "SameSite=Lax" and
--      # broke the same rules specified in the SameSiteLax value.
--      SameSiteUnspecifiedTreatedAsLax
--      # The cookie had the "SameSite=None" attribute but did not specify the "Secure" attribute,
--      # which is required in order to use "SameSite=None".
--      SameSiteNoneInsecure
--      # The cookie was not stored due to user preferences.
--      UserPreferences
--      # The cookie was blocked due to third-party cookie phaseout.
--      ThirdPartyPhaseout
--      # The cookie was blocked by third-party cookie blocking between sites in
--      # the same First-Party Set.
--      ThirdPartyBlockedInFirstPartySet
--      # The syntax of the Set-Cookie header of the response was invalid.
--      SyntaxError
--      # The scheme of the connection is not allowed to store cookies.
--      SchemeNotSupported
--      # The cookie was not sent over a secure connection and would have overwritten a cookie with
--      # the Secure attribute.
--      OverwriteSecure
--      # The cookie's domain attribute was invalid with regards to the current host url.
--      InvalidDomain
--      # The cookie used the "__Secure-" or "__Host-" prefix in its name and broke the additional
--      # rules applied to cookies with these prefixes as defined in
--      # https://tools.ietf.org/html/draft-west-cookie-prefixes-05
--      InvalidPrefix
--      # An unknown error was encountered when trying to store this cookie.
--      UnknownError
--      # The cookie had the "SameSite=Strict" attribute but came from a response
--      # with the same registrable domain but a different scheme.
--      # This includes navigation requests initiated by other origins.
--      # This is the "Schemeful Same-Site" version of the blocked reason.
--      SchemefulSameSiteStrict
--      # The cookie had the "SameSite=Lax" attribute but came from a response
--      # with the same registrable domain but a different scheme.
--      # This is the "Schemeful Same-Site" version of the blocked reason.
--      SchemefulSameSiteLax
--      # The cookie didn't specify a "SameSite" attribute and was defaulted to
--      # "SameSite=Lax" and broke the same rules specified in the SchemefulSameSiteLax
--      # value.
--      # This is the "Schemeful Same-Site" version of the blocked reason.
--      SchemefulSameSiteUnspecifiedTreatedAsLax
--      # The cookie had the "SameParty" attribute but came from a cross-party response.
--      SamePartyFromCrossPartyContext
--      # The cookie had the "SameParty" attribute but did not specify the "Secure" attribute
--      # (which is required in order to use "SameParty"); or specified the "SameSite=Strict"
--      # attribute (which is forbidden when using "SameParty").
--      SamePartyConflictsWithOtherAttributes
--      # The cookie's name/value pair size exceeded the size limit defined in
--      # RFC6265bis.
--      NameValuePairExceedsMaxSize
--      # The cookie contained a forbidden ASCII control character, or the tab
--      # character if it appears in the middle of the cookie name, value, an
--      # attribute name, or an attribute value.
--      DisallowedCharacter
--      # Cookie contains no content or only whitespace.
--      NoCookieContent
--
--  # Types of reasons why a cookie may not be sent with a request.
--  experimental type CookieBlockedReason extends string
--    enum
--      # The cookie had the "Secure" attribute and the connection was not secure.
--      SecureOnly
--      # The cookie's path was not within the request url's path.
--      NotOnPath
--      # The cookie's domain is not configured to match the request url's domain, even though they
--      # share a common TLD+1 (TLD+1 of foo.bar.example.com is example.com).
--      DomainMismatch
--      # The cookie had the "SameSite=Strict" attribute and the request was made on on a different
--      # site. This includes navigation requests initiated by other sites.
--      SameSiteStrict
--      # The cookie had the "SameSite=Lax" attribute and the request was made on a different site.
--      # This does not include navigation requests initiated by other sites.
--      SameSiteLax
--      # The cookie didn't specify a SameSite attribute when it was stored and was defaulted to
--      # "SameSite=Lax" and broke the same rules specified in the SameSiteLax value. The cookie had
--      # to have been set with "SameSite=None" to enable third-party usage.
--      SameSiteUnspecifiedTreatedAsLax
--      # The cookie had the "SameSite=None" attribute and the connection was not secure. Cookies
--      # without SameSite restrictions must be sent over a secure connection.
--      SameSiteNoneInsecure
--      # The cookie was not sent due to user preferences.
--      UserPreferences
--      # The cookie was blocked due to third-party cookie phaseout.
--      ThirdPartyPhaseout
--      # The cookie was blocked by third-party cookie blocking between sites in
--      # the same First-Party Set.
--      ThirdPartyBlockedInFirstPartySet
--      # An unknown error was encountered when trying to send this cookie.
--      UnknownError
--      # The cookie had the "SameSite=Strict" attribute but came from a response
--      # with the same registrable domain but a different scheme.
--      # This includes navigation requests initiated by other origins.
--      # This is the "Schemeful Same-Site" version of the blocked reason.
--      SchemefulSameSiteStrict
--      # The cookie had the "SameSite=Lax" attribute but came from a response
--      # with the same registrable domain but a different scheme.
--      # This is the "Schemeful Same-Site" version of the blocked reason.
--      SchemefulSameSiteLax
--      # The cookie didn't specify a "SameSite" attribute and was defaulted to
--      # "SameSite=Lax" and broke the same rules specified in the SchemefulSameSiteLax
--      # value.
--      # This is the "Schemeful Same-Site" version of the blocked reason.
--      SchemefulSameSiteUnspecifiedTreatedAsLax
--      # The cookie had the "SameParty" attribute and the request was made from a cross-party context.
--      SamePartyFromCrossPartyContext
--      # The cookie's name/value pair size exceeded the size limit defined in
--      # RFC6265bis.
--      NameValuePairExceedsMaxSize
--      # The cookie's source port value does not match the request origin's port.
--      PortMismatch
--      # The cookie's source scheme value does not match the request origin's scheme.
--      SchemeMismatch
--      # Unpartitioned cookie access from an anonymous context was blocked.
--      AnonymousContext
--
--  # Types of reasons why a cookie should have been blocked by 3PCD but is exempted for the request.
--  experimental type CookieExemptionReason extends string
--    enum
--      # The default value. Cookie with this reason could either be blocked or included.
--      None
--      # The cookie should have been blocked by 3PCD but is exempted by explicit user setting.
--      UserSetting
--      # The cookie should have been blocked by 3PCD but is exempted by metadata mitigation.
--      TPCDMetadata
--      # The cookie should have been blocked by 3PCD but is exempted by Deprecation Trial mitigation.
--      TPCDDeprecationTrial
--      # The cookie should have been blocked by 3PCD but is exempted by Top-level Deprecation Trial mitigation.
--      TopLevelTPCDDeprecationTrial
--      # The cookie should have been blocked by 3PCD but is exempted by heuristics mitigation.
--      TPCDHeuristics
--      # The cookie should have been blocked by 3PCD but is exempted by Enterprise Policy.
--      EnterprisePolicy
--      # The cookie should have been blocked by 3PCD but is exempted by Storage Access API.
--      StorageAccess
--      # The cookie should have been blocked by 3PCD but is exempted by Top-level Storage Access API.
--      TopLevelStorageAccess
--      # The cookie should have been blocked by 3PCD but is exempted by the first-party URL scheme.
--      Scheme
--      # The cookie was included due to the 'allow-same-site-none-cookies' value being set in the sandboxing policy.
--      SameSiteNoneCookiesInSandbox
--
--  # A cookie which was not stored from a response with the corresponding reason.
--  experimental type BlockedSetCookieWithReason extends object
--    properties
--      # The reason(s) this cookie was blocked.
--      array of SetCookieBlockedReason blockedReasons
--      # The string representing this individual cookie as it would appear in the header.
--      # This is not the entire "cookie" or "set-cookie" header which could have multiple cookies.
--      string cookieLine
--      # The cookie object which represents the cookie which was not stored. It is optional because
--      # sometimes complete cookie information is not available, such as in the case of parsing
--      # errors.
--      optional Cookie cookie
--
--  # A cookie should have been blocked by 3PCD but is exempted and stored from a response with the
--  # corresponding reason. A cookie could only have at most one exemption reason.
--  experimental type ExemptedSetCookieWithReason extends object
--    properties
--      # The reason the cookie was exempted.
--      CookieExemptionReason exemptionReason
--      # The string representing this individual cookie as it would appear in the header.
--      string cookieLine
--      # The cookie object representing the cookie.
--      Cookie cookie
--
--  # A cookie associated with the request which may or may not be sent with it.
--  # Includes the cookies itself and reasons for blocking or exemption.
--  experimental type AssociatedCookie extends object
--    properties
--      # The cookie object representing the cookie which was not sent.
--      Cookie cookie
--      # The reason(s) the cookie was blocked. If empty means the cookie is included.
--      array of CookieBlockedReason blockedReasons
--      # The reason the cookie should have been blocked by 3PCD but is exempted. A cookie could
--      # only have at most one exemption reason.
--      optional CookieExemptionReason exemptionReason
--
--  # Cookie parameter object
--  type CookieParam extends object
--    properties
--      # Cookie name.
--      string name
--      # Cookie value.
--      string value
--      # The request-URI to associate with the setting of the cookie. This value can affect the
--      # default domain, path, source port, and source scheme values of the created cookie.
--      optional string url
--      # Cookie domain.
--      optional string domain
--      # Cookie path.
--      optional string path
--      # True if cookie is secure.
--      optional boolean secure
--      # True if cookie is http-only.
--      optional boolean httpOnly
--      # Cookie SameSite type.
--      optional CookieSameSite sameSite
--      # Cookie expiration date, session cookie if not set
--      optional TimeSinceEpoch expires
--      # Cookie Priority.
--      experimental optional CookiePriority priority
--      # True if cookie is SameParty.
--      experimental optional boolean sameParty
--      # Cookie source scheme type.
--      experimental optional CookieSourceScheme sourceScheme
--      # Cookie source port. Valid values are {-1, [1, 65535]}, -1 indicates an unspecified port.
--      # An unspecified port value allows protocol clients to emulate legacy cookie scope for the port.
--      # This is a temporary ability and it will be removed in the future.
--      experimental optional integer sourcePort
--      # Cookie partition key. If not set, the cookie will be set as not partitioned.
--      experimental optional CookiePartitionKey partitionKey
--
--  # Authorization challenge for HTTP status code 401 or 407.
--  experimental type AuthChallenge extends object
--    properties
--      # Source of the authentication challenge.
--      optional enum source
--        Server
--        Proxy
--      # Origin of the challenger.
--      string origin
--      # The authentication scheme used, such as basic or digest
--      string scheme
--      # The realm of the challenge. May be empty.
--      string realm
--
--  # Response to an AuthChallenge.
--  experimental type AuthChallengeResponse extends object
--    properties
--      # The decision on what to do in response to the authorization challenge.  Default means
--      # deferring to the default behavior of the net stack, which will likely either the Cancel
--      # authentication or display a popup dialog box.
--      enum response
--        Default
--        CancelAuth
--        ProvideCredentials
--      # The username to provide, possibly empty. Should only be set if response is
--      # ProvideCredentials.
--      optional string username
--      # The password to provide, possibly empty. Should only be set if response is
--      # ProvideCredentials.
--      optional string password
--
--  # Stages of the interception to begin intercepting. Request will intercept before the request is
--  # sent. Response will intercept after the response is received.
--  experimental type InterceptionStage extends string
--    enum
--      Request
--      HeadersReceived
--
--  # Request pattern for interception.
--  experimental type RequestPattern extends object
--    properties
--      # Wildcards (`'*'` -> zero or more, `'?'` -> exactly one) are allowed. Escape character is
--      # backslash. Omitting is equivalent to `"*"`.
--      optional string urlPattern
--      # If set, only requests for matching resource types will be intercepted.
--      optional ResourceType resourceType
--      # Stage at which to begin intercepting requests. Default is Request.
--      optional InterceptionStage interceptionStage
--
--  # Information about a signed exchange signature.
--  # https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#rfc.section.3.1
--  experimental type SignedExchangeSignature extends object
--    properties
--      # Signed exchange signature label.
--      string label
--      # The hex string of signed exchange signature.
--      string signature
--      # Signed exchange signature integrity.
--      string integrity
--      # Signed exchange signature cert Url.
--      optional string certUrl
--      # The hex string of signed exchange signature cert sha256.
--      optional string certSha256
--      # Signed exchange signature validity Url.
--      string validityUrl
--      # Signed exchange signature date.
--      integer date
--      # Signed exchange signature expires.
--      integer expires
--      # The encoded certificates.
--      optional array of string certificates
--
--  # Information about a signed exchange header.
--  # https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#cbor-representation
--  experimental type SignedExchangeHeader extends object
--    properties
--      # Signed exchange request URL.
--      string requestUrl
--      # Signed exchange response code.
--      integer responseCode
--      # Signed exchange response headers.
--      Headers responseHeaders
--      # Signed exchange response signature.
--      array of SignedExchangeSignature signatures
--      # Signed exchange header integrity hash in the form of `sha256-<base64-hash-value>`.
--      string headerIntegrity
--
--  # Field type for a signed exchange related error.
--  experimental type SignedExchangeErrorField extends string
--    enum
--      signatureSig
--      signatureIntegrity
--      signatureCertUrl
--      signatureCertSha256
--      signatureValidityUrl
--      signatureTimestamps
--
--  # Information about a signed exchange response.
--  experimental type SignedExchangeError extends object
--    properties
--      # Error message.
--      string message
--      # The index of the signature which caused the error.
--      optional integer signatureIndex
--      # The field which caused the error.
--      optional SignedExchangeErrorField errorField
--
--  # Information about a signed exchange response.
--  experimental type SignedExchangeInfo extends object
--    properties
--      # The outer response of signed HTTP exchange which was received from network.
--      Response outerResponse
--      # Whether network response for the signed exchange was accompanied by
--      # extra headers.
--      boolean hasExtraInfo
--      # Information about the signed exchange header.
--      optional SignedExchangeHeader header
--      # Security details for the signed exchange header.
--      optional SecurityDetails securityDetails
--      # Errors occurred while handling the signed exchange.
--      optional array of SignedExchangeError errors
--
--  # List of content encodings supported by the backend.
--  experimental type ContentEncoding extends string
--    enum
--      deflate
--      gzip
--      br
--      zstd
--
--  # Sets a list of content encodings that will be accepted. Empty list means no encoding is accepted.
--  experimental command setAcceptedEncodings
--    parameters
--      # List of accepted content encodings.
--      array of ContentEncoding encodings
--
--  # Clears accepted encodings set by setAcceptedEncodings
--  experimental command clearAcceptedEncodingsOverride
--
--  # Tells whether clearing browser cache is supported.
--  deprecated command canClearBrowserCache
--    returns
--      # True if browser cache can be cleared.
--      boolean result
--
--  # Tells whether clearing browser cookies is supported.
--  deprecated command canClearBrowserCookies
--    returns
--      # True if browser cookies can be cleared.
--      boolean result
--
--  # Tells whether emulation of network conditions is supported.
--  deprecated command canEmulateNetworkConditions
--    returns
--      # True if emulation of network conditions is supported.
--      boolean result
--
--  # Clears browser cache.
--  command clearBrowserCache
--
--  # Clears browser cookies.
--  command clearBrowserCookies
--
--  # Response to Network.requestIntercepted which either modifies the request to continue with any
--  # modifications, or blocks it, or completes it with the provided response bytes. If a network
--  # fetch occurs as a result which encounters a redirect an additional Network.requestIntercepted
--  # event will be sent with the same InterceptionId.
--  # Deprecated, use Fetch.continueRequest, Fetch.fulfillRequest and Fetch.failRequest instead.
--  experimental deprecated command continueInterceptedRequest
--    parameters
--      InterceptionId interceptionId
--      # If set this causes the request to fail with the given reason. Passing `Aborted` for requests
--      # marked with `isNavigationRequest` also cancels the navigation. Must not be set in response
--      # to an authChallenge.
--      optional ErrorReason errorReason
--      # If set the requests completes using with the provided base64 encoded raw response, including
--      # HTTP status line and headers etc... Must not be set in response to an authChallenge.
--      optional binary rawResponse
--      # If set the request url will be modified in a way that's not observable by page. Must not be
--      # set in response to an authChallenge.
--      optional string url
--      # If set this allows the request method to be overridden. Must not be set in response to an
--      # authChallenge.
--      optional string method
--      # If set this allows postData to be set. Must not be set in response to an authChallenge.
--      optional string postData
--      # If set this allows the request headers to be changed. Must not be set in response to an
--      # authChallenge.
--      optional Headers headers
--      # Response to a requestIntercepted with an authChallenge. Must not be set otherwise.
--      optional AuthChallengeResponse authChallengeResponse
--
--  # Deletes browser cookies with matching name and url or domain/path/partitionKey pair.
--  command deleteCookies
--    parameters
--      # Name of the cookies to remove.
--      string name
--      # If specified, deletes all the cookies with the given name where domain and path match
--      # provided URL.
--      optional string url
--      # If specified, deletes only cookies with the exact domain.
--      optional string domain
--      # If specified, deletes only cookies with the exact path.
--      optional string path
--      # If specified, deletes only cookies with the the given name and partitionKey where
--      # all partition key attributes match the cookie partition key attribute.
--      experimental optional CookiePartitionKey partitionKey
--
--  # Disables network tracking, prevents network events from being sent to the client.
--  command disable
--
--  # Activates emulation of network conditions.
--  command emulateNetworkConditions
--    parameters
--      # True to emulate internet disconnection.
--      boolean offline
--      # Minimum latency from request sent to response headers received (ms).
--      number latency
--      # Maximal aggregated download throughput (bytes/sec). -1 disables download throttling.
--      number downloadThroughput
--      # Maximal aggregated upload throughput (bytes/sec).  -1 disables upload throttling.
--      number uploadThroughput
--      # Connection type if known.
--      optional ConnectionType connectionType
--      # WebRTC packet loss (percent, 0-100). 0 disables packet loss emulation, 100 drops all the packets.
--      experimental optional number packetLoss
--      # WebRTC packet queue length (packet). 0 removes any queue length limitations.
--      experimental optional integer packetQueueLength
--      # WebRTC packetReordering feature.
--      experimental optional boolean packetReordering
--
--  # Enables network tracking, network events will now be delivered to the client.
--  command enable
--    parameters
--      # Buffer size in bytes to use when preserving network payloads (XHRs, etc).
--      experimental optional integer maxTotalBufferSize
--      # Per-resource buffer size in bytes to use when preserving network payloads (XHRs, etc).
--      experimental optional integer maxResourceBufferSize
--      # Longest post body size (in bytes) that would be included in requestWillBeSent notification
--      optional integer maxPostDataSize
--      # Whether DirectSocket chunk send/receive events should be reported.
--      experimental optional boolean reportDirectSocketTraffic
--
--  # Returns all browser cookies. Depending on the backend support, will return detailed cookie
--  # information in the `cookies` field.
--  # Deprecated. Use Storage.getCookies instead.
--  deprecated command getAllCookies
--    returns
--      # Array of cookie objects.
--      array of Cookie cookies
--
--  # Returns the DER-encoded certificate.
--  experimental command getCertificate
--    parameters
--      # Origin to get certificate for.
--      string origin
--    returns
--      array of string tableNames
--
--  # Returns all browser cookies for the current URL. Depending on the backend support, will return
--  # detailed cookie information in the `cookies` field.
--  command getCookies
--    parameters
--      # The list of URLs for which applicable cookies will be fetched.
--      # If not specified, it's assumed to be set to the list containing
--      # the URLs of the page and all of its subframes.
--      optional array of string urls
--    returns
--      # Array of cookie objects.
--      array of Cookie cookies
--
--  # Returns content served for the given request.
--  command getResponseBody
--    parameters
--      # Identifier of the network request to get content for.
--      RequestId requestId
--    returns
--      # Response body.
--      string body
--      # True, if content was sent as base64.
--      boolean base64Encoded
--
--  # Returns post data sent with the request. Returns an error when no data was sent with the request.
--  command getRequestPostData
--    parameters
--      # Identifier of the network request to get content for.
--      RequestId requestId
--    returns
--      # Request body string, omitting files from multipart requests
--      string postData
--
--  # Returns content served for the given currently intercepted request.
--  experimental command getResponseBodyForInterception
--    parameters
--      # Identifier for the intercepted request to get body for.
--      InterceptionId interceptionId
--    returns
--      # Response body.
--      string body
--      # True, if content was sent as base64.
--      boolean base64Encoded
--
--  # Returns a handle to the stream representing the response body. Note that after this command,
--  # the intercepted request can't be continued as is -- you either need to cancel it or to provide
--  # the response body. The stream only supports sequential read, IO.read will fail if the position
--  # is specified.
--  experimental command takeResponseBodyForInterceptionAsStream
--    parameters
--      InterceptionId interceptionId
--    returns
--      IO.StreamHandle stream
--
--  # This method sends a new XMLHttpRequest which is identical to the original one. The following
--  # parameters should be identical: method, url, async, request body, extra headers, withCredentials
--  # attribute, user, password.
--  experimental command replayXHR
--    parameters
--      # Identifier of XHR to replay.
--      RequestId requestId
--
--  # Searches for given string in response content.
--  experimental command searchInResponseBody
--    parameters
--      # Identifier of the network response to search.
--      RequestId requestId
--      # String to search for.
--      string query
--      # If true, search is case sensitive.
--      optional boolean caseSensitive
--      # If true, treats string parameter as regex.
--      optional boolean isRegex
--    returns
--      # List of search matches.
--      array of Debugger.SearchMatch result
--
--  # Blocks URLs from loading.
--  experimental command setBlockedURLs
--    parameters
--      # URL patterns to block. Wildcards ('*') are allowed.
--      array of string urls
--
--  # Toggles ignoring of service worker for each request.
--  command setBypassServiceWorker
--    parameters
--      # Bypass service worker and load from network.
--      boolean bypass
--
--  # Toggles ignoring cache for each request. If `true`, cache will not be used.
--  command setCacheDisabled
--    parameters
--      # Cache disabled state.
--      boolean cacheDisabled
--
--  # Sets a cookie with the given cookie data; may overwrite equivalent cookies if they exist.
--  command setCookie
--    parameters
--      # Cookie name.
--      string name
--      # Cookie value.
--      string value
--      # The request-URI to associate with the setting of the cookie. This value can affect the
--      # default domain, path, source port, and source scheme values of the created cookie.
--      optional string url
--      # Cookie domain.
--      optional string domain
--      # Cookie path.
--      optional string path
--      # True if cookie is secure.
--      optional boolean secure
--      # True if cookie is http-only.
--      optional boolean httpOnly
--      # Cookie SameSite type.
--      optional CookieSameSite sameSite
--      # Cookie expiration date, session cookie if not set
--      optional TimeSinceEpoch expires
--      # Cookie Priority type.
--      experimental optional CookiePriority priority
--      # True if cookie is SameParty.
--      experimental optional boolean sameParty
--      # Cookie source scheme type.
--      experimental optional CookieSourceScheme sourceScheme
--      # Cookie source port. Valid values are {-1, [1, 65535]}, -1 indicates an unspecified port.
--      # An unspecified port value allows protocol clients to emulate legacy cookie scope for the port.
--      # This is a temporary ability and it will be removed in the future.
--      experimental optional integer sourcePort
--      # Cookie partition key. If not set, the cookie will be set as not partitioned.
--      experimental optional CookiePartitionKey partitionKey
--    returns
--      # Always set to true. If an error occurs, the response indicates protocol error.
--      deprecated boolean success
--
--  # Sets given cookies.
--  command setCookies
--    parameters
--      # Cookies to be set.
--      array of CookieParam cookies
--
--  # Specifies whether to always send extra HTTP headers with the requests from this page.
--  command setExtraHTTPHeaders
--    parameters
--      # Map with extra HTTP headers.
--      Headers headers
--
--  # Specifies whether to attach a page script stack id in requests
--  experimental command setAttachDebugStack
--    parameters
--      # Whether to attach a page script stack for debugging purpose.
--      boolean enabled
--
--  # Sets the requests to intercept that match the provided patterns and optionally resource types.
--  # Deprecated, please use Fetch.enable instead.
--  experimental deprecated command setRequestInterception
--    parameters
--      # Requests matching any of these patterns will be forwarded and wait for the corresponding
--      # continueInterceptedRequest call.
--      array of RequestPattern patterns
--
--  # Allows overriding user agent with the given string.
--  command setUserAgentOverride
--    redirect Emulation
--    parameters
--      # User agent to use.
--      string userAgent
--      # Browser language to emulate.
--      optional string acceptLanguage
--      # The platform navigator.platform should return.
--      optional string platform
--      # To be sent in Sec-CH-UA-* headers and returned in navigator.userAgentData
--      experimental optional Emulation.UserAgentMetadata userAgentMetadata
--
--
--  # Fired when data chunk was received over the network.
--  event dataReceived
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # Data chunk length.
--      integer dataLength
--      # Actual bytes received (might be less than dataLength for compressed encodings).
--      integer encodedDataLength
--      # Data that was received.
--      experimental optional binary data
--
--  # Enables streaming of the response for the given requestId.
--  # If enabled, the dataReceived event contains the data that was received during streaming.
--  experimental command streamResourceContent
--    parameters
--      # Identifier of the request to stream.
--      RequestId requestId
--    returns
--      # Data that has been buffered until streaming is enabled.
--      binary bufferedData
--
--  # Fired when EventSource message is received.
--  event eventSourceMessageReceived
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # Message type.
--      string eventName
--      # Message identifier.
--      string eventId
--      # Message content.
--      string data
--
--  # Fired when HTTP request has failed to load.
--  event loadingFailed
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # Resource type.
--      ResourceType type
--      # Error message. List of network errors: https://cs.chromium.org/chromium/src/net/base/net_error_list.h
--      string errorText
--      # True if loading was canceled.
--      optional boolean canceled
--      # The reason why loading was blocked, if any.
--      optional BlockedReason blockedReason
--       # The reason why loading was blocked by CORS, if any.
--      optional CorsErrorStatus corsErrorStatus
--
--  # Fired when HTTP request has finished loading.
--  event loadingFinished
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # Total number of bytes received for this request.
--      number encodedDataLength
--
--  # Details of an intercepted HTTP request, which must be either allowed, blocked, modified or
--  # mocked.
--  # Deprecated, use Fetch.requestPaused instead.
--  experimental deprecated event requestIntercepted
--    parameters
--      # Each request the page makes will have a unique id, however if any redirects are encountered
--      # while processing that fetch, they will be reported with the same id as the original fetch.
--      # Likewise if HTTP authentication is needed then the same fetch id will be used.
--      InterceptionId interceptionId
--      Request request
--      # The id of the frame that initiated the request.
--      Page.FrameId frameId
--      # How the requested resource will be used.
--      ResourceType resourceType
--      # Whether this is a navigation request, which can abort the navigation completely.
--      boolean isNavigationRequest
--      # Set if the request is a navigation that will result in a download.
--      # Only present after response is received from the server (i.e. HeadersReceived stage).
--      optional boolean isDownload
--      # Redirect location, only sent if a redirect was intercepted.
--      optional string redirectUrl
--      # Details of the Authorization Challenge encountered. If this is set then
--      # continueInterceptedRequest must contain an authChallengeResponse.
--      optional AuthChallenge authChallenge
--      # Response error if intercepted at response stage or if redirect occurred while intercepting
--      # request.
--      optional ErrorReason responseErrorReason
--      # Response code if intercepted at response stage or if redirect occurred while intercepting
--      # request or auth retry occurred.
--      optional integer responseStatusCode
--      # Response headers if intercepted at the response stage or if redirect occurred while
--      # intercepting request or auth retry occurred.
--      optional Headers responseHeaders
--      # If the intercepted request had a corresponding requestWillBeSent event fired for it, then
--      # this requestId will be the same as the requestId present in the requestWillBeSent event.
--      optional RequestId requestId
--
--  # Fired if request ended up loading from cache.
--  event requestServedFromCache
--    parameters
--      # Request identifier.
--      RequestId requestId
--
--  # Fired when page is about to send HTTP request.
--  event requestWillBeSent
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Loader identifier. Empty string if the request is fetched from worker.
--      LoaderId loaderId
--      # URL of the document this request is loaded for.
--      string documentURL
--      # Request data.
--      Request request
--      # Timestamp.
--      MonotonicTime timestamp
--      # Timestamp.
--      TimeSinceEpoch wallTime
--      # Request initiator.
--      Initiator initiator
--      # In the case that redirectResponse is populated, this flag indicates whether
--      # requestWillBeSentExtraInfo and responseReceivedExtraInfo events will be or were emitted
--      # for the request which was just redirected.
--      experimental boolean redirectHasExtraInfo
--      # Redirect response data.
--      optional Response redirectResponse
--      # Type of this resource.
--      optional ResourceType type
--      # Frame identifier.
--      optional Page.FrameId frameId
--      # Whether the request is initiated by a user gesture. Defaults to false.
--      optional boolean hasUserGesture
--
--  # Fired when resource loading priority is changed
--  experimental event resourceChangedPriority
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # New priority
--      ResourcePriority newPriority
--      # Timestamp.
--      MonotonicTime timestamp
--
--  # Fired when a signed exchange was received over the network
--  experimental event signedExchangeReceived
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Information about the signed exchange response.
--      SignedExchangeInfo info
--
--  # Fired when HTTP response is available.
--  event responseReceived
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Loader identifier. Empty string if the request is fetched from worker.
--      LoaderId loaderId
--      # Timestamp.
--      MonotonicTime timestamp
--      # Resource type.
--      ResourceType type
--      # Response data.
--      Response response
--      # Indicates whether requestWillBeSentExtraInfo and responseReceivedExtraInfo events will be
--      # or were emitted for this request.
--      experimental boolean hasExtraInfo
--      # Frame identifier.
--      optional Page.FrameId frameId
--
--  # Fired when WebSocket is closed.
--  event webSocketClosed
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--
--  # Fired upon WebSocket creation.
--  event webSocketCreated
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # WebSocket request URL.
--      string url
--      # Request initiator.
--      optional Initiator initiator
--
--  # Fired when WebSocket message error occurs.
--  event webSocketFrameError
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # WebSocket error message.
--      string errorMessage
--
--  # Fired when WebSocket message is received.
--  event webSocketFrameReceived
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # WebSocket response data.
--      WebSocketFrame response
--
--  # Fired when WebSocket message is sent.
--  event webSocketFrameSent
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # WebSocket response data.
--      WebSocketFrame response
--
--  # Fired when WebSocket handshake response becomes available.
--  event webSocketHandshakeResponseReceived
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # WebSocket response data.
--      WebSocketResponse response
--
--  # Fired when WebSocket is about to initiate handshake.
--  event webSocketWillSendHandshakeRequest
--    parameters
--      # Request identifier.
--      RequestId requestId
--      # Timestamp.
--      MonotonicTime timestamp
--      # UTC Timestamp.
--      TimeSinceEpoch wallTime
--      # WebSocket request data.
--      WebSocketRequest request
--
--  # Fired upon WebTransport creation.
--  event webTransportCreated
--    parameters
--      # WebTransport identifier.
--      RequestId transportId
--      # WebTransport request URL.
--      string url
--      # Timestamp.
--      MonotonicTime timestamp
--      # Request initiator.
--      optional Initiator initiator
--
--  # Fired when WebTransport handshake is finished.
--  event webTransportConnectionEstablished
--    parameters
--      # WebTransport identifier.
--      RequestId transportId
--      # Timestamp.
--      MonotonicTime timestamp
--
--  # Fired when WebTransport is disposed.
--  event webTransportClosed
--    parameters
--      # WebTransport identifier.
--      RequestId transportId
--      # Timestamp.
--      MonotonicTime timestamp
--
--  experimental type DirectSocketDnsQueryType extends string
--    enum
--      ipv4
--      ipv6
--
--  experimental type DirectTCPSocketOptions extends object
--    properties
--      # TCP_NODELAY option
--      boolean noDelay
--      # Expected to be unsigned integer.
--      optional number keepAliveDelay
--      # Expected to be unsigned integer.
--      optional number sendBufferSize
--      # Expected to be unsigned integer.
--      optional number receiveBufferSize
--      optional DirectSocketDnsQueryType dnsQueryType
--
--
--  # Fired upon direct_socket.TCPSocket creation.
--  experimental event directTCPSocketCreated
--    parameters
--      RequestId identifier
--      string remoteAddr
--      # Unsigned int 16.
--      integer remotePort
--      DirectTCPSocketOptions options
--      MonotonicTime timestamp
--      optional Initiator initiator
--
--  # Fired when direct_socket.TCPSocket connection is opened.
--  experimental event directTCPSocketOpened
--    parameters
--      RequestId identifier
--      string remoteAddr
--      # Expected to be unsigned integer.
--      integer remotePort
--      MonotonicTime timestamp
--      optional string localAddr
--      # Expected to be unsigned integer.
--      optional integer localPort
--
--  # Fired when direct_socket.TCPSocket is aborted.
--  experimental event directTCPSocketAborted
--    parameters
--      RequestId identifier
--      string errorMessage
--      MonotonicTime timestamp
--
--  # Fired when direct_socket.TCPSocket is closed.
--  experimental event directTCPSocketClosed
--    parameters
--      RequestId identifier
--      MonotonicTime timestamp
--
--  # Fired when data is sent to tcp direct socket stream.
--  experimental event directTCPSocketChunkSent
--    parameters
--      RequestId identifier
--      binary data
--      MonotonicTime timestamp
--
--  # Fired when data is received from tcp direct socket stream.
--  experimental event directTCPSocketChunkReceived
--    parameters
--      RequestId identifier
--      binary data
--      MonotonicTime timestamp
--
--  experimental type DirectUDPSocketOptions extends object
--    properties
--      optional string remoteAddr
--      # Unsigned int 16.
--      optional integer remotePort
--
--      optional string localAddr
--      # Unsigned int 16.
--      optional integer localPort
--
--      optional DirectSocketDnsQueryType dnsQueryType
--
--      # Expected to be unsigned integer.
--      optional number sendBufferSize
--      # Expected to be unsigned integer.
--      optional number receiveBufferSize
--
--
--  # Fired upon direct_socket.UDPSocket creation.
--  experimental event directUDPSocketCreated
--    parameters
--      RequestId identifier
--      DirectUDPSocketOptions options
--      MonotonicTime timestamp
--      optional Initiator initiator
--
--  # Fired when direct_socket.UDPSocket connection is opened.
--  experimental event directUDPSocketOpened
--    parameters
--      RequestId identifier
--      string localAddr
--      # Expected to be unsigned integer.
--      integer localPort
--      MonotonicTime timestamp
--      optional string remoteAddr
--      # Expected to be unsigned integer.
--      optional integer remotePort
--
--  # Fired when direct_socket.UDPSocket is aborted.
--  experimental event directUDPSocketAborted
--    parameters
--      RequestId identifier
--      string errorMessage
--      MonotonicTime timestamp
--
--  # Fired when direct_socket.UDPSocket is closed.
--  experimental event directUDPSocketClosed
--    parameters
--      RequestId identifier
--      MonotonicTime timestamp
--
--  experimental type DirectUDPMessage extends object
--    properties
--      binary data
--      # Null for connected mode.
--      optional string remoteAddr
--      # Null for connected mode.
--      # Expected to be unsigned integer.
--      optional integer remotePort
--
--  # Fired when message is sent to udp direct socket stream.
--  experimental event directUDPSocketChunkSent
--    parameters
--      RequestId identifier
--      DirectUDPMessage message
--      MonotonicTime timestamp
--
--  # Fired when message is received from udp direct socket stream.
--  experimental event directUDPSocketChunkReceived
--    parameters
--      RequestId identifier
--      DirectUDPMessage message
--      MonotonicTime timestamp
--
--  experimental type PrivateNetworkRequestPolicy extends string
--    enum
--      Allow
--      BlockFromInsecureToMorePrivate
--      WarnFromInsecureToMorePrivate
--      PreflightBlock
--      PreflightWarn
--      PermissionBlock
--      PermissionWarn
--
--  experimental type IPAddressSpace extends string
--    enum
--      Loopback
--      Local
--      Public
--      Unknown
--
--  experimental type ConnectTiming extends object
--    properties
--      # Timing's requestTime is a baseline in seconds, while the other numbers are ticks in
--      # milliseconds relatively to this requestTime. Matches ResourceTiming's requestTime for
--      # the same request (but not for redirected requests).
--      number requestTime
--
--  experimental type ClientSecurityState extends object
--    properties
--      boolean initiatorIsSecureContext
--      IPAddressSpace initiatorIPAddressSpace
--      PrivateNetworkRequestPolicy privateNetworkRequestPolicy
--
--  # Fired when additional information about a requestWillBeSent event is available from the
--  # network stack. Not every requestWillBeSent event will have an additional
--  # requestWillBeSentExtraInfo fired for it, and there is no guarantee whether requestWillBeSent
--  # or requestWillBeSentExtraInfo will be fired first for the same request.
--  experimental event requestWillBeSentExtraInfo
--    parameters
--      # Request identifier. Used to match this information to an existing requestWillBeSent event.
--      RequestId requestId
--      # A list of cookies potentially associated to the requested URL. This includes both cookies sent with
--      # the request and the ones not sent; the latter are distinguished by having blockedReasons field set.
--      array of AssociatedCookie associatedCookies
--      # Raw request headers as they will be sent over the wire.
--      Headers headers
--      # Connection timing information for the request.
--      experimental ConnectTiming connectTiming
--      # The client security state set for the request.
--      optional ClientSecurityState clientSecurityState
--      # Whether the site has partitioned cookies stored in a partition different than the current one.
--      optional boolean siteHasCookieInOtherPartition
--
--  # Fired when additional information about a responseReceived event is available from the network
--  # stack. Not every responseReceived event will have an additional responseReceivedExtraInfo for
--  # it, and responseReceivedExtraInfo may be fired before or after responseReceived.
--  experimental event responseReceivedExtraInfo
--    parameters
--      # Request identifier. Used to match this information to another responseReceived event.
--      RequestId requestId
--      # A list of cookies which were not stored from the response along with the corresponding
--      # reasons for blocking. The cookies here may not be valid due to syntax errors, which
--      # are represented by the invalid cookie line string instead of a proper cookie.
--      array of BlockedSetCookieWithReason blockedCookies
--      # Raw response headers as they were received over the wire.
--      # Duplicate headers in the response are represented as a single key with their values
--      # concatentated using `\n` as the separator.
--      # See also `headersText` that contains verbatim text for HTTP/1.*.
--      Headers headers
--      # The IP address space of the resource. The address space can only be determined once the transport
--      # established the connection, so we can't send it in `requestWillBeSentExtraInfo`.
--      IPAddressSpace resourceIPAddressSpace
--      # The status code of the response. This is useful in cases the request failed and no responseReceived
--      # event is triggered, which is the case for, e.g., CORS errors. This is also the correct status code
--      # for cached requests, where the status in responseReceived is a 200 and this will be 304.
--      integer statusCode
--      # Raw response header text as it was received over the wire. The raw text may not always be
--      # available, such as in the case of HTTP/2 or QUIC.
--      optional string headersText
--      # The cookie partition key that will be used to store partitioned cookies set in this response.
--      # Only sent when partitioned cookies are enabled.
--      experimental optional CookiePartitionKey cookiePartitionKey
--      # True if partitioned cookies are enabled, but the partition key is not serializable to string.
--      optional boolean cookiePartitionKeyOpaque
--      # A list of cookies which should have been blocked by 3PCD but are exempted and stored from
--      # the response with the corresponding reason.
--      optional array of ExemptedSetCookieWithReason exemptedCookies
--
--  # Fired when 103 Early Hints headers is received in addition to the common response.
--  # Not every responseReceived event will have an responseReceivedEarlyHints fired.
--  # Only one responseReceivedEarlyHints may be fired for eached responseReceived event.
--  experimental event responseReceivedEarlyHints
--    parameters
--      # Request identifier. Used to match this information to another responseReceived event.
--      RequestId requestId
--      # Raw response headers as they were received over the wire.
--      # Duplicate headers in the response are represented as a single key with their values
--      # concatentated using `\n` as the separator.
--      # See also `headersText` that contains verbatim text for HTTP/1.*.
--      Headers headers
--
--  # Fired exactly once for each Trust Token operation. Depending on
--  # the type of the operation and whether the operation succeeded or
--  # failed, the event is fired before the corresponding request was sent
--  # or after the response was received.
--  experimental event trustTokenOperationDone
--    parameters
--      # Detailed success or error status of the operation.
--      # 'AlreadyExists' also signifies a successful operation, as the result
--      # of the operation already exists und thus, the operation was abort
--      # preemptively (e.g. a cache hit).
--      enum status
--        Ok
--        InvalidArgument
--        MissingIssuerKeys
--        FailedPrecondition
--        ResourceExhausted
--        AlreadyExists
--        ResourceLimited
--        Unauthorized
--        BadResponse
--        InternalError
--        UnknownError
--        FulfilledLocally
--        SiteIssuerLimit
--      TrustTokenOperationType type
--      RequestId requestId
--      # Top level origin. The context in which the operation was attempted.
--      optional string topLevelOrigin
--      # Origin of the issuer in case of a "Issuance" or "Redemption" operation.
--      optional string issuerOrigin
--      # The number of obtained Trust Tokens on a successful "Issuance" operation.
--      optional integer issuedTokenCount
--
--  # Fired once security policy has been updated.
--  experimental event policyUpdated
--
--  # Fired once when parsing the .wbn file has succeeded.
--  # The event contains the information about the web bundle contents.
--  experimental event subresourceWebBundleMetadataReceived
--    parameters
--      # Request identifier. Used to match this information to another event.
--      RequestId requestId
--      # A list of URLs of resources in the subresource Web Bundle.
--      array of string urls
--
--  # Fired once when parsing the .wbn file has failed.
--  experimental event subresourceWebBundleMetadataError
--    parameters
--      # Request identifier. Used to match this information to another event.
--      RequestId requestId
--      # Error message
--      string errorMessage
--
--  # Fired when handling requests for resources within a .wbn file.
--  # Note: this will only be fired for resources that are requested by the webpage.
--  experimental event subresourceWebBundleInnerResponseParsed
--    parameters
--      # Request identifier of the subresource request
--      RequestId innerRequestId
--      # URL of the subresource resource.
--      string innerRequestURL
--      # Bundle request identifier. Used to match this information to another event.
--      # This made be absent in case when the instrumentation was enabled only
--      # after webbundle was parsed.
--      optional RequestId bundleRequestId
--
--  # Fired when request for resources within a .wbn file failed.
--  experimental event subresourceWebBundleInnerResponseError
--    parameters
--      # Request identifier of the subresource request
--      RequestId innerRequestId
--      # URL of the subresource resource.
--      string innerRequestURL
--      # Error message
--      string errorMessage
--      # Bundle request identifier. Used to match this information to another event.
--      # This made be absent in case when the instrumentation was enabled only
--      # after webbundle was parsed.
--      optional RequestId bundleRequestId
--
--  experimental type CrossOriginOpenerPolicyValue extends string
--    enum
--      SameOrigin
--      SameOriginAllowPopups
--      RestrictProperties
--      UnsafeNone
--      SameOriginPlusCoep
--      RestrictPropertiesPlusCoep
--      NoopenerAllowPopups
--
--  experimental type CrossOriginOpenerPolicyStatus extends object
--    properties
--      CrossOriginOpenerPolicyValue value
--      CrossOriginOpenerPolicyValue reportOnlyValue
--      optional string reportingEndpoint
--      optional string reportOnlyReportingEndpoint
--
--  experimental type CrossOriginEmbedderPolicyValue extends string
--    enum
--      None
--      Credentialless
--      RequireCorp
--
--  experimental type CrossOriginEmbedderPolicyStatus extends object
--    properties
--      CrossOriginEmbedderPolicyValue value
--      CrossOriginEmbedderPolicyValue reportOnlyValue
--      optional string reportingEndpoint
--      optional string reportOnlyReportingEndpoint
--
--  experimental type ContentSecurityPolicySource extends string
--    enum
--      HTTP
--      Meta
--
--  experimental type ContentSecurityPolicyStatus extends object
--    properties
--      string effectiveDirectives
--      boolean isEnforced
--      ContentSecurityPolicySource source
--
--  experimental type SecurityIsolationStatus extends object
--    properties
--      optional CrossOriginOpenerPolicyStatus coop
--      optional CrossOriginEmbedderPolicyStatus coep
--      optional array of ContentSecurityPolicyStatus csp
--
--  # Returns information about the COEP/COOP isolation status.
--  experimental command getSecurityIsolationStatus
--    parameters
--      # If no frameId is provided, the status of the target is provided.
--      optional Page.FrameId frameId
--    returns
--      SecurityIsolationStatus status
--
--  # Enables tracking for the Reporting API, events generated by the Reporting API will now be delivered to the client.
--  # Enabling triggers 'reportingApiReportAdded' for all existing reports.
--  experimental command enableReportingApi
--    parameters
--      # Whether to enable or disable events for the Reporting API
--      boolean enable
--
--  # The status of a Reporting API report.
--  experimental type ReportStatus extends string
--    enum
--      # Report has been queued and no attempt has been made to deliver it yet,
--      # or attempted previous upload failed (impermanently).
--      Queued
--      # There is an ongoing attempt to upload this report.
--      Pending
--      # Deletion of this report was requested while it was pending, so it will
--      # be removed after possibly outstanding upload attempts complete (successful
--      # or not).
--      MarkedForRemoval
--      # Successfully uploaded and MarkedForRemoval.
--      Success
--
--  experimental type ReportId extends string
--
--  # An object representing a report generated by the Reporting API.
--  experimental type ReportingApiReport extends object
--    properties
--      ReportId id
--      # The URL of the document that triggered the report.
--      string initiatorUrl
--      # The name of the endpoint group that should be used to deliver the report.
--      string destination
--      # The type of the report (specifies the set of data that is contained in the report body).
--      string type
--      # When the report was generated.
--      Network.TimeSinceEpoch timestamp
--      # How many uploads deep the related request was.
--      integer depth
--      # The number of delivery attempts made so far, not including an active attempt.
--      integer completedAttempts
--      object body
--      ReportStatus status
--
--  # Is sent whenever a new report is added.
--  # And after 'enableReportingApi' for all existing reports.
--  experimental event reportingApiReportAdded
--    parameters
--      ReportingApiReport report
--
--  experimental event reportingApiReportUpdated
--    parameters
--      ReportingApiReport report
--
--  experimental type ReportingApiEndpoint extends object
--    properties
--      # The URL of the endpoint to which reports may be delivered.
--      string url
--      # Name of the endpoint group.
--      string groupName
--
--  experimental event reportingApiEndpointsChangedForOrigin
--    parameters
--      # Origin of the document(s) which configured the endpoints.
--      string origin
--      array of ReportingApiEndpoint endpoints
--
--  # An object providing the result of a network resource load.
--  experimental type LoadNetworkResourcePageResult extends object
--    properties
--      boolean success
--      # Optional values used for error reporting.
--      optional number netError
--      optional string netErrorName
--      optional number httpStatusCode
--      # If successful, one of the following two fields holds the result.
--      optional IO.StreamHandle stream
--      # Response headers.
--      optional Network.Headers headers
--
--  # An options object that may be extended later to better support CORS,
--  # CORB and streaming.
--  experimental type LoadNetworkResourceOptions extends object
--    properties
--      boolean disableCache
--      boolean includeCredentials
--
--  # Fetches the resource and returns the content.
--  experimental command loadNetworkResource
--    parameters
--      # Frame id to get the resource for. Mandatory for frame targets, and
--      # should be omitted for worker targets.
--      optional Page.FrameId frameId
--      # URL of the resource to get content for.
--      string url
--      # Options for the request.
--      LoadNetworkResourceOptions options
--    returns
--      LoadNetworkResourcePageResult resource
--
--  # Sets Controls for third-party cookie access
--  # Page reload is required before the new cookie behavior will be observed
--  experimental command setCookieControls
--    parameters
--      # Whether 3pc restriction is enabled.
--      boolean enableThirdPartyCookieRestriction
--
--      # Whether 3pc grace period exception should be enabled; false by default.
--      boolean disableThirdPartyCookieMetadata
--
--      # Whether 3pc heuristics exceptions should be enabled; false by default.
--      boolean disableThirdPartyCookieHeuristics
--
--# This domain provides various functionality related to drawing atop the inspected page.
--experimental domain Overlay
--  depends on DOM
--  depends on Page
--  depends on Runtime
--
--  # Configuration data for drawing the source order of an elements children.
--  type SourceOrderConfig extends object
--    properties
--      # the color to outline the given element in.
--      DOM.RGBA parentOutlineColor
--      # the color to outline the child elements in.
--      DOM.RGBA childOutlineColor
--
--  # Configuration data for the highlighting of Grid elements.
--  type GridHighlightConfig extends object
--    properties
--      # Whether the extension lines from grid cells to the rulers should be shown (default: false).
--      optional boolean showGridExtensionLines
--      # Show Positive line number labels (default: false).
--      optional boolean showPositiveLineNumbers
--      # Show Negative line number labels (default: false).
--      optional boolean showNegativeLineNumbers
--      # Show area name labels (default: false).
--      optional boolean showAreaNames
--      # Show line name labels (default: false).
--      optional boolean showLineNames
--      # Show track size labels (default: false).
--      optional boolean showTrackSizes
--      # The grid container border highlight color (default: transparent).
--      optional DOM.RGBA gridBorderColor
--      # The cell border color (default: transparent). Deprecated, please use rowLineColor and columnLineColor instead.
--      deprecated optional DOM.RGBA cellBorderColor
--      # The row line color (default: transparent).
--      optional DOM.RGBA rowLineColor
--      # The column line color (default: transparent).
--      optional DOM.RGBA columnLineColor
--      # Whether the grid border is dashed (default: false).
--      optional boolean gridBorderDash
--      # Whether the cell border is dashed (default: false). Deprecated, please us rowLineDash and columnLineDash instead.
--      deprecated optional boolean cellBorderDash
--      # Whether row lines are dashed (default: false).
--      optional boolean rowLineDash
--      # Whether column lines are dashed (default: false).
--      optional boolean columnLineDash
--      # The row gap highlight fill color (default: transparent).
--      optional DOM.RGBA rowGapColor
--      # The row gap hatching fill color (default: transparent).
--      optional DOM.RGBA rowHatchColor
--      # The column gap highlight fill color (default: transparent).
--      optional DOM.RGBA columnGapColor
--      # The column gap hatching fill color (default: transparent).
--      optional DOM.RGBA columnHatchColor
--      # The named grid areas border color (Default: transparent).
--      optional DOM.RGBA areaBorderColor
--      # The grid container background color (Default: transparent).
--      optional DOM.RGBA gridBackgroundColor
--
--  # Configuration data for the highlighting of Flex container elements.
--  type FlexContainerHighlightConfig extends object
--    properties
--      # The style of the container border
--      optional LineStyle containerBorder
--      # The style of the separator between lines
--      optional LineStyle lineSeparator
--      # The style of the separator between items
--      optional LineStyle itemSeparator
--      # Style of content-distribution space on the main axis (justify-content).
--      optional BoxStyle mainDistributedSpace
--      # Style of content-distribution space on the cross axis (align-content).
--      optional BoxStyle crossDistributedSpace
--      # Style of empty space caused by row gaps (gap/row-gap).
--      optional BoxStyle rowGapSpace
--      # Style of empty space caused by columns gaps (gap/column-gap).
--      optional BoxStyle columnGapSpace
--      # Style of the self-alignment line (align-items).
--      optional LineStyle crossAlignment
--
--  # Configuration data for the highlighting of Flex item elements.
--  type FlexItemHighlightConfig extends object
--    properties
--      # Style of the box representing the item's base size
--      optional BoxStyle baseSizeBox
--      # Style of the border around the box representing the item's base size
--      optional LineStyle baseSizeBorder
--      # Style of the arrow representing if the item grew or shrank
--      optional LineStyle flexibilityArrow
--
--  # Style information for drawing a line.
--  type LineStyle extends object
--    properties
--      # The color of the line (default: transparent)
--      optional DOM.RGBA color
--      # The line pattern (default: solid)
--      optional enum pattern
--        dashed
--        dotted
--
--  # Style information for drawing a box.
--  type BoxStyle extends object
--    properties
--      # The background color for the box (default: transparent)
--      optional DOM.RGBA fillColor
--      # The hatching color for the box (default: transparent)
--      optional DOM.RGBA hatchColor
--
--  type ContrastAlgorithm extends string
--    enum
--      aa
--      aaa
--      apca
--
--  # Configuration data for the highlighting of page elements.
--  type HighlightConfig extends object
--    properties
--      # Whether the node info tooltip should be shown (default: false).
--      optional boolean showInfo
--      # Whether the node styles in the tooltip (default: false).
--      optional boolean showStyles
--      # Whether the rulers should be shown (default: false).
--      optional boolean showRulers
--      # Whether the a11y info should be shown (default: true).
--      optional boolean showAccessibilityInfo
--      # Whether the extension lines from node to the rulers should be shown (default: false).
--      optional boolean showExtensionLines
--      # The content box highlight fill color (default: transparent).
--      optional DOM.RGBA contentColor
--      # The padding highlight fill color (default: transparent).
--      optional DOM.RGBA paddingColor
--      # The border highlight fill color (default: transparent).
--      optional DOM.RGBA borderColor
--      # The margin highlight fill color (default: transparent).
--      optional DOM.RGBA marginColor
--      # The event target element highlight fill color (default: transparent).
--      optional DOM.RGBA eventTargetColor
--      # The shape outside fill color (default: transparent).
--      optional DOM.RGBA shapeColor
--      # The shape margin fill color (default: transparent).
--      optional DOM.RGBA shapeMarginColor
--      # The grid layout color (default: transparent).
--      optional DOM.RGBA cssGridColor
--      # The color format used to format color styles (default: hex).
--      optional ColorFormat colorFormat
--      # The grid layout highlight configuration (default: all transparent).
--      optional GridHighlightConfig gridHighlightConfig
--      # The flex container highlight configuration (default: all transparent).
--      optional FlexContainerHighlightConfig flexContainerHighlightConfig
--      # The flex item highlight configuration (default: all transparent).
--      optional FlexItemHighlightConfig flexItemHighlightConfig
--      # The contrast algorithm to use for the contrast ratio (default: aa).
--      optional ContrastAlgorithm contrastAlgorithm
--      # The container query container highlight configuration (default: all transparent).
--      optional ContainerQueryContainerHighlightConfig containerQueryContainerHighlightConfig
--
--  type ColorFormat extends string
--    enum
--      rgb
--      hsl
--      hwb
--      hex
--
--  # Configurations for Persistent Grid Highlight
--  type GridNodeHighlightConfig extends object
--    properties
--      # A descriptor for the highlight appearance.
--      GridHighlightConfig gridHighlightConfig
--      # Identifier of the node to highlight.
--      DOM.NodeId nodeId
--
--  type FlexNodeHighlightConfig extends object
--    properties
--      # A descriptor for the highlight appearance of flex containers.
--      FlexContainerHighlightConfig flexContainerHighlightConfig
--      # Identifier of the node to highlight.
--      DOM.NodeId nodeId
--
--  type ScrollSnapContainerHighlightConfig extends object
--    properties
--      # The style of the snapport border (default: transparent)
--      optional LineStyle snapportBorder
--      # The style of the snap area border (default: transparent)
--      optional LineStyle snapAreaBorder
--      # The margin highlight fill color (default: transparent).
--      optional DOM.RGBA scrollMarginColor
--      # The padding highlight fill color (default: transparent).
--      optional DOM.RGBA scrollPaddingColor
--
--  type ScrollSnapHighlightConfig extends object
--    properties
--      # A descriptor for the highlight appearance of scroll snap containers.
--      ScrollSnapContainerHighlightConfig scrollSnapContainerHighlightConfig
--      # Identifier of the node to highlight.
--      DOM.NodeId nodeId
--
--  # Configuration for dual screen hinge
--  type HingeConfig extends object
--    properties
--      # A rectangle represent hinge
--      DOM.Rect rect
--      # The content box highlight fill color (default: a dark color).
--      optional DOM.RGBA contentColor
--      # The content box highlight outline color (default: transparent).
--      optional DOM.RGBA outlineColor
--
--  # Configuration for Window Controls Overlay
--  type WindowControlsOverlayConfig extends object
--    properties
--      # Whether the title bar CSS should be shown when emulating the Window Controls Overlay.
--      boolean showCSS
--      # Selected platforms to show the overlay.
--      string selectedPlatform
--      # The theme color defined in app manifest.
--      string themeColor
--
--  type ContainerQueryHighlightConfig extends object
--    properties
--      # A descriptor for the highlight appearance of container query containers.
--      ContainerQueryContainerHighlightConfig containerQueryContainerHighlightConfig
--      # Identifier of the container node to highlight.
--      DOM.NodeId nodeId
--
--  type ContainerQueryContainerHighlightConfig extends object
--    properties
--      # The style of the container border.
--      optional LineStyle containerBorder
--      # The style of the descendants' borders.
--      optional LineStyle descendantBorder
--
--  type IsolatedElementHighlightConfig extends object
--    properties
--      # A descriptor for the highlight appearance of an element in isolation mode.
--      IsolationModeHighlightConfig isolationModeHighlightConfig
--      # Identifier of the isolated element to highlight.
--      DOM.NodeId nodeId
--
--  type IsolationModeHighlightConfig extends object
--    properties
--      # The fill color of the resizers (default: transparent).
--      optional DOM.RGBA resizerColor
--      # The fill color for resizer handles (default: transparent).
--      optional DOM.RGBA resizerHandleColor
--      # The fill color for the mask covering non-isolated elements (default: transparent).
--      optional DOM.RGBA maskColor
--
--  type InspectMode extends string
--    enum
--      searchForNode
--      searchForUAShadowDOM
--      captureAreaScreenshot
--      none
--
--  # Disables domain notifications.
--  command disable
--
--  # Enables domain notifications.
--  command enable
--
--  # For testing.
--  command getHighlightObjectForTest
--    parameters
--      # Id of the node to get highlight object for.
--      DOM.NodeId nodeId
--      # Whether to include distance info.
--      optional boolean includeDistance
--      # Whether to include style info.
--      optional boolean includeStyle
--      # The color format to get config with (default: hex).
--      optional ColorFormat colorFormat
--      # Whether to show accessibility info (default: true).
--      optional boolean showAccessibilityInfo
--    returns
--      # Highlight data for the node.
--      object highlight
--
--  # For Persistent Grid testing.
--  command getGridHighlightObjectsForTest
--    parameters
--      # Ids of the node to get highlight object for.
--      array of DOM.NodeId nodeIds
--    returns
--      # Grid Highlight data for the node ids provided.
--      object highlights
--
--  # For Source Order Viewer testing.
--  command getSourceOrderHighlightObjectForTest
--    parameters
--      # Id of the node to highlight.
--      DOM.NodeId nodeId
--    returns
--      # Source order highlight data for the node id provided.
--      object highlight
--
--  # Hides any highlight.
--  command hideHighlight
--
--  # Highlights owner element of the frame with given id.
--  # Deprecated: Doesn't work reliably and cannot be fixed due to process
--  # separation (the owner node might be in a different process). Determine
--  # the owner node in the client and use highlightNode.
--  deprecated command highlightFrame
--    parameters
--      # Identifier of the frame to highlight.
--      Page.FrameId frameId
--      # The content box highlight fill color (default: transparent).
--      optional DOM.RGBA contentColor
--      # The content box highlight outline color (default: transparent).
--      optional DOM.RGBA contentOutlineColor
--
--  # Highlights DOM node with given id or with the given JavaScript object wrapper. Either nodeId or
--  # objectId must be specified.
--  command highlightNode
--    parameters
--      # A descriptor for the highlight appearance.
--      HighlightConfig highlightConfig
--      # Identifier of the node to highlight.
--      optional DOM.NodeId nodeId
--      # Identifier of the backend node to highlight.
--      optional DOM.BackendNodeId backendNodeId
--      # JavaScript object id of the node to be highlighted.
--      optional Runtime.RemoteObjectId objectId
--      # Selectors to highlight relevant nodes.
--      optional string selector
--
--  # Highlights given quad. Coordinates are absolute with respect to the main frame viewport.
--  command highlightQuad
--    parameters
--      # Quad to highlight
--      DOM.Quad quad
--      # The highlight fill color (default: transparent).
--      optional DOM.RGBA color
--      # The highlight outline color (default: transparent).
--      optional DOM.RGBA outlineColor
--
--  # Highlights given rectangle. Coordinates are absolute with respect to the main frame viewport.
--  command highlightRect
--    parameters
--      # X coordinate
--      integer x
--      # Y coordinate
--      integer y
--      # Rectangle width
--      integer width
--      # Rectangle height
--      integer height
--      # The highlight fill color (default: transparent).
--      optional DOM.RGBA color
--      # The highlight outline color (default: transparent).
--      optional DOM.RGBA outlineColor
--
--  # Highlights the source order of the children of the DOM node with given id or with the given
--  # JavaScript object wrapper. Either nodeId or objectId must be specified.
--  command highlightSourceOrder
--    parameters
--      # A descriptor for the appearance of the overlay drawing.
--      SourceOrderConfig sourceOrderConfig
--      # Identifier of the node to highlight.
--      optional DOM.NodeId nodeId
--      # Identifier of the backend node to highlight.
--      optional DOM.BackendNodeId backendNodeId
--      # JavaScript object id of the node to be highlighted.
--      optional Runtime.RemoteObjectId objectId
--
--  # Enters the 'inspect' mode. In this mode, elements that user is hovering over are highlighted.
--  # Backend then generates 'inspectNodeRequested' event upon element selection.
--  command setInspectMode
--    parameters
--      # Set an inspection mode.
--      InspectMode mode
--      # A descriptor for the highlight appearance of hovered-over nodes. May be omitted if `enabled
--      # == false`.
--      optional HighlightConfig highlightConfig
--
--  # Highlights owner element of all frames detected to be ads.
--  command setShowAdHighlights
--    parameters
--      # True for showing ad highlights
--      boolean show
--
--  command setPausedInDebuggerMessage
--    parameters
--      # The message to display, also triggers resume and step over controls.
--      optional string message
--
--  # Requests that backend shows debug borders on layers
--  command setShowDebugBorders
--    parameters
--      # True for showing debug borders
--      boolean show
--
--  # Requests that backend shows the FPS counter
--  command setShowFPSCounter
--    parameters
--      # True for showing the FPS counter
--      boolean show
--
--  # Highlight multiple elements with the CSS Grid overlay.
--  command setShowGridOverlays
--    parameters
--      # An array of node identifiers and descriptors for the highlight appearance.
--      array of GridNodeHighlightConfig gridNodeHighlightConfigs
--
--  command setShowFlexOverlays
--    parameters
--      # An array of node identifiers and descriptors for the highlight appearance.
--      array of FlexNodeHighlightConfig flexNodeHighlightConfigs
--
--  command setShowScrollSnapOverlays
--    parameters
--      # An array of node identifiers and descriptors for the highlight appearance.
--      array of ScrollSnapHighlightConfig scrollSnapHighlightConfigs
--
--  command setShowContainerQueryOverlays
--    parameters
--      # An array of node identifiers and descriptors for the highlight appearance.
--      array of ContainerQueryHighlightConfig containerQueryHighlightConfigs
--
--  # Requests that backend shows paint rectangles
--  command setShowPaintRects
--    parameters
--      # True for showing paint rectangles
--      boolean result
--
--  # Requests that backend shows layout shift regions
--  command setShowLayoutShiftRegions
--    parameters
--      # True for showing layout shift regions
--      boolean result
--
--  # Requests that backend shows scroll bottleneck rects
--  command setShowScrollBottleneckRects
--    parameters
--      # True for showing scroll bottleneck rects
--      boolean show
--
--  # Deprecated, no longer has any effect.
--  deprecated command setShowHitTestBorders
--    parameters
--      # True for showing hit-test borders
--      boolean show
--
--  # Deprecated, no longer has any effect.
--  deprecated command setShowWebVitals
--    parameters
--      boolean show
--
--  # Paints viewport size upon main frame resize.
--  command setShowViewportSizeOnResize
--    parameters
--      # Whether to paint size or not.
--      boolean show
--
--  # Add a dual screen device hinge
--  command setShowHinge
--    parameters
--      # hinge data, null means hideHinge
--      optional HingeConfig hingeConfig
--
--  # Show elements in isolation mode with overlays.
--  command setShowIsolatedElements
--    parameters
--      # An array of node identifiers and descriptors for the highlight appearance.
--      array of IsolatedElementHighlightConfig isolatedElementHighlightConfigs
--
--  # Show Window Controls Overlay for PWA
--  command setShowWindowControlsOverlay
--    parameters
--      # Window Controls Overlay data, null means hide Window Controls Overlay
--      optional WindowControlsOverlayConfig windowControlsOverlayConfig
--
--  # Fired when the node should be inspected. This happens after call to `setInspectMode` or when
--  # user manually inspects an element.
--  event inspectNodeRequested
--    parameters
--      # Id of the node to inspect.
--      DOM.BackendNodeId backendNodeId
--
--  # Fired when the node should be highlighted. This happens after call to `setInspectMode`.
--  event nodeHighlightRequested
--    parameters
--      DOM.NodeId nodeId
--
--  # Fired when user asks to capture screenshot of some area on the page.
--  event screenshotRequested
--    parameters
--      # Viewport to capture, in device independent pixels (dip).
--      Page.Viewport viewport
--
--  # Fired when user cancels the inspect mode.
--  event inspectModeCanceled
--
--# Actions and events related to the inspected page belong to the page domain.
--domain Page
--  depends on Debugger
--  depends on DOM
--  depends on IO
--  depends on Network
--  depends on Runtime
--
--  # Unique frame identifier.
--  type FrameId extends string
--
--  # Indicates whether a frame has been identified as an ad.
--  experimental type AdFrameType extends string
--    enum
--      none
--      # This frame is a subframe of an ad frame.
--      child
--      # This frame is the root of an ad frame.
--      root
--
--  experimental type AdFrameExplanation extends string
--    enum
--      ParentIsAd
--      CreatedByAdScript
--      MatchedBlockingRule
--
--  # Indicates whether a frame has been identified as an ad and why.
--  experimental type AdFrameStatus extends object
--    properties
--      AdFrameType adFrameType
--      optional array of AdFrameExplanation explanations
--
--  # Identifies the script which caused a script or frame to be labelled as an
--  # ad.
--  experimental type AdScriptId extends object
--    properties
--      # Script Id of the script which caused a script or frame to be labelled as
--      # an ad.
--      Runtime.ScriptId scriptId
--      # Id of scriptId's debugger.
--      Runtime.UniqueDebuggerId debuggerId
--
--  # Encapsulates the script ancestry and the root script filterlist rule that
--  # caused the frame to be labelled as an ad. Only created when `ancestryChain`
--  # is not empty.
--  experimental type AdScriptAncestry extends object
--    properties
--      # A chain of `AdScriptId`s representing the ancestry of an ad script that
--      # led to the creation of a frame. The chain is ordered from the script
--      # itself (lower level) up to its root ancestor that was flagged by
--      # filterlist.
--      array of AdScriptId ancestryChain
--      # The filterlist rule that caused the root (last) script in
--      # `ancestryChain` to be ad-tagged. Only populated if the rule is
--      # available.
--      optional string rootScriptFilterlistRule
--
--  # Indicates whether the frame is a secure context and why it is the case.
--  experimental type SecureContextType extends string
--    enum
--      # The origin is a secure context.
--      Secure
--      # The host is localhost and hence is considered secure.
--      SecureLocalhost
--      # The origin has an insecure scheme and is not localhost.
--      InsecureScheme
--      # One of the ancestor frames is not a secure context.
--      InsecureAncestor
--
--  # Indicates whether the frame is cross-origin isolated and why it is the case.
--  experimental type CrossOriginIsolatedContextType extends string
--    enum
--      # The origin is cross-origin isolated.
--      Isolated
--      # The origin is not cross-origin isolated.
--      NotIsolated
--      # The cross-origin isolation feature is disabled.
--      NotIsolatedFeatureDisabled
--
--  experimental type GatedAPIFeatures extends string
--    enum
--      SharedArrayBuffers
--      SharedArrayBuffersTransferAllowed
--      PerformanceMeasureMemory
--      PerformanceProfile
--
--  # All Permissions Policy features. This enum should match the one defined
--  # in services/network/public/cpp/permissions_policy/permissions_policy_features.json5.
--  # LINT.IfChange(PermissionsPolicyFeature)
--  experimental type PermissionsPolicyFeature extends string
--    enum
--      accelerometer
--      all-screens-capture
--      ambient-light-sensor
--      aria-notify
--      attribution-reporting
--      autoplay
--      bluetooth
--      browsing-topics
--      camera
--      captured-surface-control
--      ch-dpr
--      ch-device-memory
--      ch-downlink
--      ch-ect
--      ch-prefers-color-scheme
--      ch-prefers-reduced-motion
--      ch-prefers-reduced-transparency
--      ch-rtt
--      ch-save-data
--      ch-ua
--      ch-ua-arch
--      ch-ua-bitness
--      ch-ua-high-entropy-values
--      ch-ua-platform
--      ch-ua-model
--      ch-ua-mobile
--      ch-ua-form-factors
--      ch-ua-full-version
--      ch-ua-full-version-list
--      ch-ua-platform-version
--      ch-ua-wow64
--      ch-viewport-height
--      ch-viewport-width
--      ch-width
--      clipboard-read
--      clipboard-write
--      compute-pressure
--      controlled-frame
--      cross-origin-isolated
--      deferred-fetch
--      deferred-fetch-minimal
--      device-attributes
--      digital-credentials-create
--      digital-credentials-get
--      direct-sockets
--      direct-sockets-private
--      display-capture
--      document-domain
--      encrypted-media
--      execution-while-out-of-viewport
--      execution-while-not-rendered
--      fenced-unpartitioned-storage-read
--      focus-without-user-activation
--      fullscreen
--      frobulate
--      gamepad
--      geolocation
--      gyroscope
--      hid
--      identity-credentials-get
--      idle-detection
--      interest-cohort
--      join-ad-interest-group
--      keyboard-map
--      language-detector
--      language-model
--      local-fonts
--      local-network-access
--      magnetometer
--      media-playback-while-not-visible
--      microphone
--      midi
--      on-device-speech-recognition
--      otp-credentials
--      payment
--      picture-in-picture
--      popins
--      private-aggregation
--      private-state-token-issuance
--      private-state-token-redemption
--      publickey-credentials-create
--      publickey-credentials-get
--      record-ad-auction-events
--      rewriter
--      run-ad-auction
--      screen-wake-lock
--      serial
--      shared-autofill
--      shared-storage
--      shared-storage-select-url
--      smart-card
--      speaker-selection
--      storage-access
--      sub-apps
--      summarizer
--      sync-xhr
--      translator
--      unload
--      usb
--      usb-unrestricted
--      vertical-scroll
--      web-app-installation
--      web-printing
--      web-share
--      window-management
--      writer
--      xr-spatial-tracking
--  # LINT.ThenChange(//services/network/public/cpp/permissions_policy/permissions_policy_features.json5:PermissionsPolicy)
--
--  # Reason for a permissions policy feature to be disabled.
--  experimental type PermissionsPolicyBlockReason extends string
--    enum
--      # Declaration in HTTP header.
--      Header
--      # Declaration in iframe attribute.
--      IframeAttribute
--      # Inside fenced frame.
--      InFencedFrameTree
--      # Inside an Isolated Application.
--      InIsolatedApp
--
--  experimental type PermissionsPolicyBlockLocator extends object
--    properties
--      FrameId frameId
--      PermissionsPolicyBlockReason blockReason
--
--  experimental type PermissionsPolicyFeatureState extends object
--    properties
--      PermissionsPolicyFeature feature
--      boolean allowed
--      optional PermissionsPolicyBlockLocator locator
--
--  # Origin Trial(https://www.chromium.org/blink/origin-trials) support.
--  # Status for an Origin Trial token.
--  experimental type OriginTrialTokenStatus extends string
--    enum
--      Success
--      NotSupported
--      Insecure
--      Expired
--      WrongOrigin
--      InvalidSignature
--      Malformed
--      WrongVersion
--      FeatureDisabled
--      TokenDisabled
--      FeatureDisabledForUser
--      UnknownTrial
--
--  # Status for an Origin Trial.
--  experimental type OriginTrialStatus extends string
--    enum
--      Enabled
--      ValidTokenNotProvided
--      OSNotSupported
--      TrialNotAllowed
--
--  experimental type OriginTrialUsageRestriction extends string
--    enum
--      None
--      Subset
--
--  experimental type OriginTrialToken extends object
--    properties
--      string origin
--      boolean matchSubDomains
--      string trialName
--      Network.TimeSinceEpoch expiryTime
--      boolean isThirdParty
--      OriginTrialUsageRestriction usageRestriction
--
--  experimental type OriginTrialTokenWithStatus extends object
--    properties
--      string rawTokenText
--      # `parsedToken` is present only when the token is extractable and
--      # parsable.
--      optional OriginTrialToken parsedToken
--      OriginTrialTokenStatus status
--
--  experimental type OriginTrial extends object
--    properties
--      string trialName
--      OriginTrialStatus status
--      array of OriginTrialTokenWithStatus tokensWithStatus
--
--  # Additional information about the frame document's security origin.
--  experimental type SecurityOriginDetails extends object
--    properties
--      # Indicates whether the frame document's security origin is one
--      # of the local hostnames (e.g. "localhost") or IP addresses (IPv4
--      # 127.0.0.0/8 or IPv6 ::1).
--      boolean isLocalhost
--
--  # Information about the Frame on the page.
--  type Frame extends object
--    properties
--      # Frame unique identifier.
--      FrameId id
--      # Parent frame identifier.
--      optional FrameId parentId
--      # Identifier of the loader associated with this frame.
--      Network.LoaderId loaderId
--      # Frame's name as specified in the tag.
--      optional string name
--      # Frame document's URL without fragment.
--      string url
--      # Frame document's URL fragment including the '#'.
--      experimental optional string urlFragment
--      # Frame document's registered domain, taking the public suffixes list into account.
--      # Extracted from the Frame's url.
--      # Example URLs: http://www.google.com/file.html -> "google.com"
--      #               http://a.b.co.uk/file.html      -> "b.co.uk"
--      experimental string domainAndRegistry
--      # Frame document's security origin.
--      string securityOrigin
--      # Additional details about the frame document's security origin.
--      experimental optional SecurityOriginDetails securityOriginDetails
--      # Frame document's mimeType as determined by the browser.
--      string mimeType
--      # If the frame failed to load, this contains the URL that could not be loaded. Note that unlike url above, this URL may contain a fragment.
--      experimental optional string unreachableUrl
--      # Indicates whether this frame was tagged as an ad and why.
--      experimental optional AdFrameStatus adFrameStatus
--      # Indicates whether the main document is a secure context and explains why that is the case.
--      experimental SecureContextType secureContextType
--      # Indicates whether this is a cross origin isolated context.
--      experimental CrossOriginIsolatedContextType crossOriginIsolatedContextType
--      # Indicated which gated APIs / features are available.
--      experimental array of GatedAPIFeatures gatedAPIFeatures
--
--  # Information about the Resource on the page.
--  experimental type FrameResource extends object
--    properties
--      # Resource URL.
--      string url
--      # Type of this resource.
--      Network.ResourceType type
--      # Resource mimeType as determined by the browser.
--      string mimeType
--      # last-modified timestamp as reported by server.
--      optional Network.TimeSinceEpoch lastModified
--      # Resource content size.
--      optional number contentSize
--      # True if the resource failed to load.
--      optional boolean failed
--      # True if the resource was canceled during loading.
--      optional boolean canceled
--
--  # Information about the Frame hierarchy along with their cached resources.
--  experimental type FrameResourceTree extends object
--    properties
--      # Frame information for this tree item.
--      Frame frame
--      # Child frames.
--      optional array of FrameResourceTree childFrames
--      # Information about frame resources.
--      array of FrameResource resources
--
--  # Information about the Frame hierarchy.
--  type FrameTree extends object
--    properties
--      # Frame information for this tree item.
--      Frame frame
--      # Child frames.
--      optional array of FrameTree childFrames
--
--  # Unique script identifier.
--  type ScriptIdentifier extends string
--
--  # Transition type.
--  type TransitionType extends string
--    enum
--      link
--      typed
--      address_bar
--      auto_bookmark
--      auto_subframe
--      manual_subframe
--      generated
--      auto_toplevel
--      form_submit
--      reload
--      keyword
--      keyword_generated
--      other
--
--  # Navigation history entry.
--  type NavigationEntry extends object
--    properties
--      # Unique id of the navigation history entry.
--      integer id
--      # URL of the navigation history entry.
--      string url
--      # URL that the user typed in the url bar.
--      string userTypedURL
--      # Title of the navigation history entry.
--      string title
--      # Transition type.
--      TransitionType transitionType
--
--  # Screencast frame metadata.
--  experimental type ScreencastFrameMetadata extends object
--    properties
--      # Top offset in DIP.
--      number offsetTop
--      # Page scale factor.
--      number pageScaleFactor
--      # Device screen width in DIP.
--      number deviceWidth
--      # Device screen height in DIP.
--      number deviceHeight
--      # Position of horizontal scroll in CSS pixels.
--      number scrollOffsetX
--      # Position of vertical scroll in CSS pixels.
--      number scrollOffsetY
--      # Frame swap timestamp.
--      optional Network.TimeSinceEpoch timestamp
--
--  # Javascript dialog type.
--  type DialogType extends string
--    enum
--      alert
--      confirm
--      prompt
--      beforeunload
--
--  # Error while paring app manifest.
--  type AppManifestError extends object
--    properties
--      # Error message.
--      string message
--      # If critical, this is a non-recoverable parse error.
--      integer critical
--      # Error line.
--      integer line
--      # Error column.
--      integer column
--
--  # Parsed app manifest properties.
--  experimental type AppManifestParsedProperties extends object
--    properties
--      # Computed scope value
--      string scope
--
--  # Layout viewport position and dimensions.
--  type LayoutViewport extends object
--    properties
--      # Horizontal offset relative to the document (CSS pixels).
--      integer pageX
--      # Vertical offset relative to the document (CSS pixels).
--      integer pageY
--      # Width (CSS pixels), excludes scrollbar if present.
--      integer clientWidth
--      # Height (CSS pixels), excludes scrollbar if present.
--      integer clientHeight
--
--  # Visual viewport position, dimensions, and scale.
--  type VisualViewport extends object
--    properties
--      # Horizontal offset relative to the layout viewport (CSS pixels).
--      number offsetX
--      # Vertical offset relative to the layout viewport (CSS pixels).
--      number offsetY
--      # Horizontal offset relative to the document (CSS pixels).
--      number pageX
--      # Vertical offset relative to the document (CSS pixels).
--      number pageY
--      # Width (CSS pixels), excludes scrollbar if present.
--      number clientWidth
--      # Height (CSS pixels), excludes scrollbar if present.
--      number clientHeight
--      # Scale relative to the ideal viewport (size at width=device-width).
--      number scale
--      # Page zoom factor (CSS to device independent pixels ratio).
--      optional number zoom
--
--  # Viewport for capturing screenshot.
--  type Viewport extends object
--    properties
--      # X offset in device independent pixels (dip).
--      number x
--      # Y offset in device independent pixels (dip).
--      number y
--      # Rectangle width in device independent pixels (dip).
--      number width
--      # Rectangle height in device independent pixels (dip).
--      number height
--      # Page scale factor.
--      number scale
--
--  # Generic font families collection.
--  experimental type FontFamilies extends object
--    properties
--      # The standard font-family.
--      optional string standard
--      # The fixed font-family.
--      optional string fixed
--      # The serif font-family.
--      optional string serif
--      # The sansSerif font-family.
--      optional string sansSerif
--      # The cursive font-family.
--      optional string cursive
--      # The fantasy font-family.
--      optional string fantasy
--      # The math font-family.
--      optional string math
--
--  # Font families collection for a script.
--  experimental type ScriptFontFamilies extends object
--    properties
--      # Name of the script which these font families are defined for.
--      string script
--      # Generic font families collection for the script.
--      FontFamilies fontFamilies
--
--  # Default font sizes.
--  experimental type FontSizes extends object
--    properties
--      # Default standard font size.
--      optional integer standard
--      # Default fixed font size.
--      optional integer fixed
--
--  experimental type ClientNavigationReason extends string
--    enum
--      anchorClick
--      formSubmissionGet
--      formSubmissionPost
--      httpHeaderRefresh
--      initialFrameNavigation
--      metaTagRefresh
--      other
--      pageBlockInterstitial
--      reload
--      scriptInitiated
--
--  experimental type ClientNavigationDisposition extends string
--    enum
--      currentTab
--      newTab
--      newWindow
--      download
--
--  experimental type InstallabilityErrorArgument extends object
--    properties
--      # Argument name (e.g. name:'minimum-icon-size-in-pixels').
--      string name
--      # Argument value (e.g. value:'64').
--      string value
--
--  # The installability error
--  experimental type InstallabilityError extends object
--    properties
--      # The error id (e.g. 'manifest-missing-suitable-icon').
--      string errorId
--      # The list of error arguments (e.g. {name:'minimum-icon-size-in-pixels', value:'64'}).
--      array of InstallabilityErrorArgument errorArguments
--
--  # The referring-policy used for the navigation.
--  experimental type ReferrerPolicy extends string
--    enum
--      noReferrer
--      noReferrerWhenDowngrade
--      origin
--      originWhenCrossOrigin
--      sameOrigin
--      strictOrigin
--      strictOriginWhenCrossOrigin
--      unsafeUrl
--
--  # Per-script compilation cache parameters for `Page.produceCompilationCache`
--  experimental type CompilationCacheParams extends object
--    properties
--      # The URL of the script to produce a compilation cache entry for.
--      string url
--      # A hint to the backend whether eager compilation is recommended.
--      # (the actual compilation mode used is upon backend discretion).
--      optional boolean eager
--
--  # Deprecated, please use addScriptToEvaluateOnNewDocument instead.
--  experimental deprecated command addScriptToEvaluateOnLoad
--    parameters
--      string scriptSource
--    returns
--      # Identifier of the added script.
--      ScriptIdentifier identifier
--
--  # Evaluates given script in every frame upon creation (before loading frame's scripts).
--  command addScriptToEvaluateOnNewDocument
--    parameters
--      string source
--      # If specified, creates an isolated world with the given name and evaluates given script in it.
--      # This world name will be used as the ExecutionContextDescription::name when the corresponding
--      # event is emitted.
--      experimental optional string worldName
--      # Specifies whether command line API should be available to the script, defaults
--      # to false.
--      experimental optional boolean includeCommandLineAPI
--      # If true, runs the script immediately on existing execution contexts or worlds.
--      # Default: false.
--      experimental optional boolean runImmediately
--    returns
--      # Identifier of the added script.
--      ScriptIdentifier identifier
--
--  # Brings page to front (activates tab).
--  command bringToFront
--
--  # Capture page screenshot.
--  command captureScreenshot
--    parameters
--      # Image compression format (defaults to png).
--      optional enum format
--        jpeg
--        png
--        webp
--      # Compression quality from range [0..100] (jpeg only).
--      optional integer quality
--      # Capture the screenshot of a given region only.
--      optional Viewport clip
--      # Capture the screenshot from the surface, rather than the view. Defaults to true.
--      experimental optional boolean fromSurface
--      # Capture the screenshot beyond the viewport. Defaults to false.
--      experimental optional boolean captureBeyondViewport
--      # Optimize image encoding for speed, not for resulting size (defaults to false)
--      experimental optional boolean optimizeForSpeed
--    returns
--      # Base64-encoded image data.
--      binary data
--
--  # Returns a snapshot of the page as a string. For MHTML format, the serialization includes
--  # iframes, shadow DOM, external resources, and element-inline styles.
--  experimental command captureSnapshot
--    parameters
--      # Format (defaults to mhtml).
--      optional enum format
--        mhtml
--    returns
--      # Serialized page data.
--      string data
--
--  # Clears the overridden device metrics.
--  experimental deprecated command clearDeviceMetricsOverride
--    # Use 'Emulation.clearDeviceMetricsOverride' instead
--    redirect Emulation
--
--  # Clears the overridden Device Orientation.
--  experimental deprecated command clearDeviceOrientationOverride
--    # Use 'DeviceOrientation.clearDeviceOrientationOverride' instead
--    redirect DeviceOrientation
--
--  # Clears the overridden Geolocation Position and Error.
--  deprecated command clearGeolocationOverride
--    # Use 'Emulation.clearGeolocationOverride' instead
--    redirect Emulation
--
--  # Creates an isolated world for the given frame.
--  command createIsolatedWorld
--    parameters
--      # Id of the frame in which the isolated world should be created.
--      FrameId frameId
--      # An optional name which is reported in the Execution Context.
--      optional string worldName
--      # Whether or not universal access should be granted to the isolated world. This is a powerful
--      # option, use with caution.
--      optional boolean grantUniveralAccess
--    returns
--      # Execution context of the isolated world.
--      Runtime.ExecutionContextId executionContextId
--
--  # Deletes browser cookie with given name, domain and path.
--  experimental deprecated command deleteCookie
--    # Use 'Network.deleteCookie' instead
--    redirect Network
--    parameters
--      # Name of the cookie to remove.
--      string cookieName
--      # URL to match cooke domain and path.
--      string url
--
--  # Disables page domain notifications.
--  command disable
--
--  # Enables page domain notifications.
--  command enable
--    parameters
--      # If true, the `Page.fileChooserOpened` event will be emitted regardless of the state set by
--      # `Page.setInterceptFileChooserDialog` command (default: false).
--      experimental optional boolean enableFileChooserOpenedEvent
--
--  # The manifest of a webapp, see
--  # https://www.w3.org/TR/appmanifest/#dfn-manifest.
--  # Some fields do not appear in the standard since the API is designed to
--  # expose more browser internal states.
--
--  experimental type FileFilter extends object
--    properties
--      optional string name
--      optional array of string accepts
--
--  experimental type FileHandler extends object
--    properties
--      string action
--      string name
--      optional array of ImageResource icons
--      # Mimic a map, name is the key, accepts is the value.
--      optional array of FileFilter accepts
--      # Won't repeat the enums, using string for easy comparison. Same as the
--      # other enums below.
--      string launchType
--
--  # The image definition used in both icon and screenshot.
--  experimental type ImageResource extends object
--    properties
--      # The src field in the definition, but changing to url in favor of
--      # consistency.
--      string url
--      optional string sizes
--      optional string type
--
--  experimental type LaunchHandler extends object
--    properties
--      string clientMode
--
--  experimental type ProtocolHandler extends object
--    properties
--      string protocol
--      string url
--
--  experimental type RelatedApplication extends object
--    properties
--      optional string id
--      string url
--
--  experimental type ScopeExtension extends object
--    properties
--      # Instead of using tuple, this field always returns the serialized string
--      # for easy understanding and comparison.
--      string origin
--      boolean hasOriginWildcard
--
--  experimental type Screenshot extends object
--    properties
--      ImageResource image
--      string formFactor
--      optional string label
--
--  experimental type ShareTarget extends object
--    properties
--      string action
--      string method
--      string enctype
--      # Embed the ShareTargetParams
--      optional string title
--      optional string text
--      optional string url
--      optional array of FileFilter files
--
--  experimental type Shortcut extends object
--    properties
--      string name
--      string url
--
--  experimental type WebAppManifest extends object
--    properties
--      optional string backgroundColor
--      # The extra description provided by the manifest.
--      optional string description
--      optional string dir
--      optional string display
--      # The overrided display mode controlled by the user.
--      optional array of string displayOverrides
--      # The handlers to open files.
--      optional array of FileHandler fileHandlers
--      optional array of ImageResource icons
--      optional string id
--      optional string lang
--      # TODO(crbug.com/1231886): This field is non-standard and part of a Chrome
--      # experiment. See:
--      # https://github.com/WICG/web-app-launch/blob/main/launch_handler.md
--      optional LaunchHandler launchHandler
--      optional string name
--      optional string orientation
--      optional boolean preferRelatedApplications
--      # The handlers to open protocols.
--      optional array of ProtocolHandler protocolHandlers
--      optional array of RelatedApplication relatedApplications
--      optional string scope
--      # Non-standard, see
--      # https://github.com/WICG/manifest-incubations/blob/gh-pages/scope_extensions-explainer.md
--      optional array of ScopeExtension scopeExtensions
--      # The screenshots used by chromium.
--      optional array of Screenshot screenshots
--      optional ShareTarget shareTarget
--      optional string shortName
--      optional array of Shortcut shortcuts
--      optional string startUrl
--      optional string themeColor
--
--  # Gets the processed manifest for this current document.
--  #   This API always waits for the manifest to be loaded.
--  #   If manifestId is provided, and it does not match the manifest of the
--  #     current document, this API errors out.
--  #   If there is not a loaded page, this API errors out immediately.
--  command getAppManifest
--    parameters
--      optional string manifestId
--    returns
--      # Manifest location.
--      string url
--      array of AppManifestError errors
--      # Manifest content.
--      optional string data
--      # Parsed manifest properties. Deprecated, use manifest instead.
--      experimental deprecated optional AppManifestParsedProperties parsed
--      experimental WebAppManifest manifest
--
--  experimental command getInstallabilityErrors
--    returns
--      array of InstallabilityError installabilityErrors
--
--  # Deprecated because it's not guaranteed that the returned icon is in fact the one used for PWA installation.
--  experimental deprecated command getManifestIcons
--    returns
--      optional binary primaryIcon
--
--  # Returns the unique (PWA) app id.
--  # Only returns values if the feature flag 'WebAppEnableManifestId' is enabled
--  experimental command getAppId
--    returns
--      # App id, either from manifest's id attribute or computed from start_url
--      optional string appId
--      # Recommendation for manifest's id attribute to match current id computed from start_url
--      optional string recommendedId
--
--  experimental command getAdScriptAncestry
--    parameters
--      FrameId frameId
--    returns
--      # The ancestry chain of ad script identifiers leading to this frame's
--      # creation, along with the root script's filterlist rule. The ancestry
--      # chain is ordered from the most immediate script (in the frame creation
--      # stack) to more distant ancestors (that created the immediately preceding
--      # script). Only sent if frame is labelled as an ad and ids are available.
--      optional AdScriptAncestry adScriptAncestry
--
--  # Returns present frame tree structure.
--  command getFrameTree
--    returns
--      # Present frame tree structure.
--      FrameTree frameTree
--
--  # Returns metrics relating to the layouting of the page, such as viewport bounds/scale.
--  command getLayoutMetrics
--    returns
--      # Deprecated metrics relating to the layout viewport. Is in device pixels. Use `cssLayoutViewport` instead.
--      deprecated LayoutViewport layoutViewport
--      # Deprecated metrics relating to the visual viewport. Is in device pixels. Use `cssVisualViewport` instead.
--      deprecated VisualViewport visualViewport
--      # Deprecated size of scrollable area. Is in DP. Use `cssContentSize` instead.
--      deprecated DOM.Rect contentSize
--      # Metrics relating to the layout viewport in CSS pixels.
--      LayoutViewport cssLayoutViewport
--      # Metrics relating to the visual viewport in CSS pixels.
--      VisualViewport cssVisualViewport
--      # Size of scrollable area in CSS pixels.
--      DOM.Rect cssContentSize
--
--  # Returns navigation history for the current page.
--  command getNavigationHistory
--    returns
--      # Index of the current navigation history entry.
--      integer currentIndex
--      # Array of navigation history entries.
--      array of NavigationEntry entries
--
--  # Resets navigation history for the current page.
--  command resetNavigationHistory
--
--  # Returns content of the given resource.
--  experimental command getResourceContent
--    parameters
--      # Frame id to get resource for.
--      FrameId frameId
--      # URL of the resource to get content for.
--      string url
--    returns
--      # Resource content.
--      string content
--      # True, if content was served as base64.
--      boolean base64Encoded
--
--  # Returns present frame / resource tree structure.
--  experimental command getResourceTree
--    returns
--      # Present frame / resource tree structure.
--      FrameResourceTree frameTree
--
--  # Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).
--  command handleJavaScriptDialog
--    parameters
--      # Whether to accept or dismiss the dialog.
--      boolean accept
--      # The text to enter into the dialog prompt before accepting. Used only if this is a prompt
--      # dialog.
--      optional string promptText
--
--  # Navigates current page to the given URL.
--  command navigate
--    parameters
--      # URL to navigate the page to.
--      string url
--      # Referrer URL.
--      optional string referrer
--      # Intended transition type.
--      optional TransitionType transitionType
--      # Frame id to navigate, if not specified navigates the top frame.
--      optional FrameId frameId
--      # Referrer-policy used for the navigation.
--      experimental optional ReferrerPolicy referrerPolicy
--    returns
--      # Frame id that has navigated (or failed to navigate)
--      FrameId frameId
--      # Loader identifier. This is omitted in case of same-document navigation,
--      # as the previously committed loaderId would not change.
--      optional Network.LoaderId loaderId
--      # User friendly error message, present if and only if navigation has failed.
--      optional string errorText
--      # Whether the navigation resulted in a download.
--      experimental optional boolean isDownload
--
--  # Navigates current page to the given history entry.
--  command navigateToHistoryEntry
--    parameters
--      # Unique id of the entry to navigate to.
--      integer entryId
--
--  # Print page as PDF.
--  command printToPDF
--    parameters
--      # Paper orientation. Defaults to false.
--      optional boolean landscape
--      # Display header and footer. Defaults to false.
--      optional boolean displayHeaderFooter
--      # Print background graphics. Defaults to false.
--      optional boolean printBackground
--      # Scale of the webpage rendering. Defaults to 1.
--      optional number scale
--      # Paper width in inches. Defaults to 8.5 inches.
--      optional number paperWidth
--      # Paper height in inches. Defaults to 11 inches.
--      optional number paperHeight
--      # Top margin in inches. Defaults to 1cm (~0.4 inches).
--      optional number marginTop
--      # Bottom margin in inches. Defaults to 1cm (~0.4 inches).
--      optional number marginBottom
--      # Left margin in inches. Defaults to 1cm (~0.4 inches).
--      optional number marginLeft
--      # Right margin in inches. Defaults to 1cm (~0.4 inches).
--      optional number marginRight
--      # Paper ranges to print, one based, e.g., '1-5, 8, 11-13'. Pages are
--      # printed in the document order, not in the order specified, and no
--      # more than once.
--      # Defaults to empty string, which implies the entire document is printed.
--      # The page numbers are quietly capped to actual page count of the
--      # document, and ranges beyond the end of the document are ignored.
--      # If this results in no pages to print, an error is reported.
--      # It is an error to specify a range with start greater than end.
--      optional string pageRanges
--      # HTML template for the print header. Should be valid HTML markup with following
--      # classes used to inject printing values into them:
--      # - `date`: formatted print date
--      # - `title`: document title
--      # - `url`: document location
--      # - `pageNumber`: current page number
--      # - `totalPages`: total pages in the document
--      #
--      # For example, `<span class=title></span>` would generate span containing the title.
--      optional string headerTemplate
--      # HTML template for the print footer. Should use the same format as the `headerTemplate`.
--      optional string footerTemplate
--      # Whether or not to prefer page size as defined by css. Defaults to false,
--      # in which case the content will be scaled to fit the paper size.
--      optional boolean preferCSSPageSize
--      # return as stream
--      experimental optional enum transferMode
--        ReturnAsBase64
--        ReturnAsStream
--      # Whether or not to generate tagged (accessible) PDF. Defaults to embedder choice.
--      experimental optional boolean generateTaggedPDF
--      # Whether or not to embed the document outline into the PDF.
--      experimental optional boolean generateDocumentOutline
--    returns
--      # Base64-encoded pdf data. Empty if |returnAsStream| is specified.
--      binary data
--      # A handle of the stream that holds resulting PDF data.
--      experimental optional IO.StreamHandle stream
--
--  # Reloads given page optionally ignoring the cache.
--  command reload
--    parameters
--      # If true, browser cache is ignored (as if the user pressed Shift+refresh).
--      optional boolean ignoreCache
--      # If set, the script will be injected into all frames of the inspected page after reload.
--      # Argument will be ignored if reloading dataURL origin.
--      optional string scriptToEvaluateOnLoad
--      # If set, an error will be thrown if the target page's main frame's
--      # loader id does not match the provided id. This prevents accidentally
--      # reloading an unintended target in case there's a racing navigation.
--      experimental optional Network.LoaderId loaderId
--
--  # Deprecated, please use removeScriptToEvaluateOnNewDocument instead.
--  experimental deprecated command removeScriptToEvaluateOnLoad
--    parameters
--      ScriptIdentifier identifier
--
--  # Removes given script from the list.
--  command removeScriptToEvaluateOnNewDocument
--    parameters
--      ScriptIdentifier identifier
--
--  # Acknowledges that a screencast frame has been received by the frontend.
--  experimental command screencastFrameAck
--    parameters
--      # Frame number.
--      integer sessionId
--
--  # Searches for given string in resource content.
--  experimental command searchInResource
--    parameters
--      # Frame id for resource to search in.
--      FrameId frameId
--      # URL of the resource to search in.
--      string url
--      # String to search for.
--      string query
--      # If true, search is case sensitive.
--      optional boolean caseSensitive
--      # If true, treats string parameter as regex.
--      optional boolean isRegex
--    returns
--      # List of search matches.
--      array of Debugger.SearchMatch result
--
--  # Enable Chrome's experimental ad filter on all sites.
--  experimental command setAdBlockingEnabled
--    parameters
--      # Whether to block ads.
--      boolean enabled
--
--  # Enable page Content Security Policy by-passing.
--  command setBypassCSP
--    parameters
--      # Whether to bypass page CSP.
--      boolean enabled
--
--  # Get Permissions Policy state on given frame.
--  experimental command getPermissionsPolicyState
--    parameters
--      FrameId frameId
--    returns
--      array of PermissionsPolicyFeatureState states
--
--  # Get Origin Trials on given frame.
--  experimental command getOriginTrials
--    parameters
--      FrameId frameId
--    returns
--      array of OriginTrial originTrials
--
--  # Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
--  # window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
--  # query results).
--  experimental deprecated command setDeviceMetricsOverride
--    # Use 'Emulation.setDeviceMetricsOverride' instead
--    redirect Emulation
--    parameters
--      # Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
--      integer width
--      # Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
--      integer height
--      # Overriding device scale factor value. 0 disables the override.
--      number deviceScaleFactor
--      # Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
--      # autosizing and more.
--      boolean mobile
--      # Scale to apply to resulting view image.
--      optional number scale
--      # Overriding screen width value in pixels (minimum 0, maximum 10000000).
--      optional integer screenWidth
--      # Overriding screen height value in pixels (minimum 0, maximum 10000000).
--      optional integer screenHeight
--      # Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
--      optional integer positionX
--      # Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
--      optional integer positionY
--      # Do not set visible view size, rely upon explicit setVisibleSize call.
--      optional boolean dontSetVisibleSize
--      # Screen orientation override.
--      optional Emulation.ScreenOrientation screenOrientation
--      # The viewport dimensions and scale. If not set, the override is cleared.
--      optional Viewport viewport
--
--  # Overrides the Device Orientation.
--  experimental deprecated command setDeviceOrientationOverride
--    # Use 'DeviceOrientation.setDeviceOrientationOverride' instead
--    redirect DeviceOrientation
--    parameters
--      # Mock alpha
--      number alpha
--      # Mock beta
--      number beta
--      # Mock gamma
--      number gamma
--
--  # Set generic font families.
--  experimental command setFontFamilies
--    parameters
--      # Specifies font families to set. If a font family is not specified, it won't be changed.
--      FontFamilies fontFamilies
--      # Specifies font families to set for individual scripts.
--      optional array of ScriptFontFamilies forScripts
--
--  # Set default font sizes.
--  experimental command setFontSizes
--    parameters
--      # Specifies font sizes to set. If a font size is not specified, it won't be changed.
--      FontSizes fontSizes
--
--  # Sets given markup as the document's HTML.
--  command setDocumentContent
--    parameters
--      # Frame id to set HTML for.
--      FrameId frameId
--      # HTML content to set.
--      string html
--
--  # Set the behavior when downloading a file.
--  experimental deprecated command setDownloadBehavior
--    parameters
--      # Whether to allow all or deny all download requests, or use default Chrome behavior if
--      # available (otherwise deny).
--      enum behavior
--        deny
--        allow
--        default
--      # The default path to save downloaded files to. This is required if behavior is set to 'allow'
--      optional string downloadPath
--
--  # Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
--  # unavailable.
--  deprecated command setGeolocationOverride
--    # Use 'Emulation.setGeolocationOverride' instead
--    redirect Emulation
--    parameters
--      # Mock latitude
--      optional number latitude
--      # Mock longitude
--      optional number longitude
--      # Mock accuracy
--      optional number accuracy
--
--  # Controls whether page will emit lifecycle events.
--  command setLifecycleEventsEnabled
--    parameters
--      # If true, starts emitting lifecycle events.
--      boolean enabled
--
--  # Toggles mouse event-based touch event emulation.
--  experimental deprecated command setTouchEmulationEnabled
--    # Use 'Emulation.setTouchEmulationEnabled' instead
--    redirect Emulation
--    parameters
--      # Whether the touch event emulation should be enabled.
--      boolean enabled
--      # Touch/gesture events configuration. Default: current platform.
--      optional enum configuration
--        mobile
--        desktop
--
--  # Starts sending each frame using the `screencastFrame` event.
--  experimental command startScreencast
--    parameters
--      # Image compression format.
--      optional enum format
--        jpeg
--        png
--      # Compression quality from range [0..100].
--      optional integer quality
--      # Maximum screenshot width.
--      optional integer maxWidth
--      # Maximum screenshot height.
--      optional integer maxHeight
--      # Send every n-th frame.
--      optional integer everyNthFrame
--
--  # Force the page stop all navigations and pending resource fetches.
--  command stopLoading
--
--  # Crashes renderer on the IO thread, generates minidumps.
--  experimental command crash
--
--  # Tries to close page, running its beforeunload hooks, if any.
--  command close
--
--  # Tries to update the web lifecycle state of the page.
--  # It will transition the page to the given state according to:
--  # https://github.com/WICG/web-lifecycle/
--  experimental command setWebLifecycleState
--    parameters
--      # Target lifecycle state
--      enum state
--        frozen
--        active
--
--  # Stops sending each frame in the `screencastFrame`.
--  experimental command stopScreencast
--
--  # Requests backend to produce compilation cache for the specified scripts.
--  # `scripts` are appended to the list of scripts for which the cache
--  # would be produced. The list may be reset during page navigation.
--  # When script with a matching URL is encountered, the cache is optionally
--  # produced upon backend discretion, based on internal heuristics.
--  # See also: `Page.compilationCacheProduced`.
--  experimental command produceCompilationCache
--    parameters
--      array of CompilationCacheParams scripts
--
--  # Seeds compilation cache for given url. Compilation cache does not survive
--  # cross-process navigation.
--  experimental command addCompilationCache
--    parameters
--      string url
--      # Base64-encoded data
--      binary data
--
--  # Clears seeded compilation cache.
--  experimental command clearCompilationCache
--
--  # Sets the Secure Payment Confirmation transaction mode.
--  # https://w3c.github.io/secure-payment-confirmation/#sctn-automation-set-spc-transaction-mode
--  experimental command setSPCTransactionMode
--    parameters
--      enum mode
--        none
--        autoAccept
--        autoChooseToAuthAnotherWay
--        autoReject
--        autoOptOut
--
--  # Extensions for Custom Handlers API:
--  # https://html.spec.whatwg.org/multipage/system-state.html#rph-automation
--  experimental command setRPHRegistrationMode
--    parameters
--      enum mode
--        none
--        autoAccept
--        autoReject
--
--  # Generates a report for testing.
--  experimental command generateTestReport
--    parameters
--      # Message to be displayed in the report.
--      string message
--      # Specifies the endpoint group to deliver the report to.
--      optional string group
--
--  # Pauses page execution. Can be resumed using generic Runtime.runIfWaitingForDebugger.
--  experimental command waitForDebugger
--
--  # Intercept file chooser requests and transfer control to protocol clients.
--  # When file chooser interception is enabled, native file chooser dialog is not shown.
--  # Instead, a protocol event `Page.fileChooserOpened` is emitted.
--  command setInterceptFileChooserDialog
--    parameters
--      boolean enabled
--      # If true, cancels the dialog by emitting relevant events (if any)
--      # in addition to not showing it if the interception is enabled
--      # (default: false).
--      experimental optional boolean cancel
--
--  event domContentEventFired
--    parameters
--      Network.MonotonicTime timestamp
--
--  # Emitted only when `page.interceptFileChooser` is enabled.
--  event fileChooserOpened
--    parameters
--      # Id of the frame containing input node.
--      experimental FrameId frameId
--      # Input mode.
--      enum mode
--        selectSingle
--        selectMultiple
--      # Input node id. Only present for file choosers opened via an `<input type="file">` element.
--      experimental optional DOM.BackendNodeId backendNodeId
--
--  # Fired when frame has been attached to its parent.
--  event frameAttached
--    parameters
--      # Id of the frame that has been attached.
--      FrameId frameId
--      # Parent frame identifier.
--      FrameId parentFrameId
--      # JavaScript stack trace of when frame was attached, only set if frame initiated from script.
--      optional Runtime.StackTrace stack
--
--  # Fired when frame no longer has a scheduled navigation.
--  deprecated event frameClearedScheduledNavigation
--    parameters
--      # Id of the frame that has cleared its scheduled navigation.
--      FrameId frameId
--
--  # Fired when frame has been detached from its parent.
--  event frameDetached
--    parameters
--      # Id of the frame that has been detached.
--      FrameId frameId
--      experimental enum reason
--        # The frame is removed from the DOM.
--        remove
--        # The frame is being swapped out in favor of an out-of-process iframe.
--        # A new frame target will be created (see Target.attachedToTarget).
--        swap
--
--  # Fired before frame subtree is detached. Emitted before any frame of the
--  # subtree is actually detached.
--  experimental event frameSubtreeWillBeDetached
--    parameters
--      # Id of the frame that is the root of the subtree that will be detached.
--      FrameId frameId
--
--  # The type of a frameNavigated event.
--  experimental type NavigationType extends string
--    enum
--      Navigation
--      BackForwardCacheRestore
--
--  # Fired once navigation of the frame has completed. Frame is now associated with the new loader.
--  event frameNavigated
--    parameters
--      # Frame object.
--      Frame frame
--      experimental NavigationType type
--
--  # Fired when opening document to write to.
--  experimental event documentOpened
--    parameters
--      # Frame object.
--      Frame frame
--
--  experimental event frameResized
--
--  # Fired when a navigation starts. This event is fired for both
--  # renderer-initiated and browser-initiated navigations. For renderer-initiated
--  # navigations, the event is fired after `frameRequestedNavigation`.
--  # Navigation may still be cancelled after the event is issued. Multiple events
--  # can be fired for a single navigation, for example, when a same-document
--  # navigation becomes a cross-document navigation (such as in the case of a
--  # frameset).
--  experimental event frameStartedNavigating
--    parameters
--      # ID of the frame that is being navigated.
--      FrameId frameId
--      # The URL the navigation started with. The final URL can be different.
--      string url
--      # Loader identifier. Even though it is present in case of same-document
--      # navigation, the previously committed loaderId would not change unless
--      # the navigation changes from a same-document to a cross-document
--      # navigation.
--      Network.LoaderId loaderId
--      enum navigationType
--        reload
--        reloadBypassingCache
--        restore
--        restoreWithPost
--        historySameDocument
--        historyDifferentDocument
--        sameDocument
--        differentDocument
--
--  # Fired when a renderer-initiated navigation is requested.
--  # Navigation may still be cancelled after the event is issued.
--  experimental event frameRequestedNavigation
--    parameters
--      # Id of the frame that is being navigated.
--      FrameId frameId
--      # The reason for the navigation.
--      ClientNavigationReason reason
--      # The destination URL for the requested navigation.
--      string url
--      # The disposition for the navigation.
--      ClientNavigationDisposition disposition
--
--  # Fired when frame schedules a potential navigation.
--  deprecated event frameScheduledNavigation
--    parameters
--      # Id of the frame that has scheduled a navigation.
--      FrameId frameId
--      # Delay (in seconds) until the navigation is scheduled to begin. The navigation is not
--      # guaranteed to start.
--      number delay
--      # The reason for the navigation.
--      ClientNavigationReason reason
--      # The destination URL for the scheduled navigation.
--      string url
--
--  # Fired when frame has started loading.
--  experimental event frameStartedLoading
--    parameters
--      # Id of the frame that has started loading.
--      FrameId frameId
--
--  # Fired when frame has stopped loading.
--  experimental event frameStoppedLoading
--    parameters
--      # Id of the frame that has stopped loading.
--      FrameId frameId
--
--  # Fired when page is about to start a download.
--  # Deprecated. Use Browser.downloadWillBegin instead.
--  experimental deprecated event downloadWillBegin
--    parameters
--      # Id of the frame that caused download to begin.
--      FrameId frameId
--      # Global unique identifier of the download.
--      string guid
--      # URL of the resource being downloaded.
--      string url
--      # Suggested file name of the resource (the actual name of the file saved on disk may differ).
--      string suggestedFilename
--
--  # Fired when download makes progress. Last call has |done| == true.
--  # Deprecated. Use Browser.downloadProgress instead.
--  experimental deprecated event downloadProgress
--    parameters
--      # Global unique identifier of the download.
--      string guid
--      # Total expected bytes to download.
--      number totalBytes
--      # Total bytes received.
--      number receivedBytes
--      # Download status.
--      enum state
--        inProgress
--        completed
--        canceled
--
--  # Fired when interstitial page was hidden
--  event interstitialHidden
--
--  # Fired when interstitial page was shown
--  event interstitialShown
--
--  # Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been
--  # closed.
--  event javascriptDialogClosed
--    parameters
--      # Frame id.
--      experimental FrameId frameId
--      # Whether dialog was confirmed.
--      boolean result
--      # User input in case of prompt.
--      string userInput
--
--  # Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to
--  # open.
--  event javascriptDialogOpening
--    parameters
--      # Frame url.
--      string url
--      # Frame id.
--      experimental FrameId frameId
--      # Message that will be displayed by the dialog.
--      string message
--      # Dialog type.
--      DialogType type
--      # True iff browser is capable showing or acting on the given dialog. When browser has no
--      # dialog handler for given target, calling alert while Page domain is engaged will stall
--      # the page execution. Execution can be resumed via calling Page.handleJavaScriptDialog.
--      boolean hasBrowserHandler
--      # Default dialog prompt.
--      optional string defaultPrompt
--
--  # Fired for lifecycle events (navigation, load, paint, etc) in the current
--  # target (including local frames).
--  event lifecycleEvent
--    parameters
--      # Id of the frame.
--      FrameId frameId
--      # Loader identifier. Empty string if the request is fetched from worker.
--      Network.LoaderId loaderId
--      string name
--      Network.MonotonicTime timestamp
--
--  # List of not restored reasons for back-forward cache.
--  experimental type BackForwardCacheNotRestoredReason extends string
--    enum
--      NotPrimaryMainFrame
--      BackForwardCacheDisabled
--      RelatedActiveContentsExist
--      HTTPStatusNotOK
--      SchemeNotHTTPOrHTTPS
--      Loading
--      WasGrantedMediaAccess
--      DisableForRenderFrameHostCalled
--      DomainNotAllowed
--      HTTPMethodNotGET
--      SubframeIsNavigating
--      Timeout
--      CacheLimit
--      JavaScriptExecution
--      RendererProcessKilled
--      RendererProcessCrashed
--      SchedulerTrackedFeatureUsed
--      ConflictingBrowsingInstance
--      CacheFlushed
--      ServiceWorkerVersionActivation
--      SessionRestored
--      ServiceWorkerPostMessage
--      EnteredBackForwardCacheBeforeServiceWorkerHostAdded
--      RenderFrameHostReused_SameSite
--      RenderFrameHostReused_CrossSite
--      ServiceWorkerClaim
--      IgnoreEventAndEvict
--      HaveInnerContents
--      TimeoutPuttingInCache
--      BackForwardCacheDisabledByLowMemory
--      BackForwardCacheDisabledByCommandLine
--      NetworkRequestDatapipeDrainedAsBytesConsumer
--      NetworkRequestRedirected
--      NetworkRequestTimeout
--      NetworkExceedsBufferLimit
--      NavigationCancelledWhileRestoring
--      NotMostRecentNavigationEntry
--      BackForwardCacheDisabledForPrerender
--      UserAgentOverrideDiffers
--      ForegroundCacheLimit
--      BrowsingInstanceNotSwapped
--      BackForwardCacheDisabledForDelegate
--      UnloadHandlerExistsInMainFrame
--      UnloadHandlerExistsInSubFrame
--      ServiceWorkerUnregistration
--      CacheControlNoStore
--      CacheControlNoStoreCookieModified
--      CacheControlNoStoreHTTPOnlyCookieModified
--      NoResponseHead
--      Unknown
--      ActivationNavigationsDisallowedForBug1234857
--      ErrorDocument
--      FencedFramesEmbedder
--      CookieDisabled
--      HTTPAuthRequired
--      CookieFlushed
--      BroadcastChannelOnMessage
--      WebViewSettingsChanged
--      WebViewJavaScriptObjectChanged
--      WebViewMessageListenerInjected
--      WebViewSafeBrowsingAllowlistChanged
--      WebViewDocumentStartJavascriptChanged
--      #Blocklisted features
--      WebSocket
--      WebTransport
--      WebRTC
--      MainResourceHasCacheControlNoStore
--      MainResourceHasCacheControlNoCache
--      SubresourceHasCacheControlNoStore
--      SubresourceHasCacheControlNoCache
--      ContainsPlugins
--      DocumentLoaded
--      OutstandingNetworkRequestOthers
--      RequestedMIDIPermission
--      RequestedAudioCapturePermission
--      RequestedVideoCapturePermission
--      RequestedBackForwardCacheBlockedSensors
--      RequestedBackgroundWorkPermission
--      BroadcastChannel
--      WebXR
--      SharedWorker
--      SharedWorkerMessage
--      WebLocks
--      WebHID
--      WebShare
--      RequestedStorageAccessGrant
--      WebNfc
--      OutstandingNetworkRequestFetch
--      OutstandingNetworkRequestXHR
--      AppBanner
--      Printing
--      WebDatabase
--      PictureInPicture
--      SpeechRecognizer
--      IdleManager
--      PaymentManager
--      SpeechSynthesis
--      KeyboardLock
--      WebOTPService
--      OutstandingNetworkRequestDirectSocket
--      InjectedJavascript
--      InjectedStyleSheet
--      KeepaliveRequest
--      IndexedDBEvent
--      Dummy
--      JsNetworkRequestReceivedCacheControlNoStoreResource
--      WebRTCSticky
--      WebTransportSticky
--      WebSocketSticky
--      SmartCard
--      LiveMediaStreamTrack
--      UnloadHandler
--      ParserAborted
--      # Disabled for RenderFrameHost reasons
--      # See content/browser/renderer_host/back_forward_cache_disable.h for explanations.
--      ContentSecurityHandler
--      ContentWebAuthenticationAPI
--      ContentFileChooser
--      ContentSerial
--      ContentFileSystemAccess
--      ContentMediaDevicesDispatcherHost
--      ContentWebBluetooth
--      ContentWebUSB
--      ContentMediaSessionService
--      ContentScreenReader
--      ContentDiscarded
--
--      # See components/back_forward_cache/back_forward_cache_disable.h for explanations.
--      EmbedderPopupBlockerTabHelper
--      EmbedderSafeBrowsingTriggeredPopupBlocker
--      EmbedderSafeBrowsingThreatDetails
--      EmbedderAppBannerManager
--      EmbedderDomDistillerViewerSource
--      EmbedderDomDistillerSelfDeletingRequestDelegate
--      EmbedderOomInterventionTabHelper
--      EmbedderOfflinePage
--      EmbedderChromePasswordManagerClientBindCredentialManager
--      EmbedderPermissionRequestManager
--      EmbedderModalDialog
--      EmbedderExtensions
--      EmbedderExtensionMessaging
--      EmbedderExtensionMessagingForOpenPort
--      EmbedderExtensionSentMessageToCachedFrame
--      RequestedByWebViewClient
--      PostMessageByWebViewClient
--      CacheControlNoStoreDeviceBoundSessionTerminated
--      CacheLimitPrunedOnModerateMemoryPressure
--      CacheLimitPrunedOnCriticalMemoryPressure
--
--  # Types of not restored reasons for back-forward cache.
--  experimental type BackForwardCacheNotRestoredReasonType extends string
--    enum
--      SupportPending
--      PageSupportNeeded
--      Circumstantial
--
--  experimental type BackForwardCacheBlockingDetails extends object
--    properties
--      # Url of the file where blockage happened. Optional because of tests.
--      optional string url
--      # Function name where blockage happened. Optional because of anonymous functions and tests.
--      optional string function
--      # Line number in the script (0-based).
--      integer lineNumber
--      # Column number in the script (0-based).
--      integer columnNumber
--
--  experimental type BackForwardCacheNotRestoredExplanation extends object
--    properties
--      # Type of the reason
--      BackForwardCacheNotRestoredReasonType type
--      # Not restored reason
--      BackForwardCacheNotRestoredReason reason
--      # Context associated with the reason. The meaning of this context is
--      # dependent on the reason:
--      # - EmbedderExtensionSentMessageToCachedFrame: the extension ID.
--      #
--      optional string context
--      optional array of BackForwardCacheBlockingDetails details
--
--  experimental type BackForwardCacheNotRestoredExplanationTree extends object
--    properties
--      # URL of each frame
--      string url
--      # Not restored reasons of each frame
--      array of BackForwardCacheNotRestoredExplanation explanations
--      # Array of children frame
--      array of BackForwardCacheNotRestoredExplanationTree children
--
--  # Fired for failed bfcache history navigations if BackForwardCache feature is enabled. Do
--  # not assume any ordering with the Page.frameNavigated event. This event is fired only for
--  # main-frame history navigation where the document changes (non-same-document navigations),
--  # when bfcache navigation fails.
--  experimental event backForwardCacheNotUsed
--    parameters
--      # The loader id for the associated navigation.
--      Network.LoaderId loaderId
--      # The frame id of the associated frame.
--      FrameId frameId
--      # Array of reasons why the page could not be cached. This must not be empty.
--      array of BackForwardCacheNotRestoredExplanation notRestoredExplanations
--      # Tree structure of reasons why the page could not be cached for each frame.
--      optional BackForwardCacheNotRestoredExplanationTree notRestoredExplanationsTree
--
--  event loadEventFired
--    parameters
--      Network.MonotonicTime timestamp
--
--  # Fired when same-document navigation happens, e.g. due to history API usage or anchor navigation.
--  experimental event navigatedWithinDocument
--    parameters
--      # Id of the frame.
--      FrameId frameId
--      # Frame's new url.
--      string url
--      # Navigation type
--      enum navigationType
--        # Navigation due to fragment navigation.
--        fragment
--        # Navigation due to history API usage.
--        historyApi
--        # Navigation due to other reasons.
--        other
--
--
--  # Compressed image data requested by the `startScreencast`.
--  experimental event screencastFrame
--    parameters
--      # Base64-encoded compressed image.
--      binary data
--      # Screencast frame metadata.
--      ScreencastFrameMetadata metadata
--      # Frame number.
--      integer sessionId
--
--  # Fired when the page with currently enabled screencast was shown or hidden `.
--  experimental event screencastVisibilityChanged
--    parameters
--      # True if the page is visible.
--      boolean visible
--
--  # Fired when a new window is going to be opened, via window.open(), link click, form submission,
--  # etc.
--  event windowOpen
--    parameters
--      # The URL for the new window.
--      string url
--      # Window name.
--      string windowName
--      # An array of enabled window features.
--      array of string windowFeatures
--      # Whether or not it was triggered by user gesture.
--      boolean userGesture
--
--  # Issued for every compilation cache generated.
--  experimental event compilationCacheProduced
--    parameters
--      string url
--      # Base64-encoded data
--      binary data
--
--  # Enable/disable prerendering manually.
--  #
--  # This command is a short-term solution for https://crbug.com/1440085.
--  # See https://docs.google.com/document/d/12HVmFxYj5Jc-eJr5OmWsa2bqTJsbgGLKI6ZIyx0_wpA
--  # for more details.
--  #
--  # TODO(https://crbug.com/1440085): Remove this once Puppeteer supports tab targets.
--  experimental command setPrerenderingAllowed
--    parameters
--      boolean isAllowed
--
--domain Performance
--
--  # Run-time execution metric.
--  type Metric extends object
--    properties
--      # Metric name.
--      string name
--      # Metric value.
--      number value
--
--  # Disable collecting and reporting metrics.
--  command disable
--
--  # Enable collecting and reporting metrics.
--  command enable
--    parameters
--      # Time domain to use for collecting and reporting duration metrics.
--      optional enum timeDomain
--        # Use monotonically increasing abstract time (default).
--        timeTicks
--        # Use thread running time.
--        threadTicks
--
--  # Sets time domain to use for collecting and reporting duration metrics.
--  # Note that this must be called before enabling metrics collection. Calling
--  # this method while metrics collection is enabled returns an error.
--  experimental deprecated command setTimeDomain
--    parameters
--      # Time domain
--      enum timeDomain
--        # Use monotonically increasing abstract time (default).
--        timeTicks
--        # Use thread running time.
--        threadTicks
--
--  # Retrieve current values of run-time metrics.
--  command getMetrics
--    returns
--      # Current values for run-time metrics.
--      array of Metric metrics
--
--  # Current values of the metrics.
--  event metrics
--    parameters
--      # Current values of the metrics.
--      array of Metric metrics
--      # Timestamp title.
--      string title
--
--# Reporting of performance timeline events, as specified in
--# https://w3c.github.io/performance-timeline/#dom-performanceobserver.
--experimental domain PerformanceTimeline
--  depends on DOM
--  depends on Network
--
--  # See https://github.com/WICG/LargestContentfulPaint and largest_contentful_paint.idl
--  type LargestContentfulPaint extends object
--    properties
--      Network.TimeSinceEpoch renderTime
--      Network.TimeSinceEpoch loadTime
--      # The number of pixels being painted.
--      number size
--      # The id attribute of the element, if available.
--      optional string elementId
--      # The URL of the image (may be trimmed).
--      optional string url
--      optional DOM.BackendNodeId nodeId
--
--  type LayoutShiftAttribution extends object
--    properties
--      DOM.Rect previousRect
--      DOM.Rect currentRect
--      optional DOM.BackendNodeId nodeId
--
--  # See https://wicg.github.io/layout-instability/#sec-layout-shift and layout_shift.idl
--  type LayoutShift extends object
--    properties
--      # Score increment produced by this event.
--      number value
--      boolean hadRecentInput
--      Network.TimeSinceEpoch lastInputTime
--      array of LayoutShiftAttribution sources
--
--  type TimelineEvent extends object
--    properties
--      # Identifies the frame that this event is related to. Empty for non-frame targets.
--      Page.FrameId frameId
--      # The event type, as specified in https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype
--      # This determines which of the optional "details" fields is present.
--      string type
--      # Name may be empty depending on the type.
--      string name
--      # Time in seconds since Epoch, monotonically increasing within document lifetime.
--      Network.TimeSinceEpoch time
--      # Event duration, if applicable.
--      optional number duration
--      optional LargestContentfulPaint lcpDetails
--      optional LayoutShift layoutShiftDetails
--
--  # Previously buffered events would be reported before method returns.
--  # See also: timelineEventAdded
--  command enable
--    parameters
--      # The types of event to report, as specified in
--      # https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype
--      # The specified filter overrides any previous filters, passing empty
--      # filter disables recording.
--      # Note that not all types exposed to the web platform are currently supported.
--      array of string eventTypes
--
--  # Sent when a performance timeline event is added. See reportPerformanceTimeline method.
--  event timelineEventAdded
--    parameters
--      TimelineEvent event
--
--# Security
--domain Security
--
--  # An internal certificate ID value.
--  type CertificateId extends integer
--
--  # A description of mixed content (HTTP resources on HTTPS pages), as defined by
--  # https://www.w3.org/TR/mixed-content/#categories
--  type MixedContentType extends string
--    enum
--      blockable
--      optionally-blockable
--      none
--
--  # The security level of a page or resource.
--  type SecurityState extends string
--    enum
--      unknown
--      neutral
--      insecure
--      secure
--      info
--      insecure-broken
--
--  # Details about the security state of the page certificate.
--  experimental type CertificateSecurityState extends object
--    properties
--      # Protocol name (e.g. "TLS 1.2" or "QUIC").
--      string protocol
--      # Key Exchange used by the connection, or the empty string if not applicable.
--      string keyExchange
--      # (EC)DH group used by the connection, if applicable.
--      optional string keyExchangeGroup
--      # Cipher name.
--      string cipher
--      # TLS MAC. Note that AEAD ciphers do not have separate MACs.
--      optional string mac
--      # Page certificate.
--      array of string certificate
--      # Certificate subject name.
--      string subjectName
--      # Name of the issuing CA.
--      string issuer
--      # Certificate valid from date.
--      Network.TimeSinceEpoch validFrom
--      # Certificate valid to (expiration) date
--      Network.TimeSinceEpoch validTo
--      # The highest priority network error code, if the certificate has an error.
--      optional string certificateNetworkError
--      # True if the certificate uses a weak signature algorithm.
--      boolean certificateHasWeakSignature
--      # True if the certificate has a SHA1 signature in the chain.
--      boolean certificateHasSha1Signature
--      # True if modern SSL
--      boolean modernSSL
--      # True if the connection is using an obsolete SSL protocol.
--      boolean obsoleteSslProtocol
--      # True if the connection is using an obsolete SSL key exchange.
--      boolean obsoleteSslKeyExchange
--      # True if the connection is using an obsolete SSL cipher.
--      boolean obsoleteSslCipher
--      # True if the connection is using an obsolete SSL signature.
--      boolean obsoleteSslSignature
--
--  experimental type SafetyTipStatus extends string
--    enum
--      badReputation
--      lookalike
--
--  experimental type SafetyTipInfo extends object
--    properties
--      # Describes whether the page triggers any safety tips or reputation warnings. Default is unknown.
--      SafetyTipStatus safetyTipStatus
--      # The URL the safety tip suggested ("Did you mean?"). Only filled in for lookalike matches.
--      optional string safeUrl
--
--  # Security state information about the page.
--  experimental type VisibleSecurityState extends object
--    properties
--      # The security level of the page.
--      SecurityState securityState
--      # Security state details about the page certificate.
--      optional CertificateSecurityState certificateSecurityState
--      # The type of Safety Tip triggered on the page. Note that this field will be set even if the Safety Tip UI was not actually shown.
--      optional SafetyTipInfo safetyTipInfo
--      # Array of security state issues ids.
--      array of string securityStateIssueIds
--
--  # An explanation of an factor contributing to the security state.
--  type SecurityStateExplanation extends object
--    properties
--      # Security state representing the severity of the factor being explained.
--      SecurityState securityState
--      # Title describing the type of factor.
--      string title
--      # Short phrase describing the type of factor.
--      string summary
--      # Full text explanation of the factor.
--      string description
--      # The type of mixed content described by the explanation.
--      MixedContentType mixedContentType
--      # Page certificate.
--      array of string certificate
--      # Recommendations to fix any issues.
--      optional array of string recommendations
--
--  # Information about insecure content on the page.
--  deprecated type InsecureContentStatus extends object
--    properties
--      # Always false.
--      boolean ranMixedContent
--      # Always false.
--      boolean displayedMixedContent
--      # Always false.
--      boolean containedMixedForm
--      # Always false.
--      boolean ranContentWithCertErrors
--      # Always false.
--      boolean displayedContentWithCertErrors
--      # Always set to unknown.
--      SecurityState ranInsecureContentStyle
--      # Always set to unknown.
--      SecurityState displayedInsecureContentStyle
--
--  # The action to take when a certificate error occurs. continue will continue processing the
--  # request and cancel will cancel the request.
--  type CertificateErrorAction extends string
--    enum
--      continue
--      cancel
--
--  # Disables tracking security state changes.
--  command disable
--
--  # Enables tracking security state changes.
--  command enable
--
--  # Enable/disable whether all certificate errors should be ignored.
--  command setIgnoreCertificateErrors
--    parameters
--      # If true, all certificate errors will be ignored.
--      boolean ignore
--
--  # Handles a certificate error that fired a certificateError event.
--  deprecated command handleCertificateError
--    parameters
--      # The ID of the event.
--      integer eventId
--      # The action to take on the certificate error.
--      CertificateErrorAction action
--
--  # Enable/disable overriding certificate errors. If enabled, all certificate error events need to
--  # be handled by the DevTools client and should be answered with `handleCertificateError` commands.
--  deprecated command setOverrideCertificateErrors
--    parameters
--      # If true, certificate errors will be overridden.
--      boolean override
--
--  # There is a certificate error. If overriding certificate errors is enabled, then it should be
--  # handled with the `handleCertificateError` command. Note: this event does not fire if the
--  # certificate error has been allowed internally. Only one client per target should override
--  # certificate errors at the same time.
--  deprecated event certificateError
--    parameters
--      # The ID of the event.
--      integer eventId
--      # The type of the error.
--      string errorType
--      # The url that was requested.
--      string requestURL
--
--  # The security state of the page changed.
--  experimental event visibleSecurityStateChanged
--    parameters
--      # Security state information about the page.
--      VisibleSecurityState visibleSecurityState
--
--  # The security state of the page changed. No longer being sent.
--  deprecated event securityStateChanged
--    parameters
--      # Security state.
--      SecurityState securityState
--      # True if the page was loaded over cryptographic transport such as HTTPS.
--      deprecated boolean schemeIsCryptographic
--      # Previously a list of explanations for the security state. Now always
--      # empty.
--      deprecated array of SecurityStateExplanation explanations
--      # Information about insecure content on the page.
--      deprecated InsecureContentStatus insecureContentStatus
--      # Overrides user-visible description of the state. Always omitted.
--      deprecated optional string summary
--
--experimental domain ServiceWorker
--  depends on Target
--
--  type RegistrationID extends string
--
--  # ServiceWorker registration.
--  type ServiceWorkerRegistration extends object
--    properties
--      RegistrationID registrationId
--      string scopeURL
--      boolean isDeleted
--
--  type ServiceWorkerVersionRunningStatus extends string
--    enum
--      stopped
--      starting
--      running
--      stopping
--
--  type ServiceWorkerVersionStatus extends string
--    enum
--      new
--      installing
--      installed
--      activating
--      activated
--      redundant
--
--  # ServiceWorker version.
--  type ServiceWorkerVersion extends object
--    properties
--      string versionId
--      RegistrationID registrationId
--      string scriptURL
--      ServiceWorkerVersionRunningStatus runningStatus
--      ServiceWorkerVersionStatus status
--      # The Last-Modified header value of the main script.
--      optional number scriptLastModified
--      # The time at which the response headers of the main script were received from the server.
--      # For cached script it is the last time the cache entry was validated.
--      optional number scriptResponseTime
--      optional array of Target.TargetID controlledClients
--      optional Target.TargetID targetId
--      optional string routerRules
--
--  # ServiceWorker error message.
--  type ServiceWorkerErrorMessage extends object
--    properties
--      string errorMessage
--      RegistrationID registrationId
--      string versionId
--      string sourceURL
--      integer lineNumber
--      integer columnNumber
--
--  command deliverPushMessage
--    parameters
--      string origin
--      RegistrationID registrationId
--      string data
--
--  command disable
--
--  command dispatchSyncEvent
--    parameters
--      string origin
--      RegistrationID registrationId
--      string tag
--      boolean lastChance
--
--  command dispatchPeriodicSyncEvent
--    parameters
--      string origin
--      RegistrationID registrationId
--      string tag
--
--  command enable
--
--  command setForceUpdateOnPageLoad
--    parameters
--      boolean forceUpdateOnPageLoad
--
--  command skipWaiting
--    parameters
--      string scopeURL
--
--  command startWorker
--    parameters
--      string scopeURL
--
--  command stopAllWorkers
--
--  command stopWorker
--    parameters
--      string versionId
--
--  command unregister
--    parameters
--      string scopeURL
--
--  command updateRegistration
--    parameters
--      string scopeURL
--
--  event workerErrorReported
--    parameters
--      ServiceWorkerErrorMessage errorMessage
--
--  event workerRegistrationUpdated
--    parameters
--      array of ServiceWorkerRegistration registrations
--
--  event workerVersionUpdated
--    parameters
--      array of ServiceWorkerVersion versions
--
--experimental domain Storage
--  depends on Browser
--  depends on Network
--
--  type SerializedStorageKey extends string
--
--  # Enum of possible storage types.
--  type StorageType extends string
--    enum
--      cookies
--      file_systems
--      indexeddb
--      local_storage
--      shader_cache
--      websql
--      service_workers
--      cache_storage
--      interest_groups
--      shared_storage
--      storage_buckets
--      all
--      other
--
--  # Usage for a storage type.
--  type UsageForType extends object
--    properties
--      # Name of storage type.
--      StorageType storageType
--      # Storage usage (bytes).
--      number usage
--
--  # Pair of issuer origin and number of available (signed, but not used) Trust
--  # Tokens from that issuer.
--  experimental type TrustTokens extends object
--    properties
--      string issuerOrigin
--      number count
--
--  # Protected audience interest group auction identifier.
--  type InterestGroupAuctionId extends string
--
--  # Enum of interest group access types.
--  type InterestGroupAccessType extends string
--    enum
--      join
--      leave
--      update
--      loaded
--      bid
--      win
--      additionalBid
--      additionalBidWin
--      topLevelBid
--      topLevelAdditionalBid
--      clear
--
--  # Enum of auction events.
--  type InterestGroupAuctionEventType extends string
--    enum
--      started
--      configResolved
--
--  # Enum of network fetches auctions can do.
--  type InterestGroupAuctionFetchType extends string
--    enum
--      bidderJs
--      bidderWasm
--      sellerJs
--      bidderTrustedSignals
--      sellerTrustedSignals
--
--  # Enum of shared storage access scopes.
--  type SharedStorageAccessScope extends string
--    enum
--      window
--      sharedStorageWorklet
--      protectedAudienceWorklet
--      header
--
--  # Enum of shared storage access methods.
--  type SharedStorageAccessMethod extends string
--    enum
--      addModule
--      createWorklet
--      selectURL
--      run
--      batchUpdate
--      set
--      append
--      delete
--      clear
--      get
--      keys
--      values
--      entries
--      length
--      remainingBudget
--
--  # Struct for a single key-value pair in an origin's shared storage.
--  type SharedStorageEntry extends object
--    properties
--      string key
--      string value
--
--  # Details for an origin's shared storage.
--  type SharedStorageMetadata extends object
--    properties
--      # Time when the origin's shared storage was last created.
--      Network.TimeSinceEpoch creationTime
--      # Number of key-value pairs stored in origin's shared storage.
--      integer length
--      # Current amount of bits of entropy remaining in the navigation budget.
--      number remainingBudget
--      # Total number of bytes stored as key-value pairs in origin's shared
--      # storage.
--      integer bytesUsed
--
--  # Represents a dictionary object passed in as privateAggregationConfig to
--  # run or selectURL.
--  type SharedStoragePrivateAggregationConfig extends object
--    properties
--      # The chosen aggregation service deployment.
--      optional string aggregationCoordinatorOrigin
--      # The context ID provided.
--      optional string contextId
--      # Configures the maximum size allowed for filtering IDs.
--      integer filteringIdMaxBytes
--      # The limit on the number of contributions in the final report.
--      optional integer maxContributions
--
--  # Pair of reporting metadata details for a candidate URL for `selectURL()`.
--  type SharedStorageReportingMetadata extends object
--    properties
--      string eventType
--      string reportingUrl
--
--  # Bundles a candidate URL with its reporting metadata.
--  type SharedStorageUrlWithMetadata extends object
--    properties
--      # Spec of candidate URL.
--      string url
--      # Any associated reporting metadata.
--      array of SharedStorageReportingMetadata reportingMetadata
--
--  # Bundles the parameters for shared storage access events whose
--  # presence/absence can vary according to SharedStorageAccessType.
--  type SharedStorageAccessParams extends object
--    properties
--      # Spec of the module script URL.
--      # Present only for SharedStorageAccessMethods: addModule and
--      # createWorklet.
--      optional string scriptSourceUrl
--      # String denoting "context-origin", "script-origin", or a custom
--      # origin to be used as the worklet's data origin.
--      # Present only for SharedStorageAccessMethod: createWorklet.
--      optional string dataOrigin
--      # Name of the registered operation to be run.
--      # Present only for SharedStorageAccessMethods: run and selectURL.
--      optional string operationName
--      # ID of the operation call.
--      # Present only for SharedStorageAccessMethods: run and selectURL.
--      optional string operationId
--      # Whether or not to keep the worket alive for future run or selectURL
--      # calls.
--      # Present only for SharedStorageAccessMethods: run and selectURL.
--      optional boolean keepAlive
--      # Configures the private aggregation options.
--      # Present only for SharedStorageAccessMethods: run and selectURL.
--      optional SharedStoragePrivateAggregationConfig privateAggregationConfig
--      # The operation's serialized data in bytes (converted to a string).
--      # Present only for SharedStorageAccessMethods: run and selectURL.
--      # TODO(crbug.com/401011862): Consider updating this parameter to binary.
--      optional string serializedData
--      # Array of candidate URLs' specs, along with any associated metadata.
--      # Present only for SharedStorageAccessMethod: selectURL.
--      optional array of SharedStorageUrlWithMetadata urlsWithMetadata
--      # Spec of the URN:UUID generated for a selectURL call.
--      # Present only for SharedStorageAccessMethod: selectURL.
--      optional string urnUuid
--      # Key for a specific entry in an origin's shared storage.
--      # Present only for SharedStorageAccessMethods: set, append, delete, and
--      # get.
--      optional string key
--      # Value for a specific entry in an origin's shared storage.
--      # Present only for SharedStorageAccessMethods: set and append.
--      optional string value
--      # Whether or not to set an entry for a key if that key is already present.
--      # Present only for SharedStorageAccessMethod: set.
--      optional boolean ignoreIfPresent
--      # A number denoting the (0-based) order of the worklet's
--      # creation relative to all other shared storage worklets created by
--      # documents using the current storage partition.
--      # Present only for SharedStorageAccessMethods: addModule, createWorklet.
--      optional integer workletOrdinal
--      # Hex representation of the DevTools token used as the TargetID for the
--      # associated shared storage worklet.
--      # Present only for SharedStorageAccessMethods: addModule, createWorklet,
--      # run, selectURL, and any other SharedStorageAccessMethod when the
--      # SharedStorageAccessScope is sharedStorageWorklet.
--      optional Target.TargetID workletTargetId
--      # Name of the lock to be acquired, if present.
--      # Optionally present only for SharedStorageAccessMethods: batchUpdate,
--      # set, append, delete, and clear.
--      optional string withLock
--      # If the method has been called as part of a batchUpdate, then this
--      # number identifies the batch to which it belongs.
--      # Optionally present only for SharedStorageAccessMethods:
--      # batchUpdate (required), set, append, delete, and clear.
--      optional string batchUpdateId
--      # Number of modifier methods sent in batch.
--      # Present only for SharedStorageAccessMethod: batchUpdate.
--      optional integer batchSize
--
--  type StorageBucketsDurability extends string
--    enum
--      relaxed
--      strict
--
--  type StorageBucket extends object
--    properties
--      SerializedStorageKey storageKey
--      # If not specified, it is the default bucket of the storageKey.
--      optional string name
--
--  type StorageBucketInfo extends object
--    properties
--      StorageBucket bucket
--      string id
--      Network.TimeSinceEpoch expiration
--      # Storage quota (bytes).
--      number quota
--      boolean persistent
--      StorageBucketsDurability durability
--
--  # Returns a storage key given a frame id.
--  command getStorageKeyForFrame
--    parameters
--      Page.FrameId frameId
--    returns
--      SerializedStorageKey storageKey
--
--  # Clears storage for origin.
--  command clearDataForOrigin
--    parameters
--      # Security origin.
--      string origin
--      # Comma separated list of StorageType to clear.
--      string storageTypes
--
--  # Clears storage for storage key.
--  command clearDataForStorageKey
--    parameters
--      # Storage key.
--      string storageKey
--      # Comma separated list of StorageType to clear.
--      string storageTypes
--
--  # Returns all browser cookies.
--  command getCookies
--    parameters
--      # Browser context to use when called on the browser endpoint.
--      optional Browser.BrowserContextID browserContextId
--    returns
--      # Array of cookie objects.
--      array of Network.Cookie cookies
--
--  # Sets given cookies.
--  command setCookies
--    parameters
--      # Cookies to be set.
--      array of Network.CookieParam cookies
--      # Browser context to use when called on the browser endpoint.
--      optional Browser.BrowserContextID browserContextId
--
--  # Clears cookies.
--  command clearCookies
--    parameters
--      # Browser context to use when called on the browser endpoint.
--      optional Browser.BrowserContextID browserContextId
--
--  # Returns usage and quota in bytes.
--  command getUsageAndQuota
--    parameters
--      # Security origin.
--      string origin
--    returns
--      # Storage usage (bytes).
--      number usage
--      # Storage quota (bytes).
--      number quota
--      # Whether or not the origin has an active storage quota override
--      boolean overrideActive
--      # Storage usage per type (bytes).
--      array of UsageForType usageBreakdown
--
--  # Override quota for the specified origin
--  experimental command overrideQuotaForOrigin
--    parameters
--      # Security origin.
--      string origin
--      # The quota size (in bytes) to override the original quota with.
--      # If this is called multiple times, the overridden quota will be equal to
--      # the quotaSize provided in the final call. If this is called without
--      # specifying a quotaSize, the quota will be reset to the default value for
--      # the specified origin. If this is called multiple times with different
--      # origins, the override will be maintained for each origin until it is
--      # disabled (called without a quotaSize).
--      optional number quotaSize
--
--  # Registers origin to be notified when an update occurs to its cache storage list.
--  command trackCacheStorageForOrigin
--    parameters
--      # Security origin.
--      string origin
--
--  # Registers storage key to be notified when an update occurs to its cache storage list.
--  command trackCacheStorageForStorageKey
--    parameters
--      # Storage key.
--      string storageKey
--
--  # Registers origin to be notified when an update occurs to its IndexedDB.
--  command trackIndexedDBForOrigin
--    parameters
--      # Security origin.
--      string origin
--
--  # Registers storage key to be notified when an update occurs to its IndexedDB.
--  command trackIndexedDBForStorageKey
--    parameters
--      # Storage key.
--      string storageKey
--
--  # Unregisters origin from receiving notifications for cache storage.
--  command untrackCacheStorageForOrigin
--    parameters
--      # Security origin.
--      string origin
--
--  # Unregisters storage key from receiving notifications for cache storage.
--  command untrackCacheStorageForStorageKey
--    parameters
--      # Storage key.
--      string storageKey
--
--  # Unregisters origin from receiving notifications for IndexedDB.
--  command untrackIndexedDBForOrigin
--    parameters
--      # Security origin.
--      string origin
--
--  # Unregisters storage key from receiving notifications for IndexedDB.
--  command untrackIndexedDBForStorageKey
--    parameters
--      # Storage key.
--      string storageKey
--
--  # Returns the number of stored Trust Tokens per issuer for the
--  # current browsing context.
--  experimental command getTrustTokens
--    returns
--      array of TrustTokens tokens
--
--  # Removes all Trust Tokens issued by the provided issuerOrigin.
--  # Leaves other stored data, including the issuer's Redemption Records, intact.
--  experimental command clearTrustTokens
--    parameters
--      string issuerOrigin
--    returns
--      # True if any tokens were deleted, false otherwise.
--      boolean didDeleteTokens
--
--  # Gets details for a named interest group.
--  experimental command getInterestGroupDetails
--    parameters
--      string ownerOrigin
--      string name
--    returns
--      # This largely corresponds to:
--      # https://wicg.github.io/turtledove/#dictdef-generatebidinterestgroup
--      # but has absolute expirationTime instead of relative lifetimeMs and
--      # also adds joiningOrigin.
--      object details
--
--  # Enables/Disables issuing of interestGroupAccessed events.
--  experimental command setInterestGroupTracking
--    parameters
--      boolean enable
--
--  # Enables/Disables issuing of interestGroupAuctionEventOccurred and
--  # interestGroupAuctionNetworkRequestCreated.
--  experimental command setInterestGroupAuctionTracking
--    parameters
--      boolean enable
--
--  # Gets metadata for an origin's shared storage.
--  experimental command getSharedStorageMetadata
--    parameters
--      string ownerOrigin
--    returns
--      SharedStorageMetadata metadata
--
--  # Gets the entries in an given origin's shared storage.
--  experimental command getSharedStorageEntries
--    parameters
--      string ownerOrigin
--    returns
--      array of SharedStorageEntry entries
--
--  # Sets entry with `key` and `value` for a given origin's shared storage.
--  experimental command setSharedStorageEntry
--    parameters
--      string ownerOrigin
--      string key
--      string value
--      # If `ignoreIfPresent` is included and true, then only sets the entry if
--      # `key` doesn't already exist.
--      optional boolean ignoreIfPresent
--
--  # Deletes entry for `key` (if it exists) for a given origin's shared storage.
--  experimental command deleteSharedStorageEntry
--    parameters
--      string ownerOrigin
--      string key
--
--  # Clears all entries for a given origin's shared storage.
--  experimental command clearSharedStorageEntries
--    parameters
--      string ownerOrigin
--
--  # Resets the budget for `ownerOrigin` by clearing all budget withdrawals.
--  experimental command resetSharedStorageBudget
--    parameters
--      string ownerOrigin
--
--  # Enables/disables issuing of sharedStorageAccessed events.
--  experimental command setSharedStorageTracking
--    parameters
--      boolean enable
--
--  # Set tracking for a storage key's buckets.
--  experimental command setStorageBucketTracking
--    parameters
--      string storageKey
--      boolean enable
--
--  # Deletes the Storage Bucket with the given storage key and bucket name.
--  experimental command deleteStorageBucket
--    parameters
--      StorageBucket bucket
--
--  # Deletes state for sites identified as potential bounce trackers, immediately.
--  experimental command runBounceTrackingMitigations
--    returns
--      array of string deletedSites
--
--  # A cache's contents have been modified.
--  event cacheStorageContentUpdated
--    parameters
--      # Origin to update.
--      string origin
--      # Storage key to update.
--      string storageKey
--      # Storage bucket to update.
--      string bucketId
--      # Name of cache in origin.
--      string cacheName
--
--  # A cache has been added/deleted.
--  event cacheStorageListUpdated
--    parameters
--      # Origin to update.
--      string origin
--      # Storage key to update.
--      string storageKey
--      # Storage bucket to update.
--      string bucketId
--
--  # The origin's IndexedDB object store has been modified.
--  event indexedDBContentUpdated
--    parameters
--      # Origin to update.
--      string origin
--      # Storage key to update.
--      string storageKey
--      # Storage bucket to update.
--      string bucketId
--      # Database to update.
--      string databaseName
--      # ObjectStore to update.
--      string objectStoreName
--
--  # The origin's IndexedDB database list has been modified.
--  event indexedDBListUpdated
--    parameters
--      # Origin to update.
--      string origin
--      # Storage key to update.
--      string storageKey
--      # Storage bucket to update.
--      string bucketId
--
--  # One of the interest groups was accessed. Note that these events are global
--  # to all targets sharing an interest group store.
--  event interestGroupAccessed
--    parameters
--      Network.TimeSinceEpoch accessTime
--      InterestGroupAccessType type
--      string ownerOrigin
--      string name
--      # For topLevelBid/topLevelAdditionalBid, and when appropriate,
--      # win and additionalBidWin
--      optional string componentSellerOrigin
--      # For bid or somethingBid event, if done locally and not on a server.
--      optional number bid
--      optional string bidCurrency
--      # For non-global events --- links to interestGroupAuctionEvent
--      optional InterestGroupAuctionId uniqueAuctionId
--
--  # An auction involving interest groups is taking place. These events are
--  # target-specific.
--  event interestGroupAuctionEventOccurred
--    parameters
--      Network.TimeSinceEpoch eventTime
--      InterestGroupAuctionEventType type
--      InterestGroupAuctionId uniqueAuctionId
--      # Set for child auctions.
--      optional InterestGroupAuctionId parentAuctionId
--      # Set for started and configResolved
--      optional object auctionConfig
--
--  # Specifies which auctions a particular network fetch may be related to, and
--  # in what role. Note that it is not ordered with respect to
--  # Network.requestWillBeSent (but will happen before loadingFinished
--  # loadingFailed).
--  event interestGroupAuctionNetworkRequestCreated
--    parameters
--      InterestGroupAuctionFetchType type
--      Network.RequestId requestId
--      # This is the set of the auctions using the worklet that issued this
--      # request.  In the case of trusted signals, it's possible that only some of
--      # them actually care about the keys being queried.
--      array of InterestGroupAuctionId auctions
--
--  # Shared storage was accessed by the associated page.
--  # The following parameters are included in all events.
--  event sharedStorageAccessed
--    parameters
--      # Time of the access.
--      Network.TimeSinceEpoch accessTime
--      # Enum value indicating the access scope.
--      SharedStorageAccessScope scope
--      # Enum value indicating the Shared Storage API method invoked.
--      SharedStorageAccessMethod method
--      # DevTools Frame Token for the primary frame tree's root.
--      Page.FrameId mainFrameId
--      # Serialization of the origin owning the Shared Storage data.
--      string ownerOrigin
--      # Serialization of the site owning the Shared Storage data.
--      string ownerSite
--      # The sub-parameters wrapped by `params` are all optional and their
--      # presence/absence depends on `type`.
--      SharedStorageAccessParams params
--
--  # A shared storage run or selectURL operation finished its execution.
--  # The following parameters are included in all events.
--  event sharedStorageWorkletOperationExecutionFinished
--    parameters
--      # Time that the operation finished.
--      Network.TimeSinceEpoch finishedTime
--      # Time, in microseconds, from start of shared storage JS API call until
--      # end of operation execution in the worklet.
--      integer executionTime
--      # Enum value indicating the Shared Storage API method invoked.
--      SharedStorageAccessMethod method
--      # ID of the operation call.
--      string operationId
--      # Hex representation of the DevTools token used as the TargetID for the
--      # associated shared storage worklet.
--      Target.TargetID workletTargetId
--      # DevTools Frame Token for the primary frame tree's root.
--      Page.FrameId mainFrameId
--      # Serialization of the origin owning the Shared Storage data.
--      string ownerOrigin
--
--  event storageBucketCreatedOrUpdated
--    parameters
--      StorageBucketInfo bucketInfo
--
--  event storageBucketDeleted
--    parameters
--      string bucketId
--
--  # https://wicg.github.io/attribution-reporting-api/
--  experimental command setAttributionReportingLocalTestingMode
--    parameters
--      # If enabled, noise is suppressed and reports are sent immediately.
--      boolean enabled
--
--  # Enables/disables issuing of Attribution Reporting events.
--  experimental command setAttributionReportingTracking
--    parameters
--      boolean enable
--
--  # Sends all pending Attribution Reports immediately, regardless of their
--  # scheduled report time.
--  experimental command sendPendingAttributionReports
--    returns
--      # The number of reports that were sent.
--      integer numSent
--
--  experimental type AttributionReportingSourceType extends string
--    enum
--      navigation
--      event
--
--  experimental type UnsignedInt64AsBase10 extends string
--  experimental type UnsignedInt128AsBase16 extends string
--  experimental type SignedInt64AsBase10 extends string
--
--  experimental type AttributionReportingFilterDataEntry extends object
--    properties
--      string key
--      array of string values
--
--  experimental type AttributionReportingFilterConfig extends object
--    properties
--      array of AttributionReportingFilterDataEntry filterValues
--      # duration in seconds
--      optional integer lookbackWindow
--
--  experimental type AttributionReportingFilterPair extends object
--    properties
--      array of AttributionReportingFilterConfig filters
--      array of AttributionReportingFilterConfig notFilters
--
--  experimental type AttributionReportingAggregationKeysEntry extends object
--    properties
--      string key
--      UnsignedInt128AsBase16 value
--
--  experimental type AttributionReportingEventReportWindows extends object
--    properties
--      # duration in seconds
--      integer start
--      # duration in seconds
--      array of integer ends
--
--  experimental type AttributionReportingTriggerDataMatching extends string
--    enum
--      exact
--      modulus
--
--  experimental type AttributionReportingAggregatableDebugReportingData extends object
--    properties
--      UnsignedInt128AsBase16 keyPiece
--      # number instead of integer because not all uint32 can be represented by
--      # int
--      number value
--      array of string types
--
--  experimental type AttributionReportingAggregatableDebugReportingConfig extends object
--    properties
--      # number instead of integer because not all uint32 can be represented by
--      # int, only present for source registrations
--      optional number budget
--      UnsignedInt128AsBase16 keyPiece
--      array of AttributionReportingAggregatableDebugReportingData debugData
--      optional string aggregationCoordinatorOrigin
--
--  experimental type AttributionScopesData extends object
--    properties
--      array of string values
--      # number instead of integer because not all uint32 can be represented by
--      # int
--      number limit
--      number maxEventStates
--
--  experimental type AttributionReportingNamedBudgetDef extends object
--    properties
--      string name
--      integer budget
--
--  experimental type AttributionReportingSourceRegistration extends object
--    properties
--      Network.TimeSinceEpoch time
--      # duration in seconds
--      integer expiry
--      # number instead of integer because not all uint32 can be represented by
--      # int
--      array of number triggerData
--      AttributionReportingEventReportWindows eventReportWindows
--      # duration in seconds
--      integer aggregatableReportWindow
--      AttributionReportingSourceType type
--      string sourceOrigin
--      string reportingOrigin
--      array of string destinationSites
--      UnsignedInt64AsBase10 eventId
--      SignedInt64AsBase10 priority
--      array of AttributionReportingFilterDataEntry filterData
--      array of AttributionReportingAggregationKeysEntry aggregationKeys
--      optional UnsignedInt64AsBase10 debugKey
--      AttributionReportingTriggerDataMatching triggerDataMatching
--      SignedInt64AsBase10 destinationLimitPriority
--      AttributionReportingAggregatableDebugReportingConfig aggregatableDebugReportingConfig
--      optional AttributionScopesData scopesData
--      integer maxEventLevelReports
--      array of AttributionReportingNamedBudgetDef namedBudgets
--      boolean debugReporting
--      number eventLevelEpsilon
--
--  experimental type AttributionReportingSourceRegistrationResult extends string
--    enum
--      success
--      internalError
--      insufficientSourceCapacity
--      insufficientUniqueDestinationCapacity
--      excessiveReportingOrigins
--      prohibitedByBrowserPolicy
--      successNoised
--      destinationReportingLimitReached
--      destinationGlobalLimitReached
--      destinationBothLimitsReached
--      reportingOriginsPerSiteLimitReached
--      exceedsMaxChannelCapacity
--      exceedsMaxScopesChannelCapacity
--      exceedsMaxTriggerStateCardinality
--      exceedsMaxEventStatesLimit
--      destinationPerDayReportingLimitReached
--
--  experimental event attributionReportingSourceRegistered
--    parameters
--      AttributionReportingSourceRegistration registration
--      AttributionReportingSourceRegistrationResult result
--
--  experimental type AttributionReportingSourceRegistrationTimeConfig extends string
--    enum
--      include
--      exclude
--
--  experimental type AttributionReportingAggregatableValueDictEntry extends object
--    properties
--      string key
--      # number instead of integer because not all uint32 can be represented by
--      # int
--      number value
--      UnsignedInt64AsBase10 filteringId
--
--
--  experimental type AttributionReportingAggregatableValueEntry extends object
--    properties
--      array of AttributionReportingAggregatableValueDictEntry values
--      AttributionReportingFilterPair filters
--
--  experimental type AttributionReportingEventTriggerData extends object
--    properties
--      UnsignedInt64AsBase10 data
--      SignedInt64AsBase10 priority
--      optional UnsignedInt64AsBase10 dedupKey
--      AttributionReportingFilterPair filters
--
--  experimental type AttributionReportingAggregatableTriggerData extends object
--    properties
--      UnsignedInt128AsBase16 keyPiece
--      array of string sourceKeys
--      AttributionReportingFilterPair filters
--
--  experimental type AttributionReportingAggregatableDedupKey extends object
--    properties
--      optional UnsignedInt64AsBase10 dedupKey
--      AttributionReportingFilterPair filters
--
--  experimental type AttributionReportingNamedBudgetCandidate extends object
--    properties
--      optional string name
--      AttributionReportingFilterPair filters
--
--  experimental type AttributionReportingTriggerRegistration extends object
--    properties
--      AttributionReportingFilterPair filters
--      optional UnsignedInt64AsBase10 debugKey
--      array of AttributionReportingAggregatableDedupKey aggregatableDedupKeys
--      array of AttributionReportingEventTriggerData eventTriggerData
--      array of AttributionReportingAggregatableTriggerData aggregatableTriggerData
--      array of AttributionReportingAggregatableValueEntry aggregatableValues
--      integer aggregatableFilteringIdMaxBytes
--      boolean debugReporting
--      optional string aggregationCoordinatorOrigin
--      AttributionReportingSourceRegistrationTimeConfig sourceRegistrationTimeConfig
--      optional string triggerContextId
--      AttributionReportingAggregatableDebugReportingConfig aggregatableDebugReportingConfig
--      array of string scopes
--      array of AttributionReportingNamedBudgetCandidate namedBudgets
--
--  experimental type AttributionReportingEventLevelResult extends string
--    enum
--      success
--      successDroppedLowerPriority
--      internalError
--      noCapacityForAttributionDestination
--      noMatchingSources
--      deduplicated
--      excessiveAttributions
--      priorityTooLow
--      neverAttributedSource
--      excessiveReportingOrigins
--      noMatchingSourceFilterData
--      prohibitedByBrowserPolicy
--      noMatchingConfigurations
--      excessiveReports
--      falselyAttributedSource
--      reportWindowPassed
--      notRegistered
--      reportWindowNotStarted
--      noMatchingTriggerData
--
--  experimental type AttributionReportingAggregatableResult extends string
--    enum
--      success
--      internalError
--      noCapacityForAttributionDestination
--      noMatchingSources
--      excessiveAttributions
--      excessiveReportingOrigins
--      noHistograms
--      insufficientBudget
--      insufficientNamedBudget
--      noMatchingSourceFilterData
--      notRegistered
--      prohibitedByBrowserPolicy
--      deduplicated
--      reportWindowPassed
--      excessiveReports
--
--  experimental event attributionReportingTriggerRegistered
--    parameters
--      AttributionReportingTriggerRegistration registration
--      AttributionReportingEventLevelResult eventLevel
--      AttributionReportingAggregatableResult aggregatable
--
--  experimental type AttributionReportingReportResult extends string
--    enum
--      # A network request was attempted for the report.
--      sent
--      # No request was attempted because of browser policy.
--      prohibited
--      # No request was attempted because of an error in report assembly,
--      # e.g. the aggregation service was unavailable.
--      failedToAssemble
--      # No request was attempted because the report's expiry passed.
--      expired
--
--  experimental event attributionReportingReportSent
--    parameters
--      string url
--      object body
--      AttributionReportingReportResult result
--      # If result is `sent`, populated with net/HTTP status.
--      optional integer netError
--      optional string netErrorName
--      optional integer httpStatusCode
--
--  experimental event attributionReportingVerboseDebugReportSent
--    parameters
--      string url
--      optional array of object body
--      optional integer netError
--      optional string netErrorName
--      optional integer httpStatusCode
--
--  # A single Related Website Set object.
--  experimental type RelatedWebsiteSet extends object
--    properties
--      # The primary site of this set, along with the ccTLDs if there is any.
--      array of string primarySites
--      # The associated sites of this set, along with the ccTLDs if there is any.
--      array of string associatedSites
--      # The service sites of this set, along with the ccTLDs if there is any.
--      array of string serviceSites
--
--  # Returns the effective Related Website Sets in use by this profile for the browser
--  # session. The effective Related Website Sets will not change during a browser session.
--  experimental command getRelatedWebsiteSets
--    returns
--      array of RelatedWebsiteSet sets
--
--  # Returns the list of URLs from a page and its embedded resources that match
--  # existing grace period URL pattern rules.
--  # https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period
--  experimental command getAffectedUrlsForThirdPartyCookieMetadata
--    parameters
--      # The URL of the page currently being visited.
--      string firstPartyUrl
--      # The list of embedded resource URLs from the page.
--      array of string thirdPartyUrls
--
--    returns
--      # Array of matching URLs. If there is a primary pattern match for the first-
--      # party URL, only the first-party URL is returned in the array.
--      array of string matchedUrls
--
--  command setProtectedAudienceKAnonymity
--    parameters
--      string owner
--      string name
--      array of binary hashes
--
--# The SystemInfo domain defines methods and events for querying low-level system information.
--experimental domain SystemInfo
--
--  # Describes a single graphics processor (GPU).
--  type GPUDevice extends object
--    properties
--      # PCI ID of the GPU vendor, if available; 0 otherwise.
--      number vendorId
--      # PCI ID of the GPU device, if available; 0 otherwise.
--      number deviceId
--      # Sub sys ID of the GPU, only available on Windows.
--      optional number subSysId
--      # Revision of the GPU, only available on Windows.
--      optional number revision
--      # String description of the GPU vendor, if the PCI ID is not available.
--      string vendorString
--      # String description of the GPU device, if the PCI ID is not available.
--      string deviceString
--      # String description of the GPU driver vendor.
--      string driverVendor
--      # String description of the GPU driver version.
--      string driverVersion
--
--  # Describes the width and height dimensions of an entity.
--  type Size extends object
--    properties
--      # Width in pixels.
--      integer width
--      # Height in pixels.
--      integer height
--
--  # Describes a supported video decoding profile with its associated minimum and
--  # maximum resolutions.
--  type VideoDecodeAcceleratorCapability extends object
--    properties
--      # Video codec profile that is supported, e.g. VP9 Profile 2.
--      string profile
--      # Maximum video dimensions in pixels supported for this |profile|.
--      Size maxResolution
--      # Minimum video dimensions in pixels supported for this |profile|.
--      Size minResolution
--
--  # Describes a supported video encoding profile with its associated maximum
--  # resolution and maximum framerate.
--  type VideoEncodeAcceleratorCapability extends object
--    properties
--      # Video codec profile that is supported, e.g H264 Main.
--      string profile
--      # Maximum video dimensions in pixels supported for this |profile|.
--      Size maxResolution
--      # Maximum encoding framerate in frames per second supported for this
--      # |profile|, as fraction's numerator and denominator, e.g. 24/1 fps,
--      # 24000/1001 fps, etc.
--      integer maxFramerateNumerator
--      integer maxFramerateDenominator
--
--  # YUV subsampling type of the pixels of a given image.
--  type SubsamplingFormat extends string
--    enum
--      yuv420
--      yuv422
--      yuv444
--
--  # Image format of a given image.
--  type ImageType extends string
--    enum
--      jpeg
--      webp
--      unknown
--
--  # Describes a supported image decoding profile with its associated minimum and
--  # maximum resolutions and subsampling.
--  type ImageDecodeAcceleratorCapability extends object
--    properties
--      # Image coded, e.g. Jpeg.
--      ImageType imageType
--      # Maximum supported dimensions of the image in pixels.
--      Size maxDimensions
--      # Minimum supported dimensions of the image in pixels.
--      Size minDimensions
--      # Optional array of supported subsampling formats, e.g. 4:2:0, if known.
--      array of SubsamplingFormat subsamplings
--
--  # Provides information about the GPU(s) on the system.
--  type GPUInfo extends object
--    properties
--      # The graphics devices on the system. Element 0 is the primary GPU.
--      array of GPUDevice devices
--      # An optional dictionary of additional GPU related attributes.
--      optional object auxAttributes
--      # An optional dictionary of graphics features and their status.
--      optional object featureStatus
--      # An optional array of GPU driver bug workarounds.
--      array of string driverBugWorkarounds
--      # Supported accelerated video decoding capabilities.
--      array of VideoDecodeAcceleratorCapability videoDecoding
--      # Supported accelerated video encoding capabilities.
--      array of VideoEncodeAcceleratorCapability videoEncoding
--      # Supported accelerated image decoding capabilities.
--      array of ImageDecodeAcceleratorCapability imageDecoding
--
--  # Represents process info.
--  type ProcessInfo extends object
--    properties
--      # Specifies process type.
--      string type
--      # Specifies process id.
--      integer id
--      # Specifies cumulative CPU usage in seconds across all threads of the
--      # process since the process start.
--      number cpuTime
--
--  # Returns information about the system.
--  command getInfo
--    returns
--      # Information about the GPUs on the system.
--      GPUInfo gpu
--      # A platform-dependent description of the model of the machine. On Mac OS, this is, for
--      # example, 'MacBookPro'. Will be the empty string if not supported.
--      string modelName
--      # A platform-dependent description of the version of the machine. On Mac OS, this is, for
--      # example, '10.1'. Will be the empty string if not supported.
--      string modelVersion
--      # The command line string used to launch the browser. Will be the empty string if not
--      # supported.
--      string commandLine
--
--  # Returns information about the feature state.
--  command getFeatureState
--    parameters
--      string featureState
--    returns
--      boolean featureEnabled
--
--  # Returns information about all running processes.
--  command getProcessInfo
--    returns
--      # An array of process info blocks.
--      array of ProcessInfo processInfo
--
--# Supports additional targets discovery and allows to attach to them.
--domain Target
--
--  type TargetID extends string
--
--  # Unique identifier of attached debugging session.
--  type SessionID extends string
--
--  type TargetInfo extends object
--    properties
--      TargetID targetId
--      # List of types: https://source.chromium.org/chromium/chromium/src/+/main:content/browser/devtools/devtools_agent_host_impl.cc?ss=chromium&q=f:devtools%20-f:out%20%22::kTypeTab%5B%5D%22
--      string type
--      string title
--      string url
--      # Whether the target has an attached client.
--      boolean attached
--      # Opener target Id
--      optional TargetID openerId
--      # Whether the target has access to the originating window.
--      experimental boolean canAccessOpener
--      # Frame id of originating window (is only set if target has an opener).
--      experimental optional Page.FrameId openerFrameId
--      experimental optional Browser.BrowserContextID browserContextId
--      # Provides additional details for specific target types. For example, for
--      # the type of "page", this may be set to "prerender".
--      experimental optional string subtype
--
--  # A filter used by target query/discovery/auto-attach operations.
--  experimental type FilterEntry extends object
--    properties
--      # If set, causes exclusion of matching targets from the list.
--      optional boolean exclude
--      # If not present, matches any type.
--      optional string type
--
--  # The entries in TargetFilter are matched sequentially against targets and
--  # the first entry that matches determines if the target is included or not,
--  # depending on the value of `exclude` field in the entry.
--  # If filter is not specified, the one assumed is
--  # [{type: "browser", exclude: true}, {type: "tab", exclude: true}, {}]
--  # (i.e. include everything but `browser` and `tab`).
--  experimental type TargetFilter extends array of FilterEntry
--
--  experimental type RemoteLocation extends object
--    properties
--      string host
--      integer port
--
--  # The state of the target window.
--  experimental type WindowState extends string
--    enum
--      normal
--      minimized
--      maximized
--      fullscreen
--
--  # Activates (focuses) the target.
--  command activateTarget
--    parameters
--      TargetID targetId
--
--  # Attaches to the target with given id.
--  command attachToTarget
--    parameters
--      TargetID targetId
--      # Enables "flat" access to the session via specifying sessionId attribute in the commands.
--      # We plan to make this the default, deprecate non-flattened mode,
--      # and eventually retire it. See crbug.com/991325.
--      optional boolean flatten
--    returns
--      # Id assigned to the session.
--      SessionID sessionId
--
--  # Attaches to the browser target, only uses flat sessionId mode.
--  experimental command attachToBrowserTarget
--    returns
--      # Id assigned to the session.
--      SessionID sessionId
--
--  # Closes the target. If the target is a page that gets closed too.
--  command closeTarget
--    parameters
--      TargetID targetId
--    returns
--      # Always set to true. If an error occurs, the response indicates protocol error.
--      deprecated boolean success
--
--  # Inject object to the target's main frame that provides a communication
--  # channel with browser target.
--  #
--  # Injected object will be available as `window[bindingName]`.
--  #
--  # The object has the following API:
--  # - `binding.send(json)` - a method to send messages over the remote debugging protocol
--  # - `binding.onmessage = json => handleMessage(json)` - a callback that will be called for the protocol notifications and command responses.
--  experimental command exposeDevToolsProtocol
--    parameters
--      TargetID targetId
--      # Binding name, 'cdp' if not specified.
--      optional string bindingName
--      # If true, inherits the current root session's permissions (default: false).
--      optional boolean inheritPermissions
--
--  # Creates a new empty BrowserContext. Similar to an incognito profile but you can have more than
--  # one.
--  command createBrowserContext
--    parameters
--      # If specified, disposes this context when debugging session disconnects.
--      experimental optional boolean disposeOnDetach
--      # Proxy server, similar to the one passed to --proxy-server
--      experimental optional string proxyServer
--      # Proxy bypass list, similar to the one passed to --proxy-bypass-list
--      experimental optional string proxyBypassList
--      # An optional list of origins to grant unlimited cross-origin access to.
--      # Parts of the URL other than those constituting origin are ignored.
--      experimental optional array of string originsWithUniversalNetworkAccess
--    returns
--      # The id of the context created.
--      Browser.BrowserContextID browserContextId
--
--  # Returns all browser contexts created with `Target.createBrowserContext` method.
--  command getBrowserContexts
--    returns
--      # An array of browser context ids.
--      array of Browser.BrowserContextID browserContextIds
--
--  # Creates a new page.
--  command createTarget
--    parameters
--      # The initial URL the page will be navigated to. An empty string indicates about:blank.
--      string url
--      # Frame left origin in DIP (requires newWindow to be true or headless shell).
--      experimental optional integer left
--      # Frame top origin in DIP (requires newWindow to be true or headless shell).
--      experimental optional integer top
--      # Frame width in DIP (requires newWindow to be true or headless shell).
--      optional integer width
--      # Frame height in DIP (requires newWindow to be true or headless shell).
--      optional integer height
--      # Frame window state (requires newWindow to be true or headless shell).
--      # Default is normal.
--      optional WindowState windowState
--      # The browser context to create the page in.
--      experimental optional Browser.BrowserContextID browserContextId
--      # Whether BeginFrames for this target will be controlled via DevTools (headless shell only,
--      # not supported on MacOS yet, false by default).
--      experimental optional boolean enableBeginFrameControl
--      # Whether to create a new Window or Tab (false by default, not supported by headless shell).
--      optional boolean newWindow
--      # Whether to create the target in background or foreground (false by default, not supported
--      # by headless shell).
--      optional boolean background
--      # Whether to create the target of type "tab".
--      experimental optional boolean forTab
--      # Whether to create a hidden target. The hidden target is observable via protocol, but not
--      # present in the tab UI strip. Cannot be created with `forTab: true`, `newWindow: true` or
--      # `background: false`. The life-time of the tab is limited to the life-time of the session.
--      experimental optional boolean hidden
--    returns
--      # The id of the page opened.
--      TargetID targetId
--
--  # Detaches session with given id.
--  command detachFromTarget
--    parameters
--      # Session to detach.
--      optional SessionID sessionId
--      # Deprecated.
--      deprecated optional TargetID targetId
--
--  # Deletes a BrowserContext. All the belonging pages will be closed without calling their
--  # beforeunload hooks.
--  command disposeBrowserContext
--    parameters
--      Browser.BrowserContextID browserContextId
--
--  # Returns information about a target.
--  experimental command getTargetInfo
--    parameters
--      optional TargetID targetId
--    returns
--      TargetInfo targetInfo
--
--  # Retrieves a list of available targets.
--  command getTargets
--    parameters
--      # Only targets matching filter will be reported. If filter is not specified
--      # and target discovery is currently enabled, a filter used for target discovery
--      # is used for consistency.
--      experimental optional TargetFilter filter
--    returns
--      # The list of targets.
--      array of TargetInfo targetInfos
--
--  # Sends protocol message over session with given id.
--  # Consider using flat mode instead; see commands attachToTarget, setAutoAttach,
--  # and crbug.com/991325.
--  deprecated command sendMessageToTarget
--    parameters
--      string message
--      # Identifier of the session.
--      optional SessionID sessionId
--      # Deprecated.
--      deprecated optional TargetID targetId
--
--  # Controls whether to automatically attach to new targets which are considered
--  # to be directly related to this one (for example, iframes or workers).
--  # When turned on, attaches to all existing related targets as well. When turned off,
--  # automatically detaches from all currently attached targets.
--  # This also clears all targets added by `autoAttachRelated` from the list of targets to watch
--  # for creation of related targets.
--  # You might want to call this recursively for auto-attached targets to attach
--  # to all available targets.
--  command setAutoAttach
--    parameters
--      # Whether to auto-attach to related targets.
--      boolean autoAttach
--      # Whether to pause new targets when attaching to them. Use `Runtime.runIfWaitingForDebugger`
--      # to run paused targets.
--      boolean waitForDebuggerOnStart
--      # Enables "flat" access to the session via specifying sessionId attribute in the commands.
--      # We plan to make this the default, deprecate non-flattened mode,
--      # and eventually retire it. See crbug.com/991325.
--      experimental optional boolean flatten
--      # Only targets matching filter will be attached.
--      experimental optional TargetFilter filter
--
--  # Adds the specified target to the list of targets that will be monitored for any related target
--  # creation (such as child frames, child workers and new versions of service worker) and reported
--  # through `attachedToTarget`. The specified target is also auto-attached.
--  # This cancels the effect of any previous `setAutoAttach` and is also cancelled by subsequent
--  # `setAutoAttach`. Only available at the Browser target.
--  experimental command autoAttachRelated
--    parameters
--      TargetID targetId
--      # Whether to pause new targets when attaching to them. Use `Runtime.runIfWaitingForDebugger`
--      # to run paused targets.
--      boolean waitForDebuggerOnStart
--      # Only targets matching filter will be attached.
--      experimental optional TargetFilter filter
--
--  # Controls whether to discover available targets and notify via
--  # `targetCreated/targetInfoChanged/targetDestroyed` events.
--  command setDiscoverTargets
--    parameters
--      # Whether to discover available targets.
--      boolean discover
--      # Only targets matching filter will be attached. If `discover` is false,
--      # `filter` must be omitted or empty.
--      experimental optional TargetFilter filter
--
--  # Enables target discovery for the specified locations, when `setDiscoverTargets` was set to
--  # `true`.
--  experimental command setRemoteLocations
--    parameters
--      # List of remote locations.
--      array of RemoteLocation locations
--
--  # Issued when attached to target because of auto-attach or `attachToTarget` command.
--  experimental event attachedToTarget
--    parameters
--      # Identifier assigned to the session used to send/receive messages.
--      SessionID sessionId
--      TargetInfo targetInfo
--      boolean waitingForDebugger
--
--  # Issued when detached from target for any reason (including `detachFromTarget` command). Can be
--  # issued multiple times per target if multiple sessions have been attached to it.
--  experimental event detachedFromTarget
--    parameters
--      # Detached session identifier.
--      SessionID sessionId
--      # Deprecated.
--      deprecated optional TargetID targetId
--
--  # Notifies about a new protocol message received from the session (as reported in
--  # `attachedToTarget` event).
--  event receivedMessageFromTarget
--    parameters
--      # Identifier of a session which sends a message.
--      SessionID sessionId
--      string message
--      # Deprecated.
--      deprecated optional TargetID targetId
--
--  # Issued when a possible inspection target is created.
--  event targetCreated
--    parameters
--      TargetInfo targetInfo
--
--  # Issued when a target is destroyed.
--  event targetDestroyed
--    parameters
--      TargetID targetId
--
--  # Issued when a target has crashed.
--  event targetCrashed
--    parameters
--      TargetID targetId
--      # Termination status type.
--      string status
--      # Termination error code.
--      integer errorCode
--
--  # Issued when some information about a target has changed. This only happens between
--  # `targetCreated` and `targetDestroyed`.
--  event targetInfoChanged
--    parameters
--      TargetInfo targetInfo
--
--  # Opens a DevTools window for the target.
--  experimental command openDevTools
--    parameters
--      # This can be the page or tab target ID.
--      TargetID targetId
--    returns
--      # The targetId of DevTools page target.
--      TargetID targetId
--
--# The Tethering domain defines methods and events for browser port binding.
--experimental domain Tethering
--
--  # Request browser port binding.
--  command bind
--    parameters
--      # Port number to bind.
--      integer port
--
--  # Request browser port unbinding.
--  command unbind
--    parameters
--      # Port number to unbind.
--      integer port
--
--  # Informs that port was successfully bound and got a specified connection id.
--  event accepted
--    parameters
--      # Port number that was successfully bound.
--      integer port
--      # Connection id to be used.
--      string connectionId
--
--domain Tracing
--  depends on IO
--
--  # Configuration for memory dump. Used only when "memory-infra" category is enabled.
--  experimental type MemoryDumpConfig extends object
--
--  type TraceConfig extends object
--    properties
--      # Controls how the trace buffer stores data. The default is `recordUntilFull`.
--      experimental optional enum recordMode
--        recordUntilFull
--        recordContinuously
--        recordAsMuchAsPossible
--        echoToConsole
--      # Size of the trace buffer in kilobytes. If not specified or zero is passed, a default value
--      # of 200 MB would be used.
--      experimental optional number traceBufferSizeInKb
--      # Turns on JavaScript stack sampling.
--      experimental optional boolean enableSampling
--      # Turns on system tracing.
--      experimental optional boolean enableSystrace
--      # Turns on argument filter.
--      experimental optional boolean enableArgumentFilter
--      # Included category filters.
--      optional array of string includedCategories
--      # Excluded category filters.
--      optional array of string excludedCategories
--      # Configuration to synthesize the delays in tracing.
--      experimental optional array of string syntheticDelays
--      # Configuration for memory dump triggers. Used only when "memory-infra" category is enabled.
--      experimental optional MemoryDumpConfig memoryDumpConfig
--
--  # Data format of a trace. Can be either the legacy JSON format or the
--  # protocol buffer format. Note that the JSON format will be deprecated soon.
--  experimental type StreamFormat extends string
--    enum
--      json
--      proto
--
--  # Compression type to use for traces returned via streams.
--  experimental type StreamCompression extends string
--    enum
--      none
--      gzip
--
--  # Details exposed when memory request explicitly declared.
--  # Keep consistent with memory_dump_request_args.h and
--  # memory_instrumentation.mojom
--  experimental type MemoryDumpLevelOfDetail extends string
--    enum
--      background
--      light
--      detailed
--
--  # Backend type to use for tracing. `chrome` uses the Chrome-integrated
--  # tracing service and is supported on all platforms. `system` is only
--  # supported on Chrome OS and uses the Perfetto system tracing service.
--  # `auto` chooses `system` when the perfettoConfig provided to Tracing.start
--  # specifies at least one non-Chrome data source; otherwise uses `chrome`.
--  experimental type TracingBackend extends string
--    enum
--      auto
--      chrome
--      system
--
--  # Stop trace events collection.
--  command end
--
--  # Gets supported tracing categories.
--  experimental command getCategories
--    returns
--      # A list of supported tracing categories.
--      array of string categories
--
--  # Record a clock sync marker in the trace.
--  experimental command recordClockSyncMarker
--    parameters
--      # The ID of this clock sync marker
--      string syncId
--
--  # Request a global memory dump.
--  experimental command requestMemoryDump
--    parameters
--      # Enables more deterministic results by forcing garbage collection
--      optional boolean deterministic
--      # Specifies level of details in memory dump. Defaults to "detailed".
--      optional MemoryDumpLevelOfDetail levelOfDetail
--    returns
--      # GUID of the resulting global memory dump.
--      string dumpGuid
--      # True iff the global memory dump succeeded.
--      boolean success
--
--  # Start trace events collection.
--  command start
--    parameters
--      # Category/tag filter
--      experimental deprecated optional string categories
--      # Tracing options
--      experimental deprecated optional string options
--      # If set, the agent will issue bufferUsage events at this interval, specified in milliseconds
--      experimental optional number bufferUsageReportingInterval
--      # Whether to report trace events as series of dataCollected events or to save trace to a
--      # stream (defaults to `ReportEvents`).
--      optional enum transferMode
--        ReportEvents
--        ReturnAsStream
--      # Trace data format to use. This only applies when using `ReturnAsStream`
--      # transfer mode (defaults to `json`).
--      optional StreamFormat streamFormat
--      # Compression format to use. This only applies when using `ReturnAsStream`
--      # transfer mode (defaults to `none`)
--      experimental optional StreamCompression streamCompression
--      optional TraceConfig traceConfig
--      # Base64-encoded serialized perfetto.protos.TraceConfig protobuf message
--      # When specified, the parameters `categories`, `options`, `traceConfig`
--      # are ignored.
--      experimental optional binary perfettoConfig
--      # Backend type (defaults to `auto`)
--      experimental optional TracingBackend tracingBackend
--
--  experimental event bufferUsage
--    parameters
--      # A number in range [0..1] that indicates the used size of event buffer as a fraction of its
--      # total size.
--      optional number percentFull
--      # An approximate number of events in the trace log.
--      optional number eventCount
--      # A number in range [0..1] that indicates the used size of event buffer as a fraction of its
--      # total size.
--      optional number value
--
--  # Contains a bucket of collected trace events. When tracing is stopped collected events will be
--  # sent as a sequence of dataCollected events followed by tracingComplete event.
--  experimental event dataCollected
--    parameters
--      array of object value
--
--  # Signals that tracing is stopped and there is no trace buffers pending flush, all data were
--  # delivered via dataCollected events.
--  event tracingComplete
--    parameters
--      # Indicates whether some trace data is known to have been lost, e.g. because the trace ring
--      # buffer wrapped around.
--      boolean dataLossOccurred
--      # A handle of the stream that holds resulting trace data.
--      optional IO.StreamHandle stream
--      # Trace data format of returned stream.
--      optional StreamFormat traceFormat
--      # Compression format of returned stream.
--      optional StreamCompression streamCompression
--
--# A domain for letting clients substitute browser's network layer with client code.
--domain Fetch
--  depends on Network
--  depends on IO
--  depends on Page
--
--  # Unique request identifier.
--  # Note that this does not identify individual HTTP requests that are part of
--  # a network request.
--  type RequestId extends string
--
--  # Stages of the request to handle. Request will intercept before the request is
--  # sent. Response will intercept after the response is received (but before response
--  # body is received).
--  type RequestStage extends string
--    enum
--      Request
--      Response
--
--  type RequestPattern extends object
--    properties
--      # Wildcards (`'*'` -> zero or more, `'?'` -> exactly one) are allowed. Escape character is
--      # backslash. Omitting is equivalent to `"*"`.
--      optional string urlPattern
--      # If set, only requests for matching resource types will be intercepted.
--      optional Network.ResourceType resourceType
--      # Stage at which to begin intercepting requests. Default is Request.
--      optional RequestStage requestStage
--
--  # Response HTTP header entry
--  type HeaderEntry extends object
--    properties
--      string name
--      string value
--
--  # Authorization challenge for HTTP status code 401 or 407.
--  type AuthChallenge extends object
--    properties
--      # Source of the authentication challenge.
--      optional enum source
--        Server
--        Proxy
--      # Origin of the challenger.
--      string origin
--      # The authentication scheme used, such as basic or digest
--      string scheme
--      # The realm of the challenge. May be empty.
--      string realm
--
--  # Response to an AuthChallenge.
--  type AuthChallengeResponse extends object
--    properties
--      # The decision on what to do in response to the authorization challenge.  Default means
--      # deferring to the default behavior of the net stack, which will likely either the Cancel
--      # authentication or display a popup dialog box.
--      enum response
--        Default
--        CancelAuth
--        ProvideCredentials
--      # The username to provide, possibly empty. Should only be set if response is
--      # ProvideCredentials.
--      optional string username
--      # The password to provide, possibly empty. Should only be set if response is
--      # ProvideCredentials.
--      optional string password
--
--  # Disables the fetch domain.
--  command disable
--
--  # Enables issuing of requestPaused events. A request will be paused until client
--  # calls one of failRequest, fulfillRequest or continueRequest/continueWithAuth.
--  command enable
--    parameters
--      # If specified, only requests matching any of these patterns will produce
--      # fetchRequested event and will be paused until clients response. If not set,
--      # all requests will be affected.
--      optional array of RequestPattern patterns
--      # If true, authRequired events will be issued and requests will be paused
--      # expecting a call to continueWithAuth.
--      optional boolean handleAuthRequests
--
--  # Causes the request to fail with specified reason.
--  command failRequest
--    parameters
--      # An id the client received in requestPaused event.
--      RequestId requestId
--      # Causes the request to fail with the given reason.
--      Network.ErrorReason errorReason
--
--  # Provides response to the request.
--  command fulfillRequest
--    parameters
--      # An id the client received in requestPaused event.
--      RequestId requestId
--      # An HTTP response code.
--      integer responseCode
--      # Response headers.
--      optional array of HeaderEntry responseHeaders
--      # Alternative way of specifying response headers as a \0-separated
--      # series of name: value pairs. Prefer the above method unless you
--      # need to represent some non-UTF8 values that can't be transmitted
--      # over the protocol as text.
--      optional binary binaryResponseHeaders
--      # A response body. If absent, original response body will be used if
--      # the request is intercepted at the response stage and empty body
--      # will be used if the request is intercepted at the request stage.
--      optional binary body
--      # A textual representation of responseCode.
--      # If absent, a standard phrase matching responseCode is used.
--      optional string responsePhrase
--
--  # Continues the request, optionally modifying some of its parameters.
--  command continueRequest
--    parameters
--      # An id the client received in requestPaused event.
--      RequestId requestId
--      # If set, the request url will be modified in a way that's not observable by page.
--      optional string url
--      # If set, the request method is overridden.
--      optional string method
--      # If set, overrides the post data in the request.
--      optional binary postData
--      # If set, overrides the request headers. Note that the overrides do not
--      # extend to subsequent redirect hops, if a redirect happens. Another override
--      # may be applied to a different request produced by a redirect.
--      optional array of HeaderEntry headers
--      # If set, overrides response interception behavior for this request.
--      experimental optional boolean interceptResponse
--
--  # Continues a request supplying authChallengeResponse following authRequired event.
--  command continueWithAuth
--    parameters
--      # An id the client received in authRequired event.
--      RequestId requestId
--      # Response to  with an authChallenge.
--      AuthChallengeResponse authChallengeResponse
--
--  # Continues loading of the paused response, optionally modifying the
--  # response headers. If either responseCode or headers are modified, all of them
--  # must be present.
--  experimental command continueResponse
--    parameters
--      # An id the client received in requestPaused event.
--      RequestId requestId
--      # An HTTP response code. If absent, original response code will be used.
--      optional integer responseCode
--      # A textual representation of responseCode.
--      # If absent, a standard phrase matching responseCode is used.
--      optional string responsePhrase
--      # Response headers. If absent, original response headers will be used.
--      optional array of HeaderEntry responseHeaders
--      # Alternative way of specifying response headers as a \0-separated
--      # series of name: value pairs. Prefer the above method unless you
--      # need to represent some non-UTF8 values that can't be transmitted
--      # over the protocol as text.
--      optional binary binaryResponseHeaders
--
--  # Causes the body of the response to be received from the server and
--  # returned as a single string. May only be issued for a request that
--  # is paused in the Response stage and is mutually exclusive with
--  # takeResponseBodyForInterceptionAsStream. Calling other methods that
--  # affect the request or disabling fetch domain before body is received
--  # results in an undefined behavior.
--  # Note that the response body is not available for redirects. Requests
--  # paused in the _redirect received_ state may be differentiated by
--  # `responseCode` and presence of `location` response header, see
--  # comments to `requestPaused` for details.
--  command getResponseBody
--    parameters
--      # Identifier for the intercepted request to get body for.
--      RequestId requestId
--    returns
--      # Response body.
--      string body
--      # True, if content was sent as base64.
--      boolean base64Encoded
--
--  # Returns a handle to the stream representing the response body.
--  # The request must be paused in the HeadersReceived stage.
--  # Note that after this command the request can't be continued
--  # as is -- client either needs to cancel it or to provide the
--  # response body.
--  # The stream only supports sequential read, IO.read will fail if the position
--  # is specified.
--  # This method is mutually exclusive with getResponseBody.
--  # Calling other methods that affect the request or disabling fetch
--  # domain before body is received results in an undefined behavior.
--  command takeResponseBodyAsStream
--    parameters
--      RequestId requestId
--    returns
--      IO.StreamHandle stream
--
--  # Issued when the domain is enabled and the request URL matches the
--  # specified filter. The request is paused until the client responds
--  # with one of continueRequest, failRequest or fulfillRequest.
--  # The stage of the request can be determined by presence of responseErrorReason
--  # and responseStatusCode -- the request is at the response stage if either
--  # of these fields is present and in the request stage otherwise.
--  # Redirect responses and subsequent requests are reported similarly to regular
--  # responses and requests. Redirect responses may be distinguished by the value
--  # of `responseStatusCode` (which is one of 301, 302, 303, 307, 308) along with
--  # presence of the `location` header. Requests resulting from a redirect will
--  # have `redirectedRequestId` field set.
--  event requestPaused
--    parameters
--      # Each request the page makes will have a unique id.
--      RequestId requestId
--      # The details of the request.
--      Network.Request request
--      # The id of the frame that initiated the request.
--      Page.FrameId frameId
--      # How the requested resource will be used.
--      Network.ResourceType resourceType
--      # Response error if intercepted at response stage.
--      optional Network.ErrorReason responseErrorReason
--      # Response code if intercepted at response stage.
--      optional integer responseStatusCode
--      # Response status text if intercepted at response stage.
--      optional string responseStatusText
--      # Response headers if intercepted at the response stage.
--      optional array of HeaderEntry responseHeaders
--      # If the intercepted request had a corresponding Network.requestWillBeSent event fired for it,
--      # then this networkId will be the same as the requestId present in the requestWillBeSent event.
--      optional Network.RequestId networkId
--      # If the request is due to a redirect response from the server, the id of the request that
--      # has caused the redirect.
--      experimental optional RequestId redirectedRequestId
--
--  # Issued when the domain is enabled with handleAuthRequests set to true.
--  # The request is paused until client responds with continueWithAuth.
--  event authRequired
--    parameters
--      # Each request the page makes will have a unique id.
--      RequestId requestId
--      # The details of the request.
--      Network.Request request
--      # The id of the frame that initiated the request.
--      Page.FrameId frameId
--      # How the requested resource will be used.
--      Network.ResourceType resourceType
--      # Details of the Authorization Challenge encountered.
--      # If this is set, client should respond with continueRequest that
--      # contains AuthChallengeResponse.
--      AuthChallenge authChallenge
--
--# This domain allows inspection of Web Audio API.
--# https://webaudio.github.io/web-audio-api/
--experimental domain WebAudio
--
--  # An unique ID for a graph object (AudioContext, AudioNode, AudioParam) in Web Audio API
--  type GraphObjectId extends string
--
--  # Enum of BaseAudioContext types
--  type ContextType extends string
--    enum
--      realtime
--      offline
--
--  # Enum of AudioContextState from the spec
--  type ContextState extends string
--    enum
--      suspended
--      running
--      closed
--      interrupted
--
--  # Enum of AudioNode types
--  type NodeType extends string
--
--  # Enum of AudioNode::ChannelCountMode from the spec
--  type ChannelCountMode extends string
--    enum
--      clamped-max
--      explicit
--      max
--
--  # Enum of AudioNode::ChannelInterpretation from the spec
--  type ChannelInterpretation extends string
--    enum
--      discrete
--      speakers
--
--  # Enum of AudioParam types
--  type ParamType extends string
--
--  # Enum of AudioParam::AutomationRate from the spec
--  type AutomationRate extends string
--    enum
--      a-rate
--      k-rate
--
--  # Fields in AudioContext that change in real-time.
--  type ContextRealtimeData extends object
--    properties
--      # The current context time in second in BaseAudioContext.
--      number currentTime
--      # The time spent on rendering graph divided by render quantum duration,
--      # and multiplied by 100. 100 means the audio renderer reached the full
--      # capacity and glitch may occur.
--      number renderCapacity
--      # A running mean of callback interval.
--      number callbackIntervalMean
--      # A running variance of callback interval.
--      number callbackIntervalVariance
--
--  # Protocol object for BaseAudioContext
--  type BaseAudioContext extends object
--    properties
--      GraphObjectId contextId
--      ContextType contextType
--      ContextState contextState
--      optional ContextRealtimeData realtimeData
--      # Platform-dependent callback buffer size.
--      number callbackBufferSize
--      # Number of output channels supported by audio hardware in use.
--      number maxOutputChannelCount
--      # Context sample rate.
--      number sampleRate
--
--# Protocol object for AudioListener
--  type AudioListener extends object
--    properties
--      GraphObjectId listenerId
--      GraphObjectId contextId
--
--  # Protocol object for AudioNode
--  type AudioNode extends object
--    properties
--      GraphObjectId nodeId
--      GraphObjectId contextId
--      NodeType nodeType
--      number numberOfInputs
--      number numberOfOutputs
--      number channelCount
--      ChannelCountMode channelCountMode
--      ChannelInterpretation channelInterpretation
--
--  # Protocol object for AudioParam
--  type AudioParam extends object
--    properties
--      GraphObjectId paramId
--      GraphObjectId nodeId
--      GraphObjectId contextId
--      ParamType paramType
--      AutomationRate rate
--      number defaultValue
--      number minValue
--      number maxValue
--
--  # Enables the WebAudio domain and starts sending context lifetime events.
--  command enable
--
--  # Disables the WebAudio domain.
--  command disable
--
--  # Fetch the realtime data from the registered contexts.
--  command getRealtimeData
--    parameters
--      GraphObjectId contextId
--    returns
--      ContextRealtimeData realtimeData
--
--  # Notifies that a new BaseAudioContext has been created.
--  event contextCreated
--    parameters
--      BaseAudioContext context
--
--  # Notifies that an existing BaseAudioContext will be destroyed.
--  event contextWillBeDestroyed
--    parameters
--      GraphObjectId contextId
--
--  # Notifies that existing BaseAudioContext has changed some properties (id stays the same)..
--  event contextChanged
--    parameters
--      BaseAudioContext context
--
--# Notifies that the construction of an AudioListener has finished.
--  event audioListenerCreated
--    parameters
--      AudioListener listener
--
--  # Notifies that a new AudioListener has been created.
--  event audioListenerWillBeDestroyed
--    parameters
--      GraphObjectId contextId
--      GraphObjectId listenerId
--
--  # Notifies that a new AudioNode has been created.
--  event audioNodeCreated
--    parameters
--      AudioNode node
--
--  # Notifies that an existing AudioNode has been destroyed.
--  event audioNodeWillBeDestroyed
--    parameters
--      GraphObjectId contextId
--      GraphObjectId nodeId
--
--  # Notifies that a new AudioParam has been created.
--  event audioParamCreated
--    parameters
--      AudioParam param
--
--  # Notifies that an existing AudioParam has been destroyed.
--  event audioParamWillBeDestroyed
--    parameters
--      GraphObjectId contextId
--      GraphObjectId nodeId
--      GraphObjectId paramId
--
--  # Notifies that two AudioNodes are connected.
--  event nodesConnected
--    parameters
--      GraphObjectId contextId
--      GraphObjectId sourceId
--      GraphObjectId destinationId
--      optional number sourceOutputIndex
--      optional number destinationInputIndex
--
--  # Notifies that AudioNodes are disconnected. The destination can be null, and it means all the outgoing connections from the source are disconnected.
--  event nodesDisconnected
--    parameters
--      GraphObjectId contextId
--      GraphObjectId sourceId
--      GraphObjectId destinationId
--      optional number sourceOutputIndex
--      optional number destinationInputIndex
--
--  # Notifies that an AudioNode is connected to an AudioParam.
--  event nodeParamConnected
--    parameters
--      GraphObjectId contextId
--      GraphObjectId sourceId
--      GraphObjectId destinationId
--      optional number sourceOutputIndex
--
--  # Notifies that an AudioNode is disconnected to an AudioParam.
--  event nodeParamDisconnected
--    parameters
--      GraphObjectId contextId
--      GraphObjectId sourceId
--      GraphObjectId destinationId
--      optional number sourceOutputIndex
--
--# This domain allows configuring virtual authenticators to test the WebAuthn
--# API.
--experimental domain WebAuthn
--  type AuthenticatorId extends string
--
--  type AuthenticatorProtocol extends string
--    enum
--      # Universal 2nd Factor.
--      u2f
--      # Client To Authenticator Protocol 2.
--      ctap2
--
--  type Ctap2Version extends string
--    enum
--      ctap2_0
--      ctap2_1
--
--  type AuthenticatorTransport extends string
--    enum
--      # Cross-Platform authenticator attachments:
--      usb
--      nfc
--      ble
--      cable
--      # Platform authenticator attachment:
--      internal
--
--  type VirtualAuthenticatorOptions extends object
--    properties
--      AuthenticatorProtocol protocol
--      # Defaults to ctap2_0. Ignored if |protocol| == u2f.
--      optional Ctap2Version ctap2Version
--      AuthenticatorTransport transport
--      # Defaults to false.
--      optional boolean hasResidentKey
--      # Defaults to false.
--      optional boolean hasUserVerification
--      # If set to true, the authenticator will support the largeBlob extension.
--      # https://w3c.github.io/webauthn#largeBlob
--      # Defaults to false.
--      optional boolean hasLargeBlob
--      # If set to true, the authenticator will support the credBlob extension.
--      # https://fidoalliance.org/specs/fido-v2.1-rd-20201208/fido-client-to-authenticator-protocol-v2.1-rd-20201208.html#sctn-credBlob-extension
--      # Defaults to false.
--      optional boolean hasCredBlob
--      # If set to true, the authenticator will support the minPinLength extension.
--      # https://fidoalliance.org/specs/fido-v2.1-ps-20210615/fido-client-to-authenticator-protocol-v2.1-ps-20210615.html#sctn-minpinlength-extension
--      # Defaults to false.
--      optional boolean hasMinPinLength
--      # If set to true, the authenticator will support the prf extension.
--      # https://w3c.github.io/webauthn/#prf-extension
--      # Defaults to false.
--      optional boolean hasPrf
--      # If set to true, tests of user presence will succeed immediately.
--      # Otherwise, they will not be resolved. Defaults to true.
--      optional boolean automaticPresenceSimulation
--      # Sets whether User Verification succeeds or fails for an authenticator.
--      # Defaults to false.
--      optional boolean isUserVerified
--      # Credentials created by this authenticator will have the backup
--      # eligibility (BE) flag set to this value. Defaults to false.
--      # https://w3c.github.io/webauthn/#sctn-credential-backup
--      optional boolean defaultBackupEligibility
--      # Credentials created by this authenticator will have the backup state
--      # (BS) flag set to this value. Defaults to false.
--      # https://w3c.github.io/webauthn/#sctn-credential-backup
--      optional boolean defaultBackupState
--
--  type Credential extends object
--    properties
--      binary credentialId
--      boolean isResidentCredential
--      # Relying Party ID the credential is scoped to. Must be set when adding a
--      # credential.
--      optional string rpId
--      # The ECDSA P-256 private key in PKCS#8 format.
--      binary privateKey
--      # An opaque byte sequence with a maximum size of 64 bytes mapping the
--      # credential to a specific user.
--      optional binary userHandle
--      # Signature counter. This is incremented by one for each successful
--      # assertion.
--      # See https://w3c.github.io/webauthn/#signature-counter
--      integer signCount
--      # The large blob associated with the credential.
--      # See https://w3c.github.io/webauthn/#sctn-large-blob-extension
--      optional binary largeBlob
--      # Assertions returned by this credential will have the backup eligibility
--      # (BE) flag set to this value. Defaults to the authenticator's
--      # defaultBackupEligibility value.
--      optional boolean backupEligibility
--      # Assertions returned by this credential will have the backup state (BS)
--      # flag set to this value. Defaults to the authenticator's
--      # defaultBackupState value.
--      optional boolean backupState
--      # The credential's user.name property. Equivalent to empty if not set.
--      # https://w3c.github.io/webauthn/#dom-publickeycredentialentity-name
--      optional string userName
--      # The credential's user.displayName property. Equivalent to empty if
--      # not set.
--      # https://w3c.github.io/webauthn/#dom-publickeycredentialuserentity-displayname
--      optional string userDisplayName
--
--  # Enable the WebAuthn domain and start intercepting credential storage and
--  # retrieval with a virtual authenticator.
--  command enable
--    parameters
--      # Whether to enable the WebAuthn user interface. Enabling the UI is
--      # recommended for debugging and demo purposes, as it is closer to the real
--      # experience. Disabling the UI is recommended for automated testing.
--      # Supported at the embedder's discretion if UI is available.
--      # Defaults to false.
--      optional boolean enableUI
--
--  # Disable the WebAuthn domain.
--  command disable
--
--  # Creates and adds a virtual authenticator.
--  command addVirtualAuthenticator
--    parameters
--      VirtualAuthenticatorOptions options
--    returns
--      AuthenticatorId authenticatorId
--
--  # Resets parameters isBogusSignature, isBadUV, isBadUP to false if they are not present.
--  command setResponseOverrideBits
--    parameters
--      AuthenticatorId authenticatorId
--      # If isBogusSignature is set, overrides the signature in the authenticator response to be zero.
--      # Defaults to false.
--      optional boolean isBogusSignature
--      # If isBadUV is set, overrides the UV bit in the flags in the authenticator response to
--      # be zero. Defaults to false.
--      optional boolean isBadUV
--      # If isBadUP is set, overrides the UP bit in the flags in the authenticator response to
--      # be zero. Defaults to false.
--      optional boolean isBadUP
--
--  # Removes the given authenticator.
--  command removeVirtualAuthenticator
--    parameters
--      AuthenticatorId authenticatorId
--
--  # Adds the credential to the specified authenticator.
--  command addCredential
--    parameters
--      AuthenticatorId authenticatorId
--      Credential credential
--
--  # Returns a single credential stored in the given virtual authenticator that
--  # matches the credential ID.
--  command getCredential
--    parameters
--      AuthenticatorId authenticatorId
--      binary credentialId
--    returns
--      Credential credential
--
--  # Returns all the credentials stored in the given virtual authenticator.
--  command getCredentials
--    parameters
--      AuthenticatorId authenticatorId
--    returns
--      array of Credential credentials
--
--  # Removes a credential from the authenticator.
--  command removeCredential
--    parameters
--      AuthenticatorId authenticatorId
--      binary credentialId
--
--  # Clears all the credentials from the specified device.
--  command clearCredentials
--    parameters
--      AuthenticatorId authenticatorId
--
--  # Sets whether User Verification succeeds or fails for an authenticator.
--  # The default is true.
--  command setUserVerified
--    parameters
--      AuthenticatorId authenticatorId
--      boolean isUserVerified
--
--  # Sets whether tests of user presence will succeed immediately (if true) or fail to resolve (if false) for an authenticator.
--  # The default is true.
--  command setAutomaticPresenceSimulation
--    parameters
--      AuthenticatorId authenticatorId
--      boolean enabled
--
--  # Allows setting credential properties.
--  # https://w3c.github.io/webauthn/#sctn-automation-set-credential-properties
--  command setCredentialProperties
--    parameters
--      AuthenticatorId authenticatorId
--      binary credentialId
--      optional boolean backupEligibility
--      optional boolean backupState
--
--  # Triggered when a credential is added to an authenticator.
--  event credentialAdded
--    parameters
--      AuthenticatorId authenticatorId
--      Credential credential
--
--  # Triggered when a credential is deleted, e.g. through
--  # PublicKeyCredential.signalUnknownCredential().
--  event credentialDeleted
--    parameters
--      AuthenticatorId authenticatorId
--      binary credentialId
--
--  # Triggered when a credential is updated, e.g. through
--  # PublicKeyCredential.signalCurrentUserDetails().
--  event credentialUpdated
--    parameters
--      AuthenticatorId authenticatorId
--      Credential credential
--
--  # Triggered when a credential is used in a webauthn assertion.
--  event credentialAsserted
--    parameters
--      AuthenticatorId authenticatorId
--      Credential credential
--
--# This domain allows detailed inspection of media elements
--experimental domain Media
--
--  # Players will get an ID that is unique within the agent context.
--  type PlayerId extends string
--
--  type Timestamp extends number
--
--  # Have one type per entry in MediaLogRecord::Type
--  # Corresponds to kMessage
--  type PlayerMessage extends object
--    properties
--      # Keep in sync with MediaLogMessageLevel
--      # We are currently keeping the message level 'error' separate from the
--      # PlayerError type because right now they represent different things,
--      # this one being a DVLOG(ERROR) style log message that gets printed
--      # based on what log level is selected in the UI, and the other is a
--      # representation of a media::PipelineStatus object. Soon however we're
--      # going to be moving away from using PipelineStatus for errors and
--      # introducing a new error type which should hopefully let us integrate
--      # the error log level into the PlayerError type.
--      enum level
--        error
--        warning
--        info
--        debug
--      string message
--
--  # Corresponds to kMediaPropertyChange
--  type PlayerProperty extends object
--    properties
--      string name
--      string value
--
--  # Corresponds to kMediaEventTriggered
--  type PlayerEvent extends object
--    properties
--      Timestamp timestamp
--      string value
--
--  # Represents logged source line numbers reported in an error.
--  # NOTE: file and line are from chromium c++ implementation code, not js.
--  type PlayerErrorSourceLocation extends object
--    properties
--      string file
--      integer line
--
--  # Corresponds to kMediaError
--  type PlayerError extends object
--    properties
--      string errorType
--      # Code is the numeric enum entry for a specific set of error codes, such
--      # as PipelineStatusCodes in media/base/pipeline_status.h
--      integer code
--      # A trace of where this error was caused / where it passed through.
--      array of PlayerErrorSourceLocation stack
--      # Errors potentially have a root cause error, ie, a DecoderError might be
--      # caused by an WindowsError
--      array of PlayerError cause
--      # Extra data attached to an error, such as an HRESULT, Video Codec, etc.
--      object data
--
--  # This can be called multiple times, and can be used to set / override /
--  # remove player properties. A null propValue indicates removal.
--  event playerPropertiesChanged
--    parameters
--      PlayerId playerId
--      array of PlayerProperty properties
--
--  # Send events as a list, allowing them to be batched on the browser for less
--  # congestion. If batched, events must ALWAYS be in chronological order.
--  event playerEventsAdded
--    parameters
--      PlayerId playerId
--      array of PlayerEvent events
--
--  # Send a list of any messages that need to be delivered.
--  event playerMessagesLogged
--    parameters
--      PlayerId playerId
--      array of PlayerMessage messages
--
--  # Send a list of any errors that need to be delivered.
--  event playerErrorsRaised
--    parameters
--      PlayerId playerId
--      array of PlayerError errors
--
--  # Called whenever a player is created, or when a new agent joins and receives
--  # a list of active players. If an agent is restored, it will receive the full
--  # list of player ids and all events again.
--  event playersCreated
--    parameters
--      array of PlayerId players
--
--  # Enables the Media domain
--  command enable
--
--  # Disables the Media domain.
--  command disable
--
--experimental domain DeviceAccess
--  # Device request id.
--  type RequestId extends string
--
--  # A device id.
--  type DeviceId extends string
--
--  # Device information displayed in a user prompt to select a device.
--  type PromptDevice extends object
--    properties
--      DeviceId id
--      # Display name as it appears in a device request user prompt.
--      string name
--
--  # Enable events in this domain.
--  command enable
--
--  # Disable events in this domain.
--  command disable
--
--  # Select a device in response to a DeviceAccess.deviceRequestPrompted event.
--  command selectPrompt
--    parameters
--      RequestId id
--      DeviceId deviceId
--
--  # Cancel a prompt in response to a DeviceAccess.deviceRequestPrompted event.
--  command cancelPrompt
--    parameters
--      RequestId id
--
--  # A device request opened a user prompt to select a device. Respond with the
--  # selectPrompt or cancelPrompt command.
--  event deviceRequestPrompted
--    parameters
--      RequestId id
--      array of PromptDevice devices
--
--experimental domain Preload
--  # Unique id
--  type RuleSetId extends string
--
--  # Corresponds to SpeculationRuleSet
--  type RuleSet extends object
--    properties
--      RuleSetId id
--      # Identifies a document which the rule set is associated with.
--      Network.LoaderId loaderId
--      # Source text of JSON representing the rule set. If it comes from
--      # `<script>` tag, it is the textContent of the node. Note that it is
--      # a JSON for valid case.
--      #
--      # See also:
--      # - https://wicg.github.io/nav-speculation/speculation-rules.html
--      # - https://github.com/WICG/nav-speculation/blob/main/triggers.md
--      string sourceText
--      # A speculation rule set is either added through an inline
--      # `<script>` tag or through an external resource via the
--      # 'Speculation-Rules' HTTP header. For the first case, we include
--      # the BackendNodeId of the relevant `<script>` tag. For the second
--      # case, we include the external URL where the rule set was loaded
--      # from, and also RequestId if Network domain is enabled.
--      #
--      # See also:
--      # - https://wicg.github.io/nav-speculation/speculation-rules.html#speculation-rules-script
--      # - https://wicg.github.io/nav-speculation/speculation-rules.html#speculation-rules-header
--      optional DOM.BackendNodeId backendNodeId
--      optional string url
--      optional Network.RequestId requestId
--      # Error information
--      # `errorMessage` is null iff `errorType` is null.
--      optional RuleSetErrorType errorType
--      # TODO(https://crbug.com/1425354): Replace this property with structured error.
--      deprecated optional string errorMessage
--
--  type RuleSetErrorType extends string
--    enum
--      SourceIsNotJsonObject
--      InvalidRulesSkipped
--      InvalidRulesetLevelTag
--
--  # The type of preloading attempted. It corresponds to
--  # mojom::SpeculationAction (although PrefetchWithSubresources is omitted as it
--  # isn't being used by clients).
--  type SpeculationAction extends string
--    enum
--      Prefetch
--      Prerender
--
--  # Corresponds to mojom::SpeculationTargetHint.
--  # See https://github.com/WICG/nav-speculation/blob/main/triggers.md#window-name-targeting-hints
--  type SpeculationTargetHint extends string
--    enum
--      Blank
--      Self
--
--  # A key that identifies a preloading attempt.
--  #
--  # The url used is the url specified by the trigger (i.e. the initial URL), and
--  # not the final url that is navigated to. For example, prerendering allows
--  # same-origin main frame navigations during the attempt, but the attempt is
--  # still keyed with the initial URL.
--  type PreloadingAttemptKey extends object
--    properties
--      Network.LoaderId loaderId
--      SpeculationAction action
--      string url
--      optional SpeculationTargetHint targetHint
--
--  # Lists sources for a preloading attempt, specifically the ids of rule sets
--  # that had a speculation rule that triggered the attempt, and the
--  # BackendNodeIds of <a href> or <area href> elements that triggered the
--  # attempt (in the case of attempts triggered by a document rule). It is
--  # possible for multiple rule sets and links to trigger a single attempt.
--  type PreloadingAttemptSource extends object
--    properties
--      PreloadingAttemptKey key
--      array of RuleSetId ruleSetIds
--      array of DOM.BackendNodeId nodeIds
--
--  # Chrome manages different types of preloads together using a
--  # concept of preloading pipeline. For example, if a site uses a
--  # SpeculationRules for prerender, Chrome first starts a prefetch and
--  # then upgrades it to prerender.
--  #
--  # CDP events for them are emitted separately but they share
--  # `PreloadPipelineId`.
--  type PreloadPipelineId extends string
--
--  command enable
--
--  command disable
--
--  # Upsert. Currently, it is only emitted when a rule set added.
--  event ruleSetUpdated
--    parameters
--      RuleSet ruleSet
--
--  event ruleSetRemoved
--    parameters
--      RuleSetId id
--
--  # List of FinalStatus reasons for Prerender2.
--  type PrerenderFinalStatus extends string
--    enum
--      Activated
--      Destroyed
--      LowEndDevice
--      InvalidSchemeRedirect
--      InvalidSchemeNavigation
--      NavigationRequestBlockedByCsp
--      MojoBinderPolicy
--      RendererProcessCrashed
--      RendererProcessKilled
--      Download
--      TriggerDestroyed
--      NavigationNotCommitted
--      NavigationBadHttpStatus
--      ClientCertRequested
--      NavigationRequestNetworkError
--      CancelAllHostsForTesting
--      DidFailLoad
--      Stop
--      SslCertificateError
--      LoginAuthRequested
--      UaChangeRequiresReload
--      BlockedByClient
--      AudioOutputDeviceRequested
--      MixedContent
--      TriggerBackgrounded
--      MemoryLimitExceeded
--      DataSaverEnabled
--      TriggerUrlHasEffectiveUrl
--      ActivatedBeforeStarted
--      InactivePageRestriction
--      StartFailed
--      TimeoutBackgrounded
--      CrossSiteRedirectInInitialNavigation
--      CrossSiteNavigationInInitialNavigation
--      SameSiteCrossOriginRedirectNotOptInInInitialNavigation
--      SameSiteCrossOriginNavigationNotOptInInInitialNavigation
--      ActivationNavigationParameterMismatch
--      ActivatedInBackground
--      EmbedderHostDisallowed
--      ActivationNavigationDestroyedBeforeSuccess
--      TabClosedByUserGesture
--      TabClosedWithoutUserGesture
--      PrimaryMainFrameRendererProcessCrashed
--      PrimaryMainFrameRendererProcessKilled
--      ActivationFramePolicyNotCompatible
--      PreloadingDisabled
--      BatterySaverEnabled
--      ActivatedDuringMainFrameNavigation
--      PreloadingUnsupportedByWebContents
--      CrossSiteRedirectInMainFrameNavigation
--      CrossSiteNavigationInMainFrameNavigation
--      SameSiteCrossOriginRedirectNotOptInInMainFrameNavigation
--      SameSiteCrossOriginNavigationNotOptInInMainFrameNavigation
--      MemoryPressureOnTrigger
--      MemoryPressureAfterTriggered
--      PrerenderingDisabledByDevTools
--      SpeculationRuleRemoved
--      ActivatedWithAuxiliaryBrowsingContexts
--      MaxNumOfRunningEagerPrerendersExceeded
--      MaxNumOfRunningNonEagerPrerendersExceeded
--      MaxNumOfRunningEmbedderPrerendersExceeded
--      PrerenderingUrlHasEffectiveUrl
--      RedirectedPrerenderingUrlHasEffectiveUrl
--      ActivationUrlHasEffectiveUrl
--      JavaScriptInterfaceAdded
--      JavaScriptInterfaceRemoved
--      AllPrerenderingCanceled
--      WindowClosed
--      SlowNetwork
--      OtherPrerenderedPageActivated
--      V8OptimizerDisabled
--      PrerenderFailedDuringPrefetch
--      BrowsingDataRemoved
--      PrerenderHostReused
--
--  # Fired when a preload enabled state is updated.
--  event preloadEnabledStateUpdated
--    parameters
--      boolean disabledByPreference
--      boolean disabledByDataSaver
--      boolean disabledByBatterySaver
--      boolean disabledByHoldbackPrefetchSpeculationRules
--      boolean disabledByHoldbackPrerenderSpeculationRules
--
--  # Preloading status values, see also PreloadingTriggeringOutcome. This
--  # status is shared by prefetchStatusUpdated and prerenderStatusUpdated.
--  type PreloadingStatus extends string
--    enum
--      Pending
--      Running
--      Ready
--      Success
--      Failure
--      # PreloadingTriggeringOutcome which not used by prefetch nor prerender.
--      NotSupported
--
--  # TODO(https://crbug.com/1384419): revisit the list of PrefetchStatus and
--  # filter out the ones that aren't necessary to the developers.
--  type PrefetchStatus extends string
--    enum
--      # Prefetch is not disabled by PrefetchHeldback.
--      PrefetchAllowed
--      PrefetchFailedIneligibleRedirect
--      PrefetchFailedInvalidRedirect
--      PrefetchFailedMIMENotSupported
--      PrefetchFailedNetError
--      PrefetchFailedNon2XX
--      PrefetchEvictedAfterBrowsingDataRemoved
--      PrefetchEvictedAfterCandidateRemoved
--      PrefetchEvictedForNewerPrefetch
--      PrefetchHeldback
--      # A previous prefetch to the origin got a HTTP 503 response with an
--      # Retry-After header that has no elapsed yet.
--      PrefetchIneligibleRetryAfter
--      PrefetchIsPrivacyDecoy
--      PrefetchIsStale
--      PrefetchNotEligibleBrowserContextOffTheRecord
--      PrefetchNotEligibleDataSaverEnabled
--      PrefetchNotEligibleExistingProxy
--      PrefetchNotEligibleHostIsNonUnique
--      PrefetchNotEligibleNonDefaultStoragePartition
--      PrefetchNotEligibleSameSiteCrossOriginPrefetchRequiredProxy
--      PrefetchNotEligibleSchemeIsNotHttps
--      PrefetchNotEligibleUserHasCookies
--      PrefetchNotEligibleUserHasServiceWorker
--      PrefetchNotEligibleUserHasServiceWorkerNoFetchHandler
--      PrefetchNotEligibleRedirectFromServiceWorker
--      PrefetchNotEligibleRedirectToServiceWorker
--      PrefetchNotEligibleBatterySaverEnabled
--      PrefetchNotEligiblePreloadingDisabled
--      PrefetchNotFinishedInTime
--      PrefetchNotStarted
--      PrefetchNotUsedCookiesChanged
--      PrefetchProxyNotAvailable
--      # The response of the prefetch is used for the next navigation. This is
--      # the final successful state.
--      PrefetchResponseUsed
--      # The prefetch finished successfully but was never used.
--      PrefetchSuccessfulButNotUsed
--      PrefetchNotUsedProbeFailed
--
--  # Fired when a prefetch attempt is updated.
--  event prefetchStatusUpdated
--    parameters
--      PreloadingAttemptKey key
--      PreloadPipelineId pipelineId
--      # The frame id of the frame initiating prefetch.
--      Page.FrameId initiatingFrameId
--      string prefetchUrl
--      PreloadingStatus status
--      PrefetchStatus prefetchStatus
--      Network.RequestId requestId
--
--  # Information of headers to be displayed when the header mismatch occurred.
--  type PrerenderMismatchedHeaders extends object
--    properties
--      string headerName
--      optional string initialValue
--      optional string activationValue
--
--  # Fired when a prerender attempt is updated.
--  event prerenderStatusUpdated
--    parameters
--      PreloadingAttemptKey key
--      PreloadPipelineId pipelineId
--      PreloadingStatus status
--      optional PrerenderFinalStatus prerenderStatus
--      # This is used to give users more information about the name of Mojo interface
--      # that is incompatible with prerender and has caused the cancellation of the attempt.
--      optional string disallowedMojoInterface
--      optional array of PrerenderMismatchedHeaders mismatchedHeaders
--
--  # Send a list of sources for all preloading attempts in a document.
--  event preloadingAttemptSourcesUpdated
--    parameters
--      Network.LoaderId loaderId
--      array of PreloadingAttemptSource preloadingAttemptSources
--
--# This domain allows interacting with the FedCM dialog.
--experimental domain FedCm
--  # Whether this is a sign-up or sign-in action for this account, i.e.
--  # whether this account has ever been used to sign in to this RP before.
--  type LoginState extends string
--    enum
--      SignIn
--      SignUp
--
--  # The types of FedCM dialogs.
--  type DialogType extends string
--    enum
--      AccountChooser
--      AutoReauthn
--      ConfirmIdpLogin
--      Error
--
--  # The buttons on the FedCM dialog.
--  type DialogButton extends string
--    enum
--      ConfirmIdpLoginContinue
--      ErrorGotIt
--      ErrorMoreDetails
--
--  # The URLs that each account has
--  type AccountUrlType extends string
--    enum
--      TermsOfService
--      PrivacyPolicy
--
--  # Corresponds to IdentityRequestAccount
--  type Account extends object
--    properties
--      string accountId
--      string email
--      string name
--      string givenName
--      string pictureUrl
--      string idpConfigUrl
--      string idpLoginUrl
--      LoginState loginState
--      # These two are only set if the loginState is signUp
--      optional string termsOfServiceUrl
--      optional string privacyPolicyUrl
--
--  event dialogShown
--    parameters
--      string dialogId
--      DialogType dialogType
--      array of Account accounts
--      # These exist primarily so that the caller can verify the
--      # RP context was used appropriately.
--      string title
--      optional string subtitle
--
--  # Triggered when a dialog is closed, either by user action, JS abort,
--  # or a command below.
--  event dialogClosed
--    parameters
--      string dialogId
--
--  command enable
--    parameters
--      # Allows callers to disable the promise rejection delay that would
--      # normally happen, if this is unimportant to what's being tested.
--      # (step 4 of https://fedidcg.github.io/FedCM/#browser-api-rp-sign-in)
--      optional boolean disableRejectionDelay
--
--  command disable
--
--  command selectAccount
--    parameters
--      string dialogId
--      integer accountIndex
--
--  command clickDialogButton
--    parameters
--      string dialogId
--      DialogButton dialogButton
--
--  command openUrl
--    parameters
--      string dialogId
--      integer accountIndex
--      AccountUrlType accountUrlType
--
--  command dismissDialog
--    parameters
--      string dialogId
--      optional boolean triggerCooldown
--
--  # Resets the cooldown time, if any, to allow the next FedCM call to show
--  # a dialog even if one was recently dismissed by the user.
--  command resetCooldown
--
--# This domain allows interacting with the browser to control PWAs.
--experimental domain PWA
--
--  # The following types are the replica of
--  # https://crsrc.org/c/chrome/browser/web_applications/proto/web_app_os_integration_state.proto;drc=9910d3be894c8f142c977ba1023f30a656bc13fc;l=67
--  type FileHandlerAccept extends object
--    properties
--      # New name of the mimetype according to
--      # https://www.iana.org/assignments/media-types/media-types.xhtml
--      string mediaType
--      array of string fileExtensions
--
--  type FileHandler extends object
--    properties
--      string action
--      array of FileHandlerAccept accepts
--      string displayName
--
--  # Returns the following OS state for the given manifest id.
--  command getOsAppState
--    parameters
--      # The id from the webapp's manifest file, commonly it's the url of the
--      # site installing the webapp. See
--      # https://web.dev/learn/pwa/web-app-manifest.
--      string manifestId
--    returns
--      integer badgeCount
--      array of FileHandler fileHandlers
--
--  # Installs the given manifest identity, optionally using the given installUrlOrBundleUrl
--  #
--  # IWA-specific install description:
--  # manifestId corresponds to isolated-app:// + web_package::SignedWebBundleId
--  #
--  # File installation mode:
--  # The installUrlOrBundleUrl can be either file:// or http(s):// pointing
--  # to a signed web bundle (.swbn). In this case SignedWebBundleId must correspond to
--  # The .swbn file's signing key.
--  #
--  # Dev proxy installation mode:
--  # installUrlOrBundleUrl must be http(s):// that serves dev mode IWA.
--  # web_package::SignedWebBundleId must be of type dev proxy.
--  #
--  # The advantage of dev proxy mode is that all changes to IWA
--  # automatically will be reflected in the running app without
--  # reinstallation.
--  #
--  # To generate bundle id for proxy mode:
--  # 1. Generate 32 random bytes.
--  # 2. Add a specific suffix 0x00 at the end.
--  # 3. Encode the entire sequence using Base32 without padding.
--  #
--  # If Chrome is not in IWA dev
--  # mode, the installation will fail, regardless of the state of the allowlist.
--  command install
--    parameters
--      string manifestId
--      # The location of the app or bundle overriding the one derived from the
--      # manifestId.
--      optional string installUrlOrBundleUrl
--
--  # Uninstalls the given manifest_id and closes any opened app windows.
--  command uninstall
--    parameters
--      string manifestId
--
--  # Launches the installed web app, or an url in the same web app instead of the
--  # default start url if it is provided. Returns a page Target.TargetID which
--  # can be used to attach to via Target.attachToTarget or similar APIs.
--  command launch
--    parameters
--      string manifestId
--      optional string url
--    returns
--      # ID of the tab target created as a result.
--      Target.TargetID targetId
--
--  # Opens one or more local files from an installed web app identified by its
--  # manifestId. The web app needs to have file handlers registered to process
--  # the files. The API returns one or more page Target.TargetIDs which can be
--  # used to attach to via Target.attachToTarget or similar APIs.
--  # If some files in the parameters cannot be handled by the web app, they will
--  # be ignored. If none of the files can be handled, this API returns an error.
--  # If no files are provided as the parameter, this API also returns an error.
--  #
--  # According to the definition of the file handlers in the manifest file, one
--  # Target.TargetID may represent a page handling one or more files. The order
--  # of the returned Target.TargetIDs is not guaranteed.
--  #
--  # TODO(crbug.com/339454034): Check the existences of the input files.
--  command launchFilesInApp
--    parameters
--      string manifestId
--      array of string files
--    returns
--      # IDs of the tab targets created as the result.
--      array of Target.TargetID targetIds
--
--  # Opens the current page in its web app identified by the manifest id, needs
--  # to be called on a page target. This function returns immediately without
--  # waiting for the app to finish loading.
--  command openCurrentPageInApp
--    parameters
--      string manifestId
--
--  # If user prefers opening the app in browser or an app window.
--  type DisplayMode extends string
--    enum
--      standalone
--      browser
--
--  # Changes user settings of the web app identified by its manifestId. If the
--  # app was not installed, this command returns an error. Unset parameters will
--  # be ignored; unrecognized values will cause an error.
--  #
--  # Unlike the ones defined in the manifest files of the web apps, these
--  # settings are provided by the browser and controlled by the users, they
--  # impact the way the browser handling the web apps.
--  #
--  # See the comment of each parameter.
--  command changeAppUserSettings
--    parameters
--      string manifestId
--      # If user allows the links clicked on by the user in the app's scope, or
--      # extended scope if the manifest has scope extensions and the flags
--      # `DesktopPWAsLinkCapturingWithScopeExtensions` and
--      # `WebAppEnableScopeExtensions` are enabled.
--      #
--      # Note, the API does not support resetting the linkCapturing to the
--      # initial value, uninstalling and installing the web app again will reset
--      # it.
--      #
--      # TODO(crbug.com/339453269): Setting this value on ChromeOS is not
--      # supported yet.
--      optional boolean linkCapturing
--      optional DisplayMode displayMode
--
--# This domain allows configuring virtual Bluetooth devices to test
--# the web-bluetooth API.
--experimental domain BluetoothEmulation
--  # Indicates the various states of Central.
--  type CentralState extends string
--    enum
--      absent
--      powered-off
--      powered-on
--
--  # Indicates the various types of GATT event.
--  type GATTOperationType extends string
--    enum
--      connection
--      discovery
--
--  # Indicates the various types of characteristic write.
--  type CharacteristicWriteType extends string
--    enum
--      write-default-deprecated
--      write-with-response
--      write-without-response
--
--  # Indicates the various types of characteristic operation.
--  type CharacteristicOperationType extends string
--    enum
--      read
--      write
--      subscribe-to-notifications
--      unsubscribe-from-notifications
--
--  # Indicates the various types of descriptor operation.
--  type DescriptorOperationType extends string
--    enum
--      read
--      write
--
--  # Stores the manufacturer data
--  type ManufacturerData extends object
--    properties
--      # Company identifier
--      # https://bitbucket.org/bluetooth-SIG/public/src/main/assigned_numbers/company_identifiers/company_identifiers.yaml
--      # https://usb.org/developers
--      integer key
--      # Manufacturer-specific data
--      binary data
--
--  # Stores the byte data of the advertisement packet sent by a Bluetooth device.
--  type ScanRecord extends object
--    properties
--      optional string name
--      optional array of string uuids
--      # Stores the external appearance description of the device.
--      optional integer appearance
--      # Stores the transmission power of a broadcasting device.
--      optional integer txPower
--      # Key is the company identifier and the value is an array of bytes of
--      # manufacturer specific data.
--      optional array of ManufacturerData manufacturerData
--
--  # Stores the advertisement packet information that is sent by a Bluetooth device.
--  type ScanEntry extends object
--    properties
--      string deviceAddress
--      integer rssi
--      ScanRecord scanRecord
--
--  # Describes the properties of a characteristic. This follows Bluetooth Core
--  # Specification BT 4.2 Vol 3 Part G 3.3.1. Characteristic Properties.
--  type CharacteristicProperties extends object
--    properties
--      optional boolean broadcast
--      optional boolean read
--      optional boolean writeWithoutResponse
--      optional boolean write
--      optional boolean notify
--      optional boolean indicate
--      optional boolean authenticatedSignedWrites
--      optional boolean extendedProperties
--
--  # Enable the BluetoothEmulation domain.
--  command enable
--    parameters
--      # State of the simulated central.
--      CentralState state
--      # If the simulated central supports low-energy.
--      boolean leSupported
--
--  # Set the state of the simulated central.
--  command setSimulatedCentralState
--    parameters
--      # State of the simulated central.
--      CentralState state
--
--  # Disable the BluetoothEmulation domain.
--  command disable
--
--  # Simulates a peripheral with |address|, |name| and |knownServiceUuids|
--  # that has already been connected to the system.
--  command simulatePreconnectedPeripheral
--    parameters
--      string address
--      string name
--      array of ManufacturerData manufacturerData
--      array of string knownServiceUuids
--
--  # Simulates an advertisement packet described in |entry| being received by
--  # the central.
--  command simulateAdvertisement
--    parameters
--      ScanEntry entry
--
--  # Simulates the response code from the peripheral with |address| for a
--  # GATT operation of |type|. The |code| value follows the HCI Error Codes from
--  # Bluetooth Core Specification Vol 2 Part D 1.3 List Of Error Codes.
--  command simulateGATTOperationResponse
--    parameters
--      string address
--      GATTOperationType type
--      integer code
--
--  # Simulates the response from the characteristic with |characteristicId| for a
--  # characteristic operation of |type|. The |code| value follows the Error
--  # Codes from Bluetooth Core Specification Vol 3 Part F 3.4.1.1 Error Response.
--  # The |data| is expected to exist when simulating a successful read operation
--  # response.
--  command simulateCharacteristicOperationResponse
--    parameters
--      string characteristicId
--      CharacteristicOperationType type
--      integer code
--      optional binary data
--
--  # Simulates the response from the descriptor with |descriptorId| for a
--  # descriptor operation of |type|. The |code| value follows the Error
--  # Codes from Bluetooth Core Specification Vol 3 Part F 3.4.1.1 Error Response.
--  # The |data| is expected to exist when simulating a successful read operation
--  # response.
--  command simulateDescriptorOperationResponse
--    parameters
--      string descriptorId
--      DescriptorOperationType type
--      integer code
--      optional binary data
--
--  # Adds a service with |serviceUuid| to the peripheral with |address|.
--  command addService
--    parameters
--      string address
--      string serviceUuid
--    returns
--      # An identifier that uniquely represents this service.
--      string serviceId
--
--  # Removes the service respresented by |serviceId| from the simulated central.
--  command removeService
--    parameters
--      string serviceId
--
--  # Adds a characteristic with |characteristicUuid| and |properties| to the
--  # service represented by |serviceId|.
--  command addCharacteristic
--    parameters
--      string serviceId
--      string characteristicUuid
--      CharacteristicProperties properties
--    returns
--      # An identifier that uniquely represents this characteristic.
--      string characteristicId
--
--  # Removes the characteristic respresented by |characteristicId| from the
--  # simulated central.
--  command removeCharacteristic
--    parameters
--      string characteristicId
--
--  # Adds a descriptor with |descriptorUuid| to the characteristic respresented
--  # by |characteristicId|.
--  command addDescriptor
--    parameters
--      string characteristicId
--      string descriptorUuid
--    returns
--      # An identifier that uniquely represents this descriptor.
--      string descriptorId
--
--  # Removes the descriptor with |descriptorId| from the simulated central.
--  command removeDescriptor
--    parameters
--      string descriptorId
--
--  # Simulates a GATT disconnection from the peripheral with |address|.
--  command simulateGATTDisconnection
--    parameters
--      string address
--
--  # Event for when a GATT operation of |type| to the peripheral with |address|
--  # happened.
--  event gattOperationReceived
--    parameters
--      string address
--      GATTOperationType type
--
--  # Event for when a characteristic operation of |type| to the characteristic
--  # respresented by |characteristicId| happened. |data| and |writeType| is
--  # expected to exist when |type| is write.
--  event characteristicOperationReceived
--    parameters
--      string characteristicId
--      CharacteristicOperationType type
--      optional binary data
--      optional CharacteristicWriteType writeType
--
--  # Event for when a descriptor operation of |type| to the descriptor
--  # respresented by |descriptorId| happened. |data| is expected to exist when
--  # |type| is write.
--  event descriptorOperationReceived
--    parameters
--      string descriptorId
--      DescriptorOperationType type
--      optional binary data
-+include domains/Accessibility.pdl
-+include domains/Animation.pdl
-+include domains/Audits.pdl
-+include domains/Autofill.pdl
-+include domains/BackgroundService.pdl
-+include domains/BluetoothEmulation.pdl
-+include domains/Browser.pdl
-+include domains/CSS.pdl
-+include domains/CacheStorage.pdl
-+include domains/Cast.pdl
-+include domains/DOM.pdl
-+include domains/DOMDebugger.pdl
-+include domains/DOMSnapshot.pdl
-+include domains/DOMStorage.pdl
-+include domains/DeviceAccess.pdl
-+include domains/DeviceOrientation.pdl
-+include domains/Emulation.pdl
-+include domains/EventBreakpoints.pdl
-+include domains/Extensions.pdl
-+include domains/FedCm.pdl
-+include domains/Fetch.pdl
-+include domains/FileSystem.pdl
-+include domains/HeadlessExperimental.pdl
-+include domains/IO.pdl
-+include domains/IndexedDB.pdl
-+include domains/Input.pdl
-+include domains/Inspector.pdl
-+include domains/LayerTree.pdl
-+include domains/Log.pdl
-+include domains/Media.pdl
-+include domains/Memory.pdl
-+include domains/Network.pdl
-+include domains/Overlay.pdl
-+include domains/PWA.pdl
-+include domains/Page.pdl
-+include domains/Performance.pdl
-+include domains/PerformanceTimeline.pdl
-+include domains/Preload.pdl
-+include domains/Security.pdl
-+include domains/ServiceWorker.pdl
-+include domains/Storage.pdl
-+include domains/SystemInfo.pdl
-+include domains/Target.pdl
-+include domains/Tethering.pdl
-+include domains/Tracing.pdl
-+include domains/WebAudio.pdl
-+include domains/WebAuthn.pdl
-\ No newline at end of file
-diff --git a/pdl/domains/Accessibility.pdl b/pdl/domains/Accessibility.pdl
-new file mode 100644
-index 00000000..093c7101
---- /dev/null
-+++ b/pdl/domains/Accessibility.pdl
-@@ -0,0 +1,290 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain Accessibility
-+  depends on DOM
-+
-+  # Unique accessibility node identifier.
-+  type AXNodeId extends string
-+
-+  # Enum of possible property types.
-+  type AXValueType extends string
-+    enum
-+      boolean
-+      tristate
-+      booleanOrUndefined
-+      idref
-+      idrefList
-+      integer
-+      node
-+      nodeList
-+      number
-+      string
-+      computedString
-+      token
-+      tokenList
-+      domRelation
-+      role
-+      internalRole
-+      valueUndefined
-+
-+  # Enum of possible property sources.
-+  type AXValueSourceType extends string
-+    enum
-+      attribute
-+      implicit
-+      style
-+      contents
-+      placeholder
-+      relatedElement
-+
-+  # Enum of possible native property sources (as a subtype of a particular AXValueSourceType).
-+  type AXValueNativeSourceType extends string
-+    enum
-+      description
-+      figcaption
-+      label
-+      labelfor
-+      labelwrapped
-+      legend
-+      rubyannotation
-+      tablecaption
-+      title
-+      other
-+
-+  # A single source for a computed AX property.
-+  type AXValueSource extends object
-+    properties
-+      # What type of source this is.
-+      AXValueSourceType type
-+      # The value of this property source.
-+      optional AXValue value
-+      # The name of the relevant attribute, if any.
-+      optional string attribute
-+      # The value of the relevant attribute, if any.
-+      optional AXValue attributeValue
-+      # Whether this source is superseded by a higher priority source.
-+      optional boolean superseded
-+      # The native markup source for this value, e.g. a `<label>` element.
-+      optional AXValueNativeSourceType nativeSource
-+      # The value, such as a node or node list, of the native source.
-+      optional AXValue nativeSourceValue
-+      # Whether the value for this property is invalid.
-+      optional boolean invalid
-+      # Reason for the value being invalid, if it is.
-+      optional string invalidReason
-+
-+  type AXRelatedNode extends object
-+    properties
-+      # The BackendNodeId of the related DOM node.
-+      DOM.BackendNodeId backendDOMNodeId
-+      # The IDRef value provided, if any.
-+      optional string idref
-+      # The text alternative of this node in the current context.
-+      optional string text
-+
-+  type AXProperty extends object
-+    properties
-+      # The name of this property.
-+      AXPropertyName name
-+      # The value of this property.
-+      AXValue value
-+
-+  # A single computed AX property.
-+  type AXValue extends object
-+    properties
-+      # The type of this value.
-+      AXValueType type
-+      # The computed value of this property.
-+      optional any value
-+      # One or more related nodes, if applicable.
-+      optional array of AXRelatedNode relatedNodes
-+      # The sources which contributed to the computation of this property.
-+      optional array of AXValueSource sources
-+
-+  # Values of AXProperty name:
-+  # - from 'busy' to 'roledescription': states which apply to every AX node
-+  # - from 'live' to 'root': attributes which apply to nodes in live regions
-+  # - from 'autocomplete' to 'valuetext': attributes which apply to widgets
-+  # - from 'checked' to 'selected': states which apply to widgets
-+  # - from 'activedescendant' to 'owns' - relationships between elements other than parent/child/sibling.
-+  type AXPropertyName extends string
-+    enum
-+      actions
-+      busy
-+      disabled
-+      editable
-+      focusable
-+      focused
-+      hidden
-+      hiddenRoot
-+      invalid
-+      keyshortcuts
-+      settable
-+      roledescription
-+      live
-+      atomic
-+      relevant
-+      root
-+      autocomplete
-+      hasPopup
-+      level
-+      multiselectable
-+      orientation
-+      multiline
-+      readonly
-+      required
-+      valuemin
-+      valuemax
-+      valuetext
-+      checked
-+      expanded
-+      modal
-+      pressed
-+      selected
-+      activedescendant
-+      controls
-+      describedby
-+      details
-+      errormessage
-+      flowto
-+      labelledby
-+      owns
-+      url
-+
-+  # A node in the accessibility tree.
-+  type AXNode extends object
-+    properties
-+      # Unique identifier for this node.
-+      AXNodeId nodeId
-+      # Whether this node is ignored for accessibility
-+      boolean ignored
-+      # Collection of reasons why this node is hidden.
-+      optional array of AXProperty ignoredReasons
-+      # This `Node`'s role, whether explicit or implicit.
-+      optional AXValue role
-+      # This `Node`'s Chrome raw role.
-+      optional AXValue chromeRole
-+      # The accessible name for this `Node`.
-+      optional AXValue name
-+      # The accessible description for this `Node`.
-+      optional AXValue description
-+      # The value for this `Node`.
-+      optional AXValue value
-+      # All other properties
-+      optional array of AXProperty properties
-+      # ID for this node's parent.
-+      optional AXNodeId parentId
-+      # IDs for each of this node's child nodes.
-+      optional array of AXNodeId childIds
-+      # The backend ID for the associated DOM node, if any.
-+      optional DOM.BackendNodeId backendDOMNodeId
-+      # The frame ID for the frame associated with this nodes document.
-+      optional Page.FrameId frameId
-+
-+  # Disables the accessibility domain.
-+  command disable
-+
-+  # Enables the accessibility domain which causes `AXNodeId`s to remain consistent between method calls.
-+  # This turns on accessibility for the page, which can impact performance until accessibility is disabled.
-+  command enable
-+
-+  # Fetches the accessibility node and partial accessibility tree for this DOM node, if it exists.
-+  experimental command getPartialAXTree
-+    parameters
-+      # Identifier of the node to get the partial accessibility tree for.
-+      optional DOM.NodeId nodeId
-+      # Identifier of the backend node to get the partial accessibility tree for.
-+      optional DOM.BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper to get the partial accessibility tree for.
-+      optional Runtime.RemoteObjectId objectId
-+      # Whether to fetch this node's ancestors, siblings and children. Defaults to true.
-+      optional boolean fetchRelatives
-+    returns
-+      # The `Accessibility.AXNode` for this DOM node, if it exists, plus its ancestors, siblings and
-+      # children, if requested.
-+      array of AXNode nodes
-+
-+  # Fetches the entire accessibility tree for the root Document
-+  experimental command getFullAXTree
-+    parameters
-+      # The maximum depth at which descendants of the root node should be retrieved.
-+      # If omitted, the full tree is returned.
-+      optional integer depth
-+      # The frame for whose document the AX tree should be retrieved.
-+      # If omitted, the root frame is used.
-+      optional Page.FrameId frameId
-+    returns
-+      array of AXNode nodes
-+
-+  # Fetches the root node.
-+  # Requires `enable()` to have been called previously.
-+  experimental command getRootAXNode
-+    parameters
-+      # The frame in whose document the node resides.
-+      # If omitted, the root frame is used.
-+      optional Page.FrameId frameId
-+    returns
-+      AXNode node
-+
-+  # Fetches a node and all ancestors up to and including the root.
-+  # Requires `enable()` to have been called previously.
-+  experimental command getAXNodeAndAncestors
-+    parameters
-+      # Identifier of the node to get.
-+      optional DOM.NodeId nodeId
-+      # Identifier of the backend node to get.
-+      optional DOM.BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper to get.
-+      optional Runtime.RemoteObjectId objectId
-+    returns
-+      array of AXNode nodes
-+
-+  # Fetches a particular accessibility node by AXNodeId.
-+  # Requires `enable()` to have been called previously.
-+  experimental command getChildAXNodes
-+    parameters
-+      AXNodeId id
-+      # The frame in whose document the node resides.
-+      # If omitted, the root frame is used.
-+      optional Page.FrameId frameId
-+    returns
-+      array of AXNode nodes
-+
-+  # Query a DOM node's accessibility subtree for accessible name and role.
-+  # This command computes the name and role for all nodes in the subtree, including those that are
-+  # ignored for accessibility, and returns those that match the specified name and role. If no DOM
-+  # node is specified, or the DOM node does not exist, the command returns an error. If neither
-+  # `accessibleName` or `role` is specified, it returns all the accessibility nodes in the subtree.
-+  experimental command queryAXTree
-+    parameters
-+      # Identifier of the node for the root to query.
-+      optional DOM.NodeId nodeId
-+      # Identifier of the backend node for the root to query.
-+      optional DOM.BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper for the root to query.
-+      optional Runtime.RemoteObjectId objectId
-+      # Find nodes with this computed name.
-+      optional string accessibleName
-+      # Find nodes with this computed role.
-+      optional string role
-+    returns
-+      # A list of `Accessibility.AXNode` matching the specified attributes,
-+      # including nodes that are ignored for accessibility.
-+      array of AXNode nodes
-+
-+  # The loadComplete event mirrors the load complete event sent by the browser to assistive
-+  # technology when the web page has finished loading.
-+  experimental event loadComplete
-+    parameters
-+      # New document root node.
-+      AXNode root
-+
-+  # The nodesUpdated event is sent every time a previously requested node has changed the in tree.
-+  experimental event nodesUpdated
-+    parameters
-+      # Updated node data.
-+      array of AXNode nodes
-diff --git a/pdl/domains/Animation.pdl b/pdl/domains/Animation.pdl
-new file mode 100644
-index 00000000..ed97c757
---- /dev/null
-+++ b/pdl/domains/Animation.pdl
-@@ -0,0 +1,195 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain Animation
-+  depends on Runtime
-+  depends on DOM
-+
-+  # Animation instance.
-+  type Animation extends object
-+    properties
-+      # `Animation`'s id.
-+      string id
-+      # `Animation`'s name.
-+      string name
-+      # `Animation`'s internal paused state.
-+      boolean pausedState
-+      # `Animation`'s play state.
-+      string playState
-+      # `Animation`'s playback rate.
-+      number playbackRate
-+      # `Animation`'s start time.
-+      # Milliseconds for time based animations and
-+      # percentage [0 - 100] for scroll driven animations
-+      # (i.e. when viewOrScrollTimeline exists).
-+      number startTime
-+      # `Animation`'s current time.
-+      number currentTime
-+      # Animation type of `Animation`.
-+      enum type
-+        CSSTransition
-+        CSSAnimation
-+        WebAnimation
-+      # `Animation`'s source animation node.
-+      optional AnimationEffect source
-+      # A unique ID for `Animation` representing the sources that triggered this CSS
-+      # animation/transition.
-+      optional string cssId
-+      # View or scroll timeline
-+      optional ViewOrScrollTimeline viewOrScrollTimeline
-+
-+  # Timeline instance
-+  type ViewOrScrollTimeline extends object
-+    properties
-+      # Scroll container node
-+      optional DOM.BackendNodeId sourceNodeId
-+      # Represents the starting scroll position of the timeline
-+      # as a length offset in pixels from scroll origin.
-+      optional number startOffset
-+      # Represents the ending scroll position of the timeline
-+      # as a length offset in pixels from scroll origin.
-+      optional number endOffset
-+      # The element whose principal box's visibility in the
-+      # scrollport defined the progress of the timeline.
-+      # Does not exist for animations with ScrollTimeline
-+      optional DOM.BackendNodeId subjectNodeId
-+      # Orientation of the scroll
-+      DOM.ScrollOrientation axis
-+
-+  # AnimationEffect instance
-+  type AnimationEffect extends object
-+    properties
-+      # `AnimationEffect`'s delay.
-+      number delay
-+      # `AnimationEffect`'s end delay.
-+      number endDelay
-+      # `AnimationEffect`'s iteration start.
-+      number iterationStart
-+      # `AnimationEffect`'s iterations.
-+      number iterations
-+      # `AnimationEffect`'s iteration duration.
-+      # Milliseconds for time based animations and
-+      # percentage [0 - 100] for scroll driven animations
-+      # (i.e. when viewOrScrollTimeline exists).
-+      number duration
-+      # `AnimationEffect`'s playback direction.
-+      string direction
-+      # `AnimationEffect`'s fill mode.
-+      string fill
-+      # `AnimationEffect`'s target node.
-+      optional DOM.BackendNodeId backendNodeId
-+      # `AnimationEffect`'s keyframes.
-+      optional KeyframesRule keyframesRule
-+      # `AnimationEffect`'s timing function.
-+      string easing
-+
-+  # Keyframes Rule
-+  type KeyframesRule extends object
-+    properties
-+      # CSS keyframed animation's name.
-+      optional string name
-+      # List of animation keyframes.
-+      array of KeyframeStyle keyframes
-+
-+  # Keyframe Style
-+  type KeyframeStyle extends object
-+    properties
-+      # Keyframe's time offset.
-+      string offset
-+      # `AnimationEffect`'s timing function.
-+      string easing
-+
-+  # Disables animation domain notifications.
-+  command disable
-+
-+  # Enables animation domain notifications.
-+  command enable
-+
-+  # Returns the current time of the an animation.
-+  command getCurrentTime
-+    parameters
-+      # Id of animation.
-+      string id
-+    returns
-+      # Current time of the page.
-+      number currentTime
-+
-+  # Gets the playback rate of the document timeline.
-+  command getPlaybackRate
-+    returns
-+      # Playback rate for animations on page.
-+      number playbackRate
-+
-+  # Releases a set of animations to no longer be manipulated.
-+  command releaseAnimations
-+    parameters
-+      # List of animation ids to seek.
-+      array of string animations
-+
-+  # Gets the remote object of the Animation.
-+  command resolveAnimation
-+    parameters
-+      # Animation id.
-+      string animationId
-+    returns
-+      # Corresponding remote object.
-+      Runtime.RemoteObject remoteObject
-+
-+  # Seek a set of animations to a particular time within each animation.
-+  command seekAnimations
-+    parameters
-+      # List of animation ids to seek.
-+      array of string animations
-+      # Set the current time of each animation.
-+      number currentTime
-+
-+  # Sets the paused state of a set of animations.
-+  command setPaused
-+    parameters
-+      # Animations to set the pause state of.
-+      array of string animations
-+      # Paused state to set to.
-+      boolean paused
-+
-+  # Sets the playback rate of the document timeline.
-+  command setPlaybackRate
-+    parameters
-+      # Playback rate for animations on page
-+      number playbackRate
-+
-+  # Sets the timing of an animation node.
-+  command setTiming
-+    parameters
-+      # Animation id.
-+      string animationId
-+      # Duration of the animation.
-+      number duration
-+      # Delay of the animation.
-+      number delay
-+
-+  # Event for when an animation has been cancelled.
-+  event animationCanceled
-+    parameters
-+      # Id of the animation that was cancelled.
-+      string id
-+
-+  # Event for each animation that has been created.
-+  event animationCreated
-+    parameters
-+      # Id of the animation that was created.
-+      string id
-+
-+  # Event for animation that has been started.
-+  event animationStarted
-+    parameters
-+      # Animation that was started.
-+      Animation animation
-+
-+  # Event for animation that has been updated.
-+  event animationUpdated
-+    parameters
-+      # Animation that was updated.
-+      Animation animation
-diff --git a/pdl/domains/Audits.pdl b/pdl/domains/Audits.pdl
-new file mode 100644
-index 00000000..3df619c3
---- /dev/null
-+++ b/pdl/domains/Audits.pdl
-@@ -0,0 +1,755 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Audits domain allows investigation of page violations and possible improvements.
-+experimental domain Audits
-+  depends on Network
-+
-+  # Information about a cookie that is affected by an inspector issue.
-+  type AffectedCookie extends object
-+    properties
-+      # The following three properties uniquely identify a cookie
-+      string name
-+      string path
-+      string domain
-+
-+  # Information about a request that is affected by an inspector issue.
-+  type AffectedRequest extends object
-+    properties
-+      # The unique request id.
-+      optional Network.RequestId requestId
-+      string url
-+
-+  # Information about the frame affected by an inspector issue.
-+  type AffectedFrame extends object
-+    properties
-+      Page.FrameId frameId
-+
-+  type CookieExclusionReason extends string
-+    enum
-+      ExcludeSameSiteUnspecifiedTreatedAsLax
-+      ExcludeSameSiteNoneInsecure
-+      ExcludeSameSiteLax
-+      ExcludeSameSiteStrict
-+      ExcludeInvalidSameParty
-+      ExcludeSamePartyCrossPartyContext
-+      ExcludeDomainNonASCII
-+      ExcludeThirdPartyCookieBlockedInFirstPartySet
-+      ExcludeThirdPartyPhaseout
-+      ExcludePortMismatch
-+      ExcludeSchemeMismatch
-+
-+  type CookieWarningReason extends string
-+    enum
-+      WarnSameSiteUnspecifiedCrossSiteContext
-+      WarnSameSiteNoneInsecure
-+      WarnSameSiteUnspecifiedLaxAllowUnsafe
-+      WarnSameSiteStrictLaxDowngradeStrict
-+      WarnSameSiteStrictCrossDowngradeStrict
-+      WarnSameSiteStrictCrossDowngradeLax
-+      WarnSameSiteLaxCrossDowngradeStrict
-+      WarnSameSiteLaxCrossDowngradeLax
-+      WarnAttributeValueExceedsMaxSize
-+      WarnDomainNonASCII
-+      WarnThirdPartyPhaseout
-+      WarnCrossSiteRedirectDowngradeChangesInclusion
-+      WarnDeprecationTrialMetadata
-+      WarnThirdPartyCookieHeuristic
-+
-+  type CookieOperation extends string
-+    enum
-+      SetCookie
-+      ReadCookie
-+
-+  # Represents the category of insight that a cookie issue falls under.
-+  type InsightType extends string
-+    enum
-+      # Cookie domain has an entry in third-party cookie migration readiness
-+      # list:
-+      # https://github.com/privacysandbox/privacy-sandbox-dev-support/blob/main/3pc-migration-readiness.md
-+      GitHubResource
-+      # Cookie is exempted due to a grace period:
-+      # https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period
-+      GracePeriod
-+      # Cookie is exempted due a heuristics-based exemptiuon:
-+      # https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exception
-+      Heuristics
-+
-+  # Information about the suggested solution to a cookie issue.
-+  type CookieIssueInsight extends object
-+    properties
-+      InsightType type
-+      # Link to table entry in third-party cookie migration readiness list.
-+      optional string tableEntryUrl
-+
-+  # This information is currently necessary, as the front-end has a difficult
-+  # time finding a specific cookie. With this, we can convey specific error
-+  # information without the cookie.
-+  type CookieIssueDetails extends object
-+    properties
-+      # If AffectedCookie is not set then rawCookieLine contains the raw
-+      # Set-Cookie header string. This hints at a problem where the
-+      # cookie line is syntactically or semantically malformed in a way
-+      # that no valid cookie could be created.
-+      optional AffectedCookie cookie
-+      optional string rawCookieLine
-+      array of CookieWarningReason cookieWarningReasons
-+      array of CookieExclusionReason cookieExclusionReasons
-+      # Optionally identifies the site-for-cookies and the cookie url, which
-+      # may be used by the front-end as additional context.
-+      CookieOperation operation
-+      optional string siteForCookies
-+      optional string cookieUrl
-+      optional AffectedRequest request
-+      # The recommended solution to the issue.
-+      optional CookieIssueInsight insight
-+
-+  type MixedContentResolutionStatus extends string
-+    enum
-+      MixedContentBlocked
-+      MixedContentAutomaticallyUpgraded
-+      MixedContentWarning
-+
-+  type MixedContentResourceType extends string
-+    enum
-+      AttributionSrc
-+      Audio
-+      Beacon
-+      CSPReport
-+      Download
-+      EventSource
-+      Favicon
-+      Font
-+      Form
-+      Frame
-+      Image
-+      Import
-+      JSON
-+      Manifest
-+      Ping
-+      PluginData
-+      PluginResource
-+      Prefetch
-+      Resource
-+      Script
-+      ServiceWorker
-+      SharedWorker
-+      SpeculationRules
-+      Stylesheet
-+      Track
-+      Video
-+      Worker
-+      XMLHttpRequest
-+      XSLT
-+
-+  type MixedContentIssueDetails extends object
-+    properties
-+      # The type of resource causing the mixed content issue (css, js, iframe,
-+      # form,...). Marked as optional because it is mapped to from
-+      # blink::mojom::RequestContextType, which will be replaced
-+      # by network::mojom::RequestDestination
-+      optional MixedContentResourceType resourceType
-+      # The way the mixed content issue is being resolved.
-+      MixedContentResolutionStatus resolutionStatus
-+      # The unsafe http url causing the mixed content issue.
-+      string insecureURL
-+      # The url responsible for the call to an unsafe url.
-+      string mainResourceURL
-+      # The mixed content request.
-+      # Does not always exist (e.g. for unsafe form submission urls).
-+      optional AffectedRequest request
-+      # Optional because not every mixed content issue is necessarily linked to a frame.
-+      optional AffectedFrame frame
-+
-+  # Enum indicating the reason a response has been blocked. These reasons are
-+  # refinements of the net error BLOCKED_BY_RESPONSE.
-+  type BlockedByResponseReason extends string
-+    enum
-+      CoepFrameResourceNeedsCoepHeader
-+      CoopSandboxedIFrameCannotNavigateToCoopPage
-+      CorpNotSameOrigin
-+      CorpNotSameOriginAfterDefaultedToSameOriginByCoep
-+      CorpNotSameOriginAfterDefaultedToSameOriginByDip
-+      CorpNotSameOriginAfterDefaultedToSameOriginByCoepAndDip
-+      CorpNotSameSite
-+      SRIMessageSignatureMismatch
-+
-+  # Details for a request that has been blocked with the BLOCKED_BY_RESPONSE
-+  # code. Currently only used for COEP/COOP, but may be extended to include
-+  # some CSP errors in the future.
-+  type BlockedByResponseIssueDetails extends object
-+    properties
-+      AffectedRequest request
-+      optional AffectedFrame parentFrame
-+      optional AffectedFrame blockedFrame
-+      BlockedByResponseReason reason
-+
-+  type HeavyAdResolutionStatus extends string
-+    enum
-+      HeavyAdBlocked
-+      HeavyAdWarning
-+
-+  type HeavyAdReason extends string
-+    enum
-+      NetworkTotalLimit
-+      CpuTotalLimit
-+      CpuPeakLimit
-+
-+  type HeavyAdIssueDetails extends object
-+    properties
-+      # The resolution status, either blocking the content or warning.
-+      HeavyAdResolutionStatus resolution
-+      # The reason the ad was blocked, total network or cpu or peak cpu.
-+      HeavyAdReason reason
-+      # The frame that was blocked.
-+      AffectedFrame frame
-+
-+  type ContentSecurityPolicyViolationType extends string
-+    enum
-+      kInlineViolation
-+      kEvalViolation
-+      kURLViolation
-+      kSRIViolation
-+      kTrustedTypesSinkViolation
-+      kTrustedTypesPolicyViolation
-+      kWasmEvalViolation
-+
-+  type SourceCodeLocation extends object
-+    properties
-+      optional Runtime.ScriptId scriptId
-+      string url
-+      integer lineNumber
-+      integer columnNumber
-+
-+  type ContentSecurityPolicyIssueDetails extends object
-+    properties
-+      # The url not included in allowed sources.
-+      optional string blockedURL
-+      # Specific directive that is violated, causing the CSP issue.
-+      string violatedDirective
-+      boolean isReportOnly
-+      ContentSecurityPolicyViolationType contentSecurityPolicyViolationType
-+      optional AffectedFrame frameAncestor
-+      optional SourceCodeLocation sourceCodeLocation
-+      optional DOM.BackendNodeId violatingNodeId
-+
-+  type SharedArrayBufferIssueType extends string
-+    enum
-+      TransferIssue
-+      CreationIssue
-+
-+  # Details for a issue arising from an SAB being instantiated in, or
-+  # transferred to a context that is not cross-origin isolated.
-+  type SharedArrayBufferIssueDetails extends object
-+    properties
-+      SourceCodeLocation sourceCodeLocation
-+      boolean isWarning
-+      SharedArrayBufferIssueType type
-+
-+  type LowTextContrastIssueDetails extends object
-+    properties
-+      DOM.BackendNodeId violatingNodeId
-+      string violatingNodeSelector
-+      number contrastRatio
-+      number thresholdAA
-+      number thresholdAAA
-+      string fontSize
-+      string fontWeight
-+
-+  # Details for a CORS related issue, e.g. a warning or error related to
-+  # CORS RFC1918 enforcement.
-+  type CorsIssueDetails extends object
-+    properties
-+      Network.CorsErrorStatus corsErrorStatus
-+      boolean isWarning
-+      AffectedRequest request
-+      optional SourceCodeLocation location
-+      optional string initiatorOrigin
-+      optional Network.IPAddressSpace resourceIPAddressSpace
-+      optional Network.ClientSecurityState clientSecurityState
-+
-+  type AttributionReportingIssueType extends string
-+    enum
-+      PermissionPolicyDisabled
-+      UntrustworthyReportingOrigin
-+      InsecureContext
-+      # TODO(apaseltiner): Rename this to InvalidRegisterSourceHeader
-+      InvalidHeader
-+      InvalidRegisterTriggerHeader
-+      SourceAndTriggerHeaders
-+      SourceIgnored
-+      TriggerIgnored
-+      OsSourceIgnored
-+      OsTriggerIgnored
-+      InvalidRegisterOsSourceHeader
-+      InvalidRegisterOsTriggerHeader
-+      WebAndOsHeaders
-+      NoWebOrOsSupport
-+      NavigationRegistrationWithoutTransientUserActivation
-+      InvalidInfoHeader
-+      NoRegisterSourceHeader
-+      NoRegisterTriggerHeader
-+      NoRegisterOsSourceHeader
-+      NoRegisterOsTriggerHeader
-+      NavigationRegistrationUniqueScopeAlreadySet
-+
-+  type SharedDictionaryError extends string
-+    enum
-+      UseErrorCrossOriginNoCorsRequest
-+      UseErrorDictionaryLoadFailure
-+      UseErrorMatchingDictionaryNotUsed
-+      UseErrorUnexpectedContentDictionaryHeader
-+      WriteErrorCossOriginNoCorsRequest
-+      WriteErrorDisallowedBySettings
-+      WriteErrorExpiredResponse
-+      WriteErrorFeatureDisabled
-+      WriteErrorInsufficientResources
-+      WriteErrorInvalidMatchField
-+      WriteErrorInvalidStructuredHeader
-+      WriteErrorNavigationRequest
-+      WriteErrorNoMatchField
-+      WriteErrorNonListMatchDestField
-+      WriteErrorNonSecureContext
-+      WriteErrorNonStringIdField
-+      WriteErrorNonStringInMatchDestList
-+      WriteErrorNonStringMatchField
-+      WriteErrorNonTokenTypeField
-+      WriteErrorRequestAborted
-+      WriteErrorShuttingDown
-+      WriteErrorTooLongIdField
-+      WriteErrorUnsupportedType
-+
-+  type SRIMessageSignatureError extends string
-+    enum
-+      MissingSignatureHeader
-+      MissingSignatureInputHeader
-+      InvalidSignatureHeader
-+      InvalidSignatureInputHeader
-+      SignatureHeaderValueIsNotByteSequence
-+      SignatureHeaderValueIsParameterized
-+      SignatureHeaderValueIsIncorrectLength
-+      SignatureInputHeaderMissingLabel
-+      SignatureInputHeaderValueNotInnerList
-+      SignatureInputHeaderValueMissingComponents
-+      SignatureInputHeaderInvalidComponentType
-+      SignatureInputHeaderInvalidComponentName
-+      SignatureInputHeaderInvalidHeaderComponentParameter
-+      SignatureInputHeaderInvalidDerivedComponentParameter
-+      SignatureInputHeaderKeyIdLength
-+      SignatureInputHeaderInvalidParameter
-+      SignatureInputHeaderMissingRequiredParameters
-+      ValidationFailedSignatureExpired
-+      ValidationFailedInvalidLength
-+      ValidationFailedSignatureMismatch
-+      ValidationFailedIntegrityMismatch
-+
-+  type UnencodedDigestError extends string
-+    enum
-+      MalformedDictionary
-+      UnknownAlgorithm
-+      IncorrectDigestType
-+      IncorrectDigestLength
-+
-+  # Details for issues around "Attribution Reporting API" usage.
-+  # Explainer: https://github.com/WICG/attribution-reporting-api
-+  type AttributionReportingIssueDetails extends object
-+    properties
-+      AttributionReportingIssueType violationType
-+      optional AffectedRequest request
-+      optional DOM.BackendNodeId violatingNodeId
-+      optional string invalidParameter
-+
-+# Details for issues about documents in Quirks Mode
-+# or Limited Quirks Mode that affects page layouting.
-+  type QuirksModeIssueDetails extends object
-+    properties
-+      # If false, it means the document's mode is "quirks"
-+      # instead of "limited-quirks".
-+      boolean isLimitedQuirksMode
-+      DOM.BackendNodeId documentNodeId
-+      string url
-+      Page.FrameId frameId
-+      Network.LoaderId loaderId
-+
-+  deprecated type NavigatorUserAgentIssueDetails extends object
-+    properties
-+      string url
-+      optional SourceCodeLocation location
-+
-+  type SharedDictionaryIssueDetails extends object
-+    properties
-+      SharedDictionaryError sharedDictionaryError
-+      AffectedRequest request
-+
-+  type SRIMessageSignatureIssueDetails extends object
-+    properties
-+      SRIMessageSignatureError error
-+      string signatureBase
-+      array of string integrityAssertions
-+      AffectedRequest request
-+
-+  type UnencodedDigestIssueDetails extends object
-+    properties
-+      UnencodedDigestError error
-+      AffectedRequest request
-+
-+  type GenericIssueErrorType extends string
-+    enum
-+      FormLabelForNameError
-+      FormDuplicateIdForInputError
-+      FormInputWithNoLabelError
-+      FormAutocompleteAttributeEmptyError
-+      FormEmptyIdAndNameAttributesForInputError
-+      FormAriaLabelledByToNonExistingId
-+      FormInputAssignedAutocompleteValueToIdOrNameAttributeError
-+      FormLabelHasNeitherForNorNestedInput
-+      FormLabelForMatchesNonExistingIdError
-+      FormInputHasWrongButWellIntendedAutocompleteValueError
-+      ResponseWasBlockedByORB
-+
-+  # Depending on the concrete errorType, different properties are set.
-+  type GenericIssueDetails extends object
-+    properties
-+      # Issues with the same errorType are aggregated in the frontend.
-+      GenericIssueErrorType errorType
-+      optional Page.FrameId frameId
-+      optional DOM.BackendNodeId violatingNodeId
-+      optional string violatingNodeAttribute
-+      optional AffectedRequest request
-+
-+  # This issue tracks information needed to print a deprecation message.
-+  # https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/frame/third_party/blink/renderer/core/frame/deprecation/README.md
-+  type DeprecationIssueDetails extends object
-+    properties
-+      optional AffectedFrame affectedFrame
-+      SourceCodeLocation sourceCodeLocation
-+      # One of the deprecation names from third_party/blink/renderer/core/frame/deprecation/deprecation.json5
-+      string type
-+
-+  # This issue warns about sites in the redirect chain of a finished navigation
-+  # that may be flagged as trackers and have their state cleared if they don't
-+  # receive a user interaction. Note that in this context 'site' means eTLD+1.
-+  # For example, if the URL `https://example.test:80/bounce` was in the
-+  # redirect chain, the site reported would be `example.test`.
-+  type BounceTrackingIssueDetails extends object
-+    properties
-+      array of string trackingSites
-+
-+  # This issue warns about third-party sites that are accessing cookies on the
-+  # current page, and have been permitted due to having a global metadata grant.
-+  # Note that in this context 'site' means eTLD+1. For example, if the URL
-+  # `https://example.test:80/web_page` was accessing cookies, the site reported
-+  # would be `example.test`.
-+  type CookieDeprecationMetadataIssueDetails extends object
-+    properties
-+      array of string allowedSites
-+      number optOutPercentage
-+      boolean isOptOutTopLevel
-+      CookieOperation operation
-+
-+  type ClientHintIssueReason extends string
-+    enum
-+      # Items in the accept-ch meta tag allow list must be valid origins.
-+      # No special values (e.g. self, none, and *) are permitted.
-+      MetaTagAllowListInvalidOrigin
-+      # Only accept-ch meta tags in the original HTML sent from the server
-+      # are respected. Any injected via javascript (or other means) are ignored.
-+      MetaTagModifiedHTML
-+
-+  type FederatedAuthRequestIssueDetails extends object
-+    properties
-+      FederatedAuthRequestIssueReason federatedAuthRequestIssueReason
-+
-+  # Represents the failure reason when a federated authentication reason fails.
-+  # Should be updated alongside RequestIdTokenStatus in
-+  # third_party/blink/public/mojom/devtools/inspector_issue.mojom to include
-+  # all cases except for success.
-+  type FederatedAuthRequestIssueReason extends string
-+    enum
-+      ShouldEmbargo
-+      TooManyRequests
-+      WellKnownHttpNotFound
-+      WellKnownNoResponse
-+      WellKnownInvalidResponse
-+      WellKnownListEmpty
-+      WellKnownInvalidContentType
-+      ConfigNotInWellKnown
-+      WellKnownTooBig
-+      ConfigHttpNotFound
-+      ConfigNoResponse
-+      ConfigInvalidResponse
-+      ConfigInvalidContentType
-+      ClientMetadataHttpNotFound
-+      ClientMetadataNoResponse
-+      ClientMetadataInvalidResponse
-+      ClientMetadataInvalidContentType
-+      IdpNotPotentiallyTrustworthy
-+      DisabledInSettings
-+      DisabledInFlags
-+      ErrorFetchingSignin
-+      InvalidSigninResponse
-+      AccountsHttpNotFound
-+      AccountsNoResponse
-+      AccountsInvalidResponse
-+      AccountsListEmpty
-+      AccountsInvalidContentType
-+      IdTokenHttpNotFound
-+      IdTokenNoResponse
-+      IdTokenInvalidResponse
-+      IdTokenIdpErrorResponse
-+      IdTokenCrossSiteIdpErrorResponse
-+      IdTokenInvalidRequest
-+      IdTokenInvalidContentType
-+      ErrorIdToken
-+      Canceled
-+      RpPageNotVisible
-+      SilentMediationFailure
-+      ThirdPartyCookiesBlocked
-+      NotSignedInWithIdp
-+      MissingTransientUserActivation
-+      ReplacedByActiveMode
-+      InvalidFieldsSpecified
-+      RelyingPartyOriginIsOpaque
-+      TypeNotMatching
-+      UiDismissedNoEmbargo
-+      CorsError
-+      SuppressedBySegmentationPlatform
-+
-+  type FederatedAuthUserInfoRequestIssueDetails extends object
-+    properties
-+      FederatedAuthUserInfoRequestIssueReason federatedAuthUserInfoRequestIssueReason
-+
-+  # Represents the failure reason when a getUserInfo() call fails.
-+  # Should be updated alongside FederatedAuthUserInfoRequestResult in
-+  # third_party/blink/public/mojom/devtools/inspector_issue.mojom.
-+  type FederatedAuthUserInfoRequestIssueReason extends string
-+    enum
-+      NotSameOrigin
-+      NotIframe
-+      NotPotentiallyTrustworthy
-+      NoApiPermission
-+      NotSignedInWithIdp
-+      NoAccountSharingPermission
-+      InvalidConfigOrWellKnown
-+      InvalidAccountsResponse
-+      NoReturningUserFromFetchedAccounts
-+
-+  # This issue tracks client hints related issues. It's used to deprecate old
-+  # features, encourage the use of new ones, and provide general guidance.
-+  type ClientHintIssueDetails extends object
-+    properties
-+      SourceCodeLocation sourceCodeLocation
-+      ClientHintIssueReason clientHintIssueReason
-+
-+  type FailedRequestInfo extends object
-+    properties
-+      # The URL that failed to load.
-+      string url
-+      # The failure message for the failed request.
-+      string failureMessage
-+      optional Network.RequestId requestId
-+
-+  type PartitioningBlobURLInfo extends string
-+    enum
-+      BlockedCrossPartitionFetching
-+      EnforceNoopenerForNavigation
-+
-+  type PartitioningBlobURLIssueDetails extends object
-+    properties
-+      # The BlobURL that failed to load.
-+      string url
-+      # Additional information about the Partitioning Blob URL issue.
-+      PartitioningBlobURLInfo partitioningBlobURLInfo
-+
-+  type ElementAccessibilityIssueReason extends string
-+    enum
-+      DisallowedSelectChild
-+      DisallowedOptGroupChild
-+      NonPhrasingContentOptionChild
-+      InteractiveContentOptionChild
-+      InteractiveContentLegendChild
-+      InteractiveContentSummaryDescendant
-+
-+  # This issue warns about errors in the select or summary element content model.
-+  type ElementAccessibilityIssueDetails extends object
-+    properties
-+      DOM.BackendNodeId nodeId
-+      ElementAccessibilityIssueReason elementAccessibilityIssueReason
-+      boolean hasDisallowedAttributes
-+
-+  type StyleSheetLoadingIssueReason extends string
-+    enum
-+      LateImportRule
-+      RequestFailed
-+
-+  # This issue warns when a referenced stylesheet couldn't be loaded.
-+  type StylesheetLoadingIssueDetails extends object
-+    properties
-+      # Source code position that referenced the failing stylesheet.
-+      SourceCodeLocation sourceCodeLocation
-+      # Reason why the stylesheet couldn't be loaded.
-+      StyleSheetLoadingIssueReason styleSheetLoadingIssueReason
-+      # Contains additional info when the failure was due to a request.
-+      optional FailedRequestInfo failedRequestInfo
-+
-+  type PropertyRuleIssueReason extends string
-+    enum
-+      InvalidSyntax
-+      InvalidInitialValue
-+      InvalidInherits
-+      InvalidName
-+
-+  # This issue warns about errors in property rules that lead to property
-+  # registrations being ignored.
-+  type PropertyRuleIssueDetails extends object
-+    properties
-+      # Source code position of the property rule.
-+      SourceCodeLocation sourceCodeLocation
-+      # Reason why the property rule was discarded.
-+      PropertyRuleIssueReason propertyRuleIssueReason
-+      # The value of the property rule property that failed to parse
-+      optional string propertyValue
-+
-+  type UserReidentificationIssueType extends string
-+    enum
-+      BlockedFrameNavigation
-+      BlockedSubresource
-+      NoisedCanvasReadback
-+
-+  # This issue warns about uses of APIs that may be considered misuse to
-+  # re-identify users.
-+  type UserReidentificationIssueDetails extends object
-+    properties
-+      UserReidentificationIssueType type
-+      # Applies to BlockedFrameNavigation and BlockedSubresource issue types.
-+      optional AffectedRequest request
-+      # Applies to NoisedCanvasReadback issue type.
-+      optional SourceCodeLocation sourceCodeLocation
-+
-+  # A unique identifier for the type of issue. Each type may use one of the
-+  # optional fields in InspectorIssueDetails to convey more specific
-+  # information about the kind of issue.
-+  type InspectorIssueCode extends string
-+    enum
-+      CookieIssue
-+      MixedContentIssue
-+      BlockedByResponseIssue
-+      HeavyAdIssue
-+      ContentSecurityPolicyIssue
-+      SharedArrayBufferIssue
-+      LowTextContrastIssue
-+      CorsIssue
-+      AttributionReportingIssue
-+      QuirksModeIssue
-+      PartitioningBlobURLIssue
-+      # Deprecated
-+      NavigatorUserAgentIssue
-+      GenericIssue
-+      DeprecationIssue
-+      ClientHintIssue
-+      FederatedAuthRequestIssue
-+      BounceTrackingIssue
-+      CookieDeprecationMetadataIssue
-+      StylesheetLoadingIssue
-+      FederatedAuthUserInfoRequestIssue
-+      PropertyRuleIssue
-+      SharedDictionaryIssue
-+      ElementAccessibilityIssue
-+      SRIMessageSignatureIssue
-+      UnencodedDigestIssue
-+      UserReidentificationIssue
-+
-+  # This struct holds a list of optional fields with additional information
-+  # specific to the kind of issue. When adding a new issue code, please also
-+  # add a new optional field to this type.
-+  type InspectorIssueDetails extends object
-+    properties
-+      optional CookieIssueDetails cookieIssueDetails
-+      optional MixedContentIssueDetails mixedContentIssueDetails
-+      optional BlockedByResponseIssueDetails blockedByResponseIssueDetails
-+      optional HeavyAdIssueDetails heavyAdIssueDetails
-+      optional ContentSecurityPolicyIssueDetails contentSecurityPolicyIssueDetails
-+      optional SharedArrayBufferIssueDetails sharedArrayBufferIssueDetails
-+      optional LowTextContrastIssueDetails lowTextContrastIssueDetails
-+      optional CorsIssueDetails corsIssueDetails
-+      optional AttributionReportingIssueDetails attributionReportingIssueDetails
-+      optional QuirksModeIssueDetails quirksModeIssueDetails
-+      optional PartitioningBlobURLIssueDetails partitioningBlobURLIssueDetails
-+      deprecated optional NavigatorUserAgentIssueDetails navigatorUserAgentIssueDetails
-+      optional GenericIssueDetails genericIssueDetails
-+      optional DeprecationIssueDetails deprecationIssueDetails
-+      optional ClientHintIssueDetails clientHintIssueDetails
-+      optional FederatedAuthRequestIssueDetails federatedAuthRequestIssueDetails
-+      optional BounceTrackingIssueDetails bounceTrackingIssueDetails
-+      optional CookieDeprecationMetadataIssueDetails cookieDeprecationMetadataIssueDetails
-+      optional StylesheetLoadingIssueDetails stylesheetLoadingIssueDetails
-+      optional PropertyRuleIssueDetails propertyRuleIssueDetails
-+      optional FederatedAuthUserInfoRequestIssueDetails federatedAuthUserInfoRequestIssueDetails
-+      optional SharedDictionaryIssueDetails sharedDictionaryIssueDetails
-+      optional ElementAccessibilityIssueDetails elementAccessibilityIssueDetails
-+      optional SRIMessageSignatureIssueDetails sriMessageSignatureIssueDetails
-+      optional UnencodedDigestIssueDetails unencodedDigestIssueDetails
-+      optional UserReidentificationIssueDetails userReidentificationIssueDetails
-+
-+  # A unique id for a DevTools inspector issue. Allows other entities (e.g.
-+  # exceptions, CDP message, console messages, etc.) to reference an issue.
-+  type IssueId extends string
-+
-+  # An inspector issue reported from the back-end.
-+  type InspectorIssue extends object
-+    properties
-+      InspectorIssueCode code
-+      InspectorIssueDetails details
-+      # A unique id for this issue. May be omitted if no other entity (e.g.
-+      # exception, CDP message, etc.) is referencing this issue.
-+      optional IssueId issueId
-+
-+  # Returns the response body and size if it were re-encoded with the specified settings. Only
-+  # applies to images.
-+  command getEncodedResponse
-+    parameters
-+      # Identifier of the network request to get content for.
-+      Network.RequestId requestId
-+      # The encoding to use.
-+      enum encoding
-+        webp
-+        jpeg
-+        png
-+      # The quality of the encoding (0-1). (defaults to 1)
-+      optional number quality
-+      # Whether to only return the size information (defaults to false).
-+      optional boolean sizeOnly
-+    returns
-+      # The encoded body as a base64 string. Omitted if sizeOnly is true.
-+      optional binary body
-+      # Size before re-encoding.
-+      integer originalSize
-+      # Size after re-encoding.
-+      integer encodedSize
-+
-+  # Disables issues domain, prevents further issues from being reported to the client.
-+  command disable
-+
-+  # Enables issues domain, sends the issues collected so far to the client by means of the
-+  # `issueAdded` event.
-+  command enable
-+
-+  # Runs the contrast check for the target page. Found issues are reported
-+  # using Audits.issueAdded event.
-+  command checkContrast
-+    parameters
-+      # Whether to report WCAG AAA level issues. Default is false.
-+      optional boolean reportAAA
-+
-+  # Runs the form issues check for the target page. Found issues are reported
-+  # using Audits.issueAdded event.
-+  command checkFormsIssues
-+    returns
-+      array of GenericIssueDetails formIssues
-+
-+  event issueAdded
-+    parameters
-+      InspectorIssue issue
-diff --git a/pdl/domains/Autofill.pdl b/pdl/domains/Autofill.pdl
-new file mode 100644
-index 00000000..bafa83a2
---- /dev/null
-+++ b/pdl/domains/Autofill.pdl
-@@ -0,0 +1,106 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Defines commands and events for Autofill.
-+experimental domain Autofill
-+  type CreditCard extends object
-+    properties
-+      # 16-digit credit card number.
-+      string number
-+      # Name of the credit card owner.
-+      string name
-+      # 2-digit expiry month.
-+      string expiryMonth
-+      # 4-digit expiry year.
-+      string expiryYear
-+      # 3-digit card verification code.
-+      string cvc
-+
-+  type AddressField extends object
-+    properties
-+      # address field name, for example GIVEN_NAME.
-+      string name
-+      # address field value, for example Jon Doe.
-+      string value
-+
-+  # A list of address fields.
-+  type AddressFields extends object
-+    properties
-+      array of AddressField fields
-+
-+  type Address extends object
-+    properties
-+      # fields and values defining an address.
-+      array of AddressField fields
-+
-+  # Defines how an address can be displayed like in chrome://settings/addresses.
-+  # Address UI is a two dimensional array, each inner array is an "address information line", and when rendered in a UI surface should be displayed as such.
-+  # The following address UI for instance:
-+  # [[{name: "GIVE_NAME", value: "Jon"}, {name: "FAMILY_NAME", value: "Doe"}], [{name: "CITY", value: "Munich"}, {name: "ZIP", value: "81456"}]]
-+  # should allow the receiver to render:
-+  # Jon Doe
-+  # Munich 81456
-+  type AddressUI extends object
-+    properties
-+      # A two dimension array containing the representation of values from an address profile.
-+      array of AddressFields addressFields
-+
-+  # Specified whether a filled field was done so by using the html autocomplete attribute or autofill heuristics.
-+  type FillingStrategy extends string
-+    enum
-+      autocompleteAttribute
-+      autofillInferred
-+
-+  type FilledField extends object
-+    properties
-+      # The type of the field, e.g text, password etc.
-+      string htmlType
-+      # the html id
-+      string id
-+      # the html name
-+      string name
-+      # the field value
-+      string value
-+      # The actual field type, e.g FAMILY_NAME
-+      string autofillType
-+      # The filling strategy
-+      FillingStrategy fillingStrategy
-+      # The frame the field belongs to
-+      Page.FrameId frameId
-+      # The form field's DOM node
-+      DOM.BackendNodeId fieldId
-+
-+  # Emitted when an address form is filled.
-+  event addressFormFilled
-+    parameters
-+      # Information about the fields that were filled
-+      array of FilledField filledFields
-+      # An UI representation of the address used to fill the form.
-+      # Consists of a 2D array where each child represents an address/profile line.
-+      AddressUI addressUi
-+
-+  # Trigger autofill on a form identified by the fieldId.
-+  # If the field and related form cannot be autofilled, returns an error.
-+  command trigger
-+    parameters
-+      # Identifies a field that serves as an anchor for autofill.
-+      DOM.BackendNodeId fieldId
-+      # Identifies the frame that field belongs to.
-+      optional Page.FrameId frameId
-+      # Credit card information to fill out the form. Credit card data is not saved.
-+      CreditCard card
-+
-+  # Set addresses so that developers can verify their forms implementation.
-+  command setAddresses
-+    # Test addresses for the available countries.
-+    parameters
-+      array of Address addresses
-+
-+  # Disables autofill domain notifications.
-+  command disable
-+
-+  # Enables autofill domain notifications.
-+  command enable
-diff --git a/pdl/domains/BackgroundService.pdl b/pdl/domains/BackgroundService.pdl
-new file mode 100644
-index 00000000..fc96ca5b
---- /dev/null
-+++ b/pdl/domains/BackgroundService.pdl
-@@ -0,0 +1,77 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Defines events for background web platform features.
-+experimental domain BackgroundService
-+  # The Background Service that will be associated with the commands/events.
-+  # Every Background Service operates independently, but they share the same
-+  # API.
-+  type ServiceName extends string
-+    enum
-+      backgroundFetch
-+      backgroundSync
-+      pushMessaging
-+      notifications
-+      paymentHandler
-+      periodicBackgroundSync
-+
-+  # Enables event updates for the service.
-+  command startObserving
-+    parameters
-+      ServiceName service
-+
-+  # Disables event updates for the service.
-+  command stopObserving
-+    parameters
-+      ServiceName service
-+
-+  # Set the recording state for the service.
-+  command setRecording
-+    parameters
-+      boolean shouldRecord
-+      ServiceName service
-+
-+  # Clears all stored data for the service.
-+  command clearEvents
-+    parameters
-+      ServiceName service
-+
-+  # Called when the recording state for the service has been updated.
-+  event recordingStateChanged
-+    parameters
-+      boolean isRecording
-+      ServiceName service
-+
-+  # A key-value pair for additional event information to pass along.
-+  type EventMetadata extends object
-+    properties
-+      string key
-+      string value
-+
-+  type BackgroundServiceEvent extends object
-+    properties
-+      # Timestamp of the event (in seconds).
-+      Network.TimeSinceEpoch timestamp
-+      # The origin this event belongs to.
-+      string origin
-+      # The Service Worker ID that initiated the event.
-+      ServiceWorker.RegistrationID serviceWorkerRegistrationId
-+      # The Background Service this event belongs to.
-+      ServiceName service
-+      # A description of the event.
-+      string eventName
-+      # An identifier that groups related events together.
-+      string instanceId
-+      # A list of event-specific information.
-+      array of EventMetadata eventMetadata
-+      # Storage key this event belongs to.
-+      string storageKey
-+
-+  # Called with all existing backgroundServiceEvents when enabled, and all new
-+  # events afterwards if enabled and recording.
-+  event backgroundServiceEventReceived
-+    parameters
-+      BackgroundServiceEvent backgroundServiceEvent
-diff --git a/pdl/domains/BluetoothEmulation.pdl b/pdl/domains/BluetoothEmulation.pdl
-new file mode 100644
-index 00000000..261e3784
---- /dev/null
-+++ b/pdl/domains/BluetoothEmulation.pdl
-@@ -0,0 +1,227 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain allows configuring virtual Bluetooth devices to test
-+# the web-bluetooth API.
-+experimental domain BluetoothEmulation
-+  # Indicates the various states of Central.
-+  type CentralState extends string
-+    enum
-+      absent
-+      powered-off
-+      powered-on
-+
-+  # Indicates the various types of GATT event.
-+  type GATTOperationType extends string
-+    enum
-+      connection
-+      discovery
-+
-+  # Indicates the various types of characteristic write.
-+  type CharacteristicWriteType extends string
-+    enum
-+      write-default-deprecated
-+      write-with-response
-+      write-without-response
-+
-+  # Indicates the various types of characteristic operation.
-+  type CharacteristicOperationType extends string
-+    enum
-+      read
-+      write
-+      subscribe-to-notifications
-+      unsubscribe-from-notifications
-+
-+  # Indicates the various types of descriptor operation.
-+  type DescriptorOperationType extends string
-+    enum
-+      read
-+      write
-+
-+  # Stores the manufacturer data
-+  type ManufacturerData extends object
-+    properties
-+      # Company identifier
-+      # https://bitbucket.org/bluetooth-SIG/public/src/main/assigned_numbers/company_identifiers/company_identifiers.yaml
-+      # https://usb.org/developers
-+      integer key
-+      # Manufacturer-specific data
-+      binary data
-+
-+  # Stores the byte data of the advertisement packet sent by a Bluetooth device.
-+  type ScanRecord extends object
-+    properties
-+      optional string name
-+      optional array of string uuids
-+      # Stores the external appearance description of the device.
-+      optional integer appearance
-+      # Stores the transmission power of a broadcasting device.
-+      optional integer txPower
-+      # Key is the company identifier and the value is an array of bytes of
-+      # manufacturer specific data.
-+      optional array of ManufacturerData manufacturerData
-+
-+  # Stores the advertisement packet information that is sent by a Bluetooth device.
-+  type ScanEntry extends object
-+    properties
-+      string deviceAddress
-+      integer rssi
-+      ScanRecord scanRecord
-+
-+  # Describes the properties of a characteristic. This follows Bluetooth Core
-+  # Specification BT 4.2 Vol 3 Part G 3.3.1. Characteristic Properties.
-+  type CharacteristicProperties extends object
-+    properties
-+      optional boolean broadcast
-+      optional boolean read
-+      optional boolean writeWithoutResponse
-+      optional boolean write
-+      optional boolean notify
-+      optional boolean indicate
-+      optional boolean authenticatedSignedWrites
-+      optional boolean extendedProperties
-+
-+  # Enable the BluetoothEmulation domain.
-+  command enable
-+    parameters
-+      # State of the simulated central.
-+      CentralState state
-+      # If the simulated central supports low-energy.
-+      boolean leSupported
-+
-+  # Set the state of the simulated central.
-+  command setSimulatedCentralState
-+    parameters
-+      # State of the simulated central.
-+      CentralState state
-+
-+  # Disable the BluetoothEmulation domain.
-+  command disable
-+
-+  # Simulates a peripheral with |address|, |name| and |knownServiceUuids|
-+  # that has already been connected to the system.
-+  command simulatePreconnectedPeripheral
-+    parameters
-+      string address
-+      string name
-+      array of ManufacturerData manufacturerData
-+      array of string knownServiceUuids
-+
-+  # Simulates an advertisement packet described in |entry| being received by
-+  # the central.
-+  command simulateAdvertisement
-+    parameters
-+      ScanEntry entry
-+
-+  # Simulates the response code from the peripheral with |address| for a
-+  # GATT operation of |type|. The |code| value follows the HCI Error Codes from
-+  # Bluetooth Core Specification Vol 2 Part D 1.3 List Of Error Codes.
-+  command simulateGATTOperationResponse
-+    parameters
-+      string address
-+      GATTOperationType type
-+      integer code
-+
-+  # Simulates the response from the characteristic with |characteristicId| for a
-+  # characteristic operation of |type|. The |code| value follows the Error
-+  # Codes from Bluetooth Core Specification Vol 3 Part F 3.4.1.1 Error Response.
-+  # The |data| is expected to exist when simulating a successful read operation
-+  # response.
-+  command simulateCharacteristicOperationResponse
-+    parameters
-+      string characteristicId
-+      CharacteristicOperationType type
-+      integer code
-+      optional binary data
-+
-+  # Simulates the response from the descriptor with |descriptorId| for a
-+  # descriptor operation of |type|. The |code| value follows the Error
-+  # Codes from Bluetooth Core Specification Vol 3 Part F 3.4.1.1 Error Response.
-+  # The |data| is expected to exist when simulating a successful read operation
-+  # response.
-+  command simulateDescriptorOperationResponse
-+    parameters
-+      string descriptorId
-+      DescriptorOperationType type
-+      integer code
-+      optional binary data
-+
-+  # Adds a service with |serviceUuid| to the peripheral with |address|.
-+  command addService
-+    parameters
-+      string address
-+      string serviceUuid
-+    returns
-+      # An identifier that uniquely represents this service.
-+      string serviceId
-+
-+  # Removes the service respresented by |serviceId| from the simulated central.
-+  command removeService
-+    parameters
-+      string serviceId
-+
-+  # Adds a characteristic with |characteristicUuid| and |properties| to the
-+  # service represented by |serviceId|.
-+  command addCharacteristic
-+    parameters
-+      string serviceId
-+      string characteristicUuid
-+      CharacteristicProperties properties
-+    returns
-+      # An identifier that uniquely represents this characteristic.
-+      string characteristicId
-+
-+  # Removes the characteristic respresented by |characteristicId| from the
-+  # simulated central.
-+  command removeCharacteristic
-+    parameters
-+      string characteristicId
-+
-+  # Adds a descriptor with |descriptorUuid| to the characteristic respresented
-+  # by |characteristicId|.
-+  command addDescriptor
-+    parameters
-+      string characteristicId
-+      string descriptorUuid
-+    returns
-+      # An identifier that uniquely represents this descriptor.
-+      string descriptorId
-+
-+  # Removes the descriptor with |descriptorId| from the simulated central.
-+  command removeDescriptor
-+    parameters
-+      string descriptorId
-+
-+  # Simulates a GATT disconnection from the peripheral with |address|.
-+  command simulateGATTDisconnection
-+    parameters
-+      string address
-+
-+  # Event for when a GATT operation of |type| to the peripheral with |address|
-+  # happened.
-+  event gattOperationReceived
-+    parameters
-+      string address
-+      GATTOperationType type
-+
-+  # Event for when a characteristic operation of |type| to the characteristic
-+  # respresented by |characteristicId| happened. |data| and |writeType| is
-+  # expected to exist when |type| is write.
-+  event characteristicOperationReceived
-+    parameters
-+      string characteristicId
-+      CharacteristicOperationType type
-+      optional binary data
-+      optional CharacteristicWriteType writeType
-+
-+  # Event for when a descriptor operation of |type| to the descriptor
-+  # respresented by |descriptorId| happened. |data| is expected to exist when
-+  # |type| is write.
-+  event descriptorOperationReceived
-+    parameters
-+      string descriptorId
-+      DescriptorOperationType type
-+      optional binary data
-diff --git a/pdl/domains/Browser.pdl b/pdl/domains/Browser.pdl
-new file mode 100644
-index 00000000..3c980f50
---- /dev/null
-+++ b/pdl/domains/Browser.pdl
-@@ -0,0 +1,345 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# The Browser domain defines methods and events for browser managing.
-+domain Browser
-+  experimental type BrowserContextID extends string
-+  experimental type WindowID extends integer
-+
-+  # The state of the browser window.
-+  experimental type WindowState extends string
-+    enum
-+      normal
-+      minimized
-+      maximized
-+      fullscreen
-+
-+  # Browser window bounds information
-+  experimental type Bounds extends object
-+    properties
-+      # The offset from the left edge of the screen to the window in pixels.
-+      optional integer left
-+      # The offset from the top edge of the screen to the window in pixels.
-+      optional integer top
-+      # The window width in pixels.
-+      optional integer width
-+      # The window height in pixels.
-+      optional integer height
-+      # The window state. Default to normal.
-+      optional WindowState windowState
-+
-+  experimental type PermissionType extends string
-+    enum
-+      ar
-+      audioCapture
-+      automaticFullscreen
-+      backgroundFetch
-+      backgroundSync
-+      cameraPanTiltZoom
-+      capturedSurfaceControl
-+      clipboardReadWrite
-+      clipboardSanitizedWrite
-+      displayCapture
-+      durableStorage
-+      geolocation
-+      handTracking
-+      idleDetection
-+      keyboardLock
-+      localFonts
-+      localNetworkAccess
-+      midi
-+      midiSysex
-+      nfc
-+      notifications
-+      paymentHandler
-+      periodicBackgroundSync
-+      pointerLock
-+      protectedMediaIdentifier
-+      sensors
-+      smartCard
-+      speakerSelection
-+      storageAccess
-+      topLevelStorageAccess
-+      videoCapture
-+      vr
-+      wakeLockScreen
-+      wakeLockSystem
-+      webAppInstallation
-+      webPrinting
-+      windowManagement
-+
-+  experimental type PermissionSetting extends string
-+    enum
-+      granted
-+      denied
-+      prompt
-+
-+  # Definition of PermissionDescriptor defined in the Permissions API:
-+  # https://w3c.github.io/permissions/#dom-permissiondescriptor.
-+  experimental type PermissionDescriptor extends object
-+    properties
-+      # Name of permission.
-+      # See https://cs.chromium.org/chromium/src/third_party/blink/renderer/modules/permissions/permission_descriptor.idl for valid permission names.
-+      string name
-+      # For "midi" permission, may also specify sysex control.
-+      optional boolean sysex
-+      # For "push" permission, may specify userVisibleOnly.
-+      # Note that userVisibleOnly = true is the only currently supported type.
-+      optional boolean userVisibleOnly
-+      # For "clipboard" permission, may specify allowWithoutSanitization.
-+      optional boolean allowWithoutSanitization
-+      # For "fullscreen" permission, must specify allowWithoutGesture:true.
-+      optional boolean allowWithoutGesture
-+      # For "camera" permission, may specify panTiltZoom.
-+      optional boolean panTiltZoom
-+
-+  # Browser command ids used by executeBrowserCommand.
-+  experimental type BrowserCommandId extends string
-+    enum
-+      openTabSearch
-+      closeTabSearch
-+      openGlic
-+
-+  # Set permission settings for given origin.
-+  experimental command setPermission
-+    parameters
-+      # Descriptor of permission to override.
-+      PermissionDescriptor permission
-+      # Setting of the permission.
-+      PermissionSetting setting
-+      # Origin the permission applies to, all origins if not specified.
-+      optional string origin
-+      # Context to override. When omitted, default browser context is used.
-+      optional BrowserContextID browserContextId
-+
-+  # Grant specific permissions to the given origin and reject all others.
-+  experimental command grantPermissions
-+    parameters
-+      array of PermissionType permissions
-+      # Origin the permission applies to, all origins if not specified.
-+      optional string origin
-+      # BrowserContext to override permissions. When omitted, default browser context is used.
-+      optional BrowserContextID browserContextId
-+
-+  # Reset all permission management for all origins.
-+  command resetPermissions
-+    parameters
-+      # BrowserContext to reset permissions. When omitted, default browser context is used.
-+      optional BrowserContextID browserContextId
-+
-+  # Set the behavior when downloading a file.
-+  experimental command setDownloadBehavior
-+    parameters
-+      # Whether to allow all or deny all download requests, or use default Chrome behavior if
-+      # available (otherwise deny). |allowAndName| allows download and names files according to
-+      # their download guids.
-+      enum behavior
-+        deny
-+        allow
-+        allowAndName
-+        default
-+      # BrowserContext to set download behavior. When omitted, default browser context is used.
-+      optional BrowserContextID browserContextId
-+      # The default path to save downloaded files to. This is required if behavior is set to 'allow'
-+      # or 'allowAndName'.
-+      optional string downloadPath
-+      # Whether to emit download events (defaults to false).
-+      optional boolean eventsEnabled
-+
-+  # Cancel a download if in progress
-+  experimental command cancelDownload
-+    parameters
-+      # Global unique identifier of the download.
-+      string guid
-+      # BrowserContext to perform the action in. When omitted, default browser context is used.
-+      optional BrowserContextID browserContextId
-+
-+  # Fired when page is about to start a download.
-+  experimental event downloadWillBegin
-+    parameters
-+      # Id of the frame that caused the download to begin.
-+      Page.FrameId frameId
-+      # Global unique identifier of the download.
-+      string guid
-+      # URL of the resource being downloaded.
-+      string url
-+      # Suggested file name of the resource (the actual name of the file saved on disk may differ).
-+      string suggestedFilename
-+
-+  # Fired when download makes progress. Last call has |done| == true.
-+  experimental event downloadProgress
-+    parameters
-+      # Global unique identifier of the download.
-+      string guid
-+      # Total expected bytes to download.
-+      number totalBytes
-+      # Total bytes received.
-+      number receivedBytes
-+      # Download status.
-+      enum state
-+        inProgress
-+        completed
-+        canceled
-+      # If download is "completed", provides the path of the downloaded file.
-+      # Depending on the platform, it is not guaranteed to be set, nor the file
-+      # is guaranteed to exist.
-+      experimental optional string filePath
-+
-+  # Close browser gracefully.
-+  command close
-+
-+  # Crashes browser on the main thread.
-+  experimental command crash
-+
-+  # Crashes GPU process.
-+  experimental command crashGpuProcess
-+
-+  # Returns version information.
-+  command getVersion
-+    returns
-+      # Protocol version.
-+      string protocolVersion
-+      # Product name.
-+      string product
-+      # Product revision.
-+      string revision
-+      # User-Agent.
-+      string userAgent
-+      # V8 version.
-+      string jsVersion
-+
-+  # Returns the command line switches for the browser process if, and only if
-+  # --enable-automation is on the commandline.
-+  experimental command getBrowserCommandLine
-+    returns
-+      # Commandline parameters
-+      array of string arguments
-+
-+  # Chrome histogram bucket.
-+  experimental type Bucket extends object
-+    properties
-+      # Minimum value (inclusive).
-+      integer low
-+      # Maximum value (exclusive).
-+      integer high
-+      # Number of samples.
-+      integer count
-+
-+  # Chrome histogram.
-+  experimental type Histogram extends object
-+    properties
-+      # Name.
-+      string name
-+      # Sum of sample values.
-+      integer sum
-+      # Total number of samples.
-+      integer count
-+      # Buckets.
-+      array of Bucket buckets
-+
-+  # Get Chrome histograms.
-+  experimental command getHistograms
-+    parameters
-+      # Requested substring in name. Only histograms which have query as a
-+      # substring in their name are extracted. An empty or absent query returns
-+      # all histograms.
-+      optional string query
-+      # If true, retrieve delta since last delta call.
-+      optional boolean delta
-+
-+    returns
-+      # Histograms.
-+      array of Histogram histograms
-+
-+  # Get a Chrome histogram by name.
-+  experimental command getHistogram
-+    parameters
-+      # Requested histogram name.
-+      string name
-+      # If true, retrieve delta since last delta call.
-+      optional boolean delta
-+    returns
-+      # Histogram.
-+      Histogram histogram
-+
-+  # Get position and size of the browser window.
-+  experimental command getWindowBounds
-+    parameters
-+      # Browser window id.
-+      WindowID windowId
-+    returns
-+      # Bounds information of the window. When window state is 'minimized', the restored window
-+      # position and size are returned.
-+      Bounds bounds
-+
-+  # Get the browser window that contains the devtools target.
-+  experimental command getWindowForTarget
-+    parameters
-+      # Devtools agent host id. If called as a part of the session, associated targetId is used.
-+      optional Target.TargetID targetId
-+    returns
-+      # Browser window id.
-+      WindowID windowId
-+      # Bounds information of the window. When window state is 'minimized', the restored window
-+      # position and size are returned.
-+      Bounds bounds
-+
-+  # Set position and/or size of the browser window.
-+  experimental command setWindowBounds
-+    parameters
-+      # Browser window id.
-+      WindowID windowId
-+      # New window bounds. The 'minimized', 'maximized' and 'fullscreen' states cannot be combined
-+      # with 'left', 'top', 'width' or 'height'. Leaves unspecified fields unchanged.
-+      Bounds bounds
-+
-+  # Set size of the browser contents resizing browser window as necessary.
-+  experimental command setContentsSize
-+    parameters
-+      # Browser window id.
-+      WindowID windowId
-+      # The window contents width in DIP. Assumes current width if omitted.
-+      # Must be specified if 'height' is omitted.
-+      optional integer width
-+      # The window contents height in DIP. Assumes current height if omitted.
-+      # Must be specified if 'width' is omitted.
-+      optional integer height
-+
-+  # Set dock tile details, platform-specific.
-+  experimental command setDockTile
-+    parameters
-+      optional string badgeLabel
-+      # Png encoded image.
-+      optional binary image
-+
-+  # Invoke custom browser commands used by telemetry.
-+  experimental command executeBrowserCommand
-+    parameters
-+      BrowserCommandId commandId
-+
-+  # Allows a site to use privacy sandbox features that require enrollment
-+  # without the site actually being enrolled. Only supported on page targets.
-+  command addPrivacySandboxEnrollmentOverride
-+    parameters
-+      string url
-+
-+  experimental type PrivacySandboxAPI extends string
-+    enum
-+      BiddingAndAuctionServices
-+      TrustedKeyValue
-+
-+  # Configures encryption keys used with a given privacy sandbox API to talk
-+  # to a trusted coordinator.  Since this is intended for test automation only,
-+  # coordinatorOrigin must be a .test domain. No existing coordinator
-+  # configuration for the origin may exist.
-+  command addPrivacySandboxCoordinatorKeyConfig
-+    parameters
-+      PrivacySandboxAPI api
-+      string coordinatorOrigin
-+      string keyConfig
-+      # BrowserContext to perform the action in. When omitted, default browser
-+      # context is used.
-+      optional BrowserContextID browserContextId
-diff --git a/pdl/domains/CSS.pdl b/pdl/domains/CSS.pdl
-new file mode 100644
-index 00000000..e19aaed6
---- /dev/null
-+++ b/pdl/domains/CSS.pdl
-@@ -0,0 +1,996 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain exposes CSS read/write operations. All CSS objects (stylesheets, rules, and styles)
-+# have an associated `id` used in subsequent operations on the related object. Each object type has
-+# a specific `id` structure, and those are not interchangeable between objects of different kinds.
-+# CSS objects can be loaded using the `get*ForNode()` calls (which accept a DOM node id). A client
-+# can also keep track of stylesheets via the `styleSheetAdded`/`styleSheetRemoved` events and
-+# subsequently load the required stylesheet contents using the `getStyleSheet[Text]()` methods.
-+experimental domain CSS
-+  depends on DOM
-+  depends on Page
-+
-+  type StyleSheetId extends string
-+
-+  # Stylesheet type: "injected" for stylesheets injected via extension, "user-agent" for user-agent
-+  # stylesheets, "inspector" for stylesheets created by the inspector (i.e. those holding the "via
-+  # inspector" rules), "regular" for regular stylesheets.
-+  type StyleSheetOrigin extends string
-+    enum
-+      injected
-+      user-agent
-+      inspector
-+      regular
-+
-+  # CSS rule collection for a single pseudo style.
-+  type PseudoElementMatches extends object
-+    properties
-+      # Pseudo element type.
-+      DOM.PseudoType pseudoType
-+      # Pseudo element custom ident.
-+      optional string pseudoIdentifier
-+      # Matches of CSS rules applicable to the pseudo style.
-+      array of RuleMatch matches
-+
-+  # CSS style coming from animations with the name of the animation.
-+  type CSSAnimationStyle extends object
-+    properties
-+      # The name of the animation.
-+      optional string name
-+      # The style coming from the animation.
-+      CSSStyle style
-+
-+  # Inherited CSS rule collection from ancestor node.
-+  type InheritedStyleEntry extends object
-+    properties
-+      # The ancestor node's inline style, if any, in the style inheritance chain.
-+      optional CSSStyle inlineStyle
-+      # Matches of CSS rules matching the ancestor node in the style inheritance chain.
-+      array of RuleMatch matchedCSSRules
-+
-+  # Inherited CSS style collection for animated styles from ancestor node.
-+  type InheritedAnimatedStyleEntry extends object
-+    properties
-+      # Styles coming from the animations of the ancestor, if any, in the style inheritance chain.
-+      optional array of CSSAnimationStyle animationStyles
-+      # The style coming from the transitions of the ancestor, if any, in the style inheritance chain.
-+      optional CSSStyle transitionsStyle
-+
-+  # Inherited pseudo element matches from pseudos of an ancestor node.
-+  type InheritedPseudoElementMatches extends object
-+    properties
-+      # Matches of pseudo styles from the pseudos of an ancestor node.
-+      array of PseudoElementMatches pseudoElements
-+
-+  # Match data for a CSS rule.
-+  type RuleMatch extends object
-+    properties
-+      # CSS rule in the match.
-+      CSSRule rule
-+      # Matching selector indices in the rule's selectorList selectors (0-based).
-+      array of integer matchingSelectors
-+
-+  # Data for a simple selector (these are delimited by commas in a selector list).
-+  type Value extends object
-+    properties
-+      # Value text.
-+      string text
-+      # Value range in the underlying resource (if available).
-+      optional SourceRange range
-+      # Specificity of the selector.
-+      experimental optional Specificity specificity
-+
-+  # Specificity:
-+  # https://drafts.csswg.org/selectors/#specificity-rules
-+  experimental type Specificity extends object
-+    properties
-+      # The a component, which represents the number of ID selectors.
-+      integer a
-+      # The b component, which represents the number of class selectors, attributes selectors, and
-+      # pseudo-classes.
-+      integer b
-+      # The c component, which represents the number of type selectors and pseudo-elements.
-+      integer c
-+
-+  # Selector list data.
-+  type SelectorList extends object
-+    properties
-+      # Selectors in the list.
-+      array of Value selectors
-+      # Rule selector text.
-+      string text
-+
-+  # CSS stylesheet metainformation.
-+  type CSSStyleSheetHeader extends object
-+    properties
-+      # The stylesheet identifier.
-+      StyleSheetId styleSheetId
-+      # Owner frame identifier.
-+      Page.FrameId frameId
-+      # Stylesheet resource URL. Empty if this is a constructed stylesheet created using
-+      # new CSSStyleSheet() (but non-empty if this is a constructed stylesheet imported
-+      # as a CSS module script).
-+      string sourceURL
-+      # URL of source map associated with the stylesheet (if any).
-+      optional string sourceMapURL
-+      # Stylesheet origin.
-+      StyleSheetOrigin origin
-+      # Stylesheet title.
-+      string title
-+      # The backend id for the owner node of the stylesheet.
-+      optional DOM.BackendNodeId ownerNode
-+      # Denotes whether the stylesheet is disabled.
-+      boolean disabled
-+      # Whether the sourceURL field value comes from the sourceURL comment.
-+      optional boolean hasSourceURL
-+      # Whether this stylesheet is created for STYLE tag by parser. This flag is not set for
-+      # document.written STYLE tags.
-+      boolean isInline
-+      # Whether this stylesheet is mutable. Inline stylesheets become mutable
-+      # after they have been modified via CSSOM API.
-+      # `<link>` element's stylesheets become mutable only if DevTools modifies them.
-+      # Constructed stylesheets (new CSSStyleSheet()) are mutable immediately after creation.
-+      boolean isMutable
-+      # True if this stylesheet is created through new CSSStyleSheet() or imported as a
-+      # CSS module script.
-+      boolean isConstructed
-+      # Line offset of the stylesheet within the resource (zero based).
-+      number startLine
-+      # Column offset of the stylesheet within the resource (zero based).
-+      number startColumn
-+      # Size of the content (in characters).
-+      number length
-+      # Line offset of the end of the stylesheet within the resource (zero based).
-+      number endLine
-+      # Column offset of the end of the stylesheet within the resource (zero based).
-+      number endColumn
-+      # If the style sheet was loaded from a network resource, this indicates when the resource failed to load
-+      experimental optional boolean loadingFailed
-+
-+  # CSS rule representation.
-+  type CSSRule extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Rule selector data.
-+      SelectorList selectorList
-+      # Array of selectors from ancestor style rules, sorted by distance from the current rule.
-+      experimental optional array of string nestingSelectors
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # Associated style declaration.
-+      CSSStyle style
-+      # Media list array (for rules involving media queries). The array enumerates media queries
-+      # starting with the innermost one, going outwards.
-+      optional array of CSSMedia media
-+      # Container query list array (for rules involving container queries).
-+      # The array enumerates container queries starting with the innermost one, going outwards.
-+      experimental optional array of CSSContainerQuery containerQueries
-+      # @supports CSS at-rule array.
-+      # The array enumerates @supports at-rules starting with the innermost one, going outwards.
-+      experimental optional array of CSSSupports supports
-+      # Cascade layer array. Contains the layer hierarchy that this rule belongs to starting
-+      # with the innermost layer and going outwards.
-+      experimental optional array of CSSLayer layers
-+      # @scope CSS at-rule array.
-+      # The array enumerates @scope at-rules starting with the innermost one, going outwards.
-+      experimental optional array of CSSScope scopes
-+      # The array keeps the types of ancestor CSSRules from the innermost going outwards.
-+      experimental optional array of CSSRuleType ruleTypes
-+      # @starting-style CSS at-rule array.
-+      # The array enumerates @starting-style at-rules starting with the innermost one, going outwards.
-+      experimental optional array of CSSStartingStyle startingStyles
-+
-+  # Enum indicating the type of a CSS rule, used to represent the order of a style rule's ancestors.
-+  # This list only contains rule types that are collected during the ancestor rule collection.
-+  experimental type CSSRuleType extends string
-+    enum
-+      MediaRule
-+      SupportsRule
-+      ContainerRule
-+      LayerRule
-+      ScopeRule
-+      StyleRule
-+      StartingStyleRule
-+
-+  # CSS coverage information.
-+  type RuleUsage extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      StyleSheetId styleSheetId
-+      # Offset of the start of the rule (including selector) from the beginning of the stylesheet.
-+      number startOffset
-+      # Offset of the end of the rule body from the beginning of the stylesheet.
-+      number endOffset
-+      # Indicates whether the rule was actually used by some element in the page.
-+      boolean used
-+
-+  # Text range within a resource. All numbers are zero-based.
-+  type SourceRange extends object
-+    properties
-+      # Start line of range.
-+      integer startLine
-+      # Start column of range (inclusive).
-+      integer startColumn
-+      # End line of range
-+      integer endLine
-+      # End column of range (exclusive).
-+      integer endColumn
-+
-+  type ShorthandEntry extends object
-+    properties
-+      # Shorthand name.
-+      string name
-+      # Shorthand value.
-+      string value
-+      # Whether the property has "!important" annotation (implies `false` if absent).
-+      optional boolean important
-+
-+  type CSSComputedStyleProperty extends object
-+    properties
-+      # Computed style property name.
-+      string name
-+      # Computed style property value.
-+      string value
-+
-+  # CSS style representation.
-+  type CSSStyle extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # CSS properties in the style.
-+      array of CSSProperty cssProperties
-+      # Computed values for all shorthands found in the style.
-+      array of ShorthandEntry shorthandEntries
-+      # Style declaration text (if available).
-+      optional string cssText
-+      # Style declaration range in the enclosing stylesheet (if available).
-+      optional SourceRange range
-+
-+  # CSS property declaration data.
-+  type CSSProperty extends object
-+    properties
-+      # The property name.
-+      string name
-+      # The property value.
-+      string value
-+      # Whether the property has "!important" annotation (implies `false` if absent).
-+      optional boolean important
-+      # Whether the property is implicit (implies `false` if absent).
-+      optional boolean implicit
-+      # The full property text as specified in the style.
-+      optional string text
-+      # Whether the property is understood by the browser (implies `true` if absent).
-+      optional boolean parsedOk
-+      # Whether the property is disabled by the user (present for source-based properties only).
-+      optional boolean disabled
-+      # The entire property range in the enclosing style declaration (if available).
-+      optional SourceRange range
-+      # Parsed longhand components of this property if it is a shorthand.
-+      # This field will be empty if the given property is not a shorthand.
-+      experimental optional array of CSSProperty longhandProperties
-+
-+  # CSS media rule descriptor.
-+  type CSSMedia extends object
-+    properties
-+      # Media query text.
-+      string text
-+      # Source of the media query: "mediaRule" if specified by a @media rule, "importRule" if
-+      # specified by an @import rule, "linkedSheet" if specified by a "media" attribute in a linked
-+      # stylesheet's LINK tag, "inlineSheet" if specified by a "media" attribute in an inline
-+      # stylesheet's STYLE tag.
-+      enum source
-+        mediaRule
-+        importRule
-+        linkedSheet
-+        inlineSheet
-+      # URL of the document containing the media query description.
-+      optional string sourceURL
-+      # The associated rule (@media or @import) header range in the enclosing stylesheet (if
-+      # available).
-+      optional SourceRange range
-+      # Identifier of the stylesheet containing this object (if exists).
-+      optional StyleSheetId styleSheetId
-+      # Array of media queries.
-+      optional array of MediaQuery mediaList
-+
-+  # Media query descriptor.
-+  type MediaQuery extends object
-+    properties
-+      # Array of media query expressions.
-+      array of MediaQueryExpression expressions
-+      # Whether the media query condition is satisfied.
-+      boolean active
-+
-+  # Media query expression descriptor.
-+  type MediaQueryExpression extends object
-+    properties
-+      # Media query expression value.
-+      number value
-+      # Media query expression units.
-+      string unit
-+      # Media query expression feature.
-+      string feature
-+      # The associated range of the value text in the enclosing stylesheet (if available).
-+      optional SourceRange valueRange
-+      # Computed length of media query expression (if applicable).
-+      optional number computedLength
-+
-+  # CSS container query rule descriptor.
-+  experimental type CSSContainerQuery extends object
-+    properties
-+      # Container query text.
-+      string text
-+      # The associated rule header range in the enclosing stylesheet (if
-+      # available).
-+      optional SourceRange range
-+      # Identifier of the stylesheet containing this object (if exists).
-+      optional StyleSheetId styleSheetId
-+      # Optional name for the container.
-+      optional string name
-+      # Optional physical axes queried for the container.
-+      optional DOM.PhysicalAxes physicalAxes
-+      # Optional logical axes queried for the container.
-+      optional DOM.LogicalAxes logicalAxes
-+      # true if the query contains scroll-state() queries.
-+      optional boolean queriesScrollState
-+      # true if the query contains anchored() queries.
-+      optional boolean queriesAnchored
-+
-+  # CSS Supports at-rule descriptor.
-+  experimental type CSSSupports extends object
-+    properties
-+      # Supports rule text.
-+      string text
-+      # Whether the supports condition is satisfied.
-+      boolean active
-+      # The associated rule header range in the enclosing stylesheet (if
-+      # available).
-+      optional SourceRange range
-+      # Identifier of the stylesheet containing this object (if exists).
-+      optional StyleSheetId styleSheetId
-+
-+  # CSS Scope at-rule descriptor.
-+  experimental type CSSScope extends object
-+    properties
-+      # Scope rule text.
-+      string text
-+      # The associated rule header range in the enclosing stylesheet (if
-+      # available).
-+      optional SourceRange range
-+      # Identifier of the stylesheet containing this object (if exists).
-+      optional StyleSheetId styleSheetId
-+
-+  # CSS Layer at-rule descriptor.
-+  experimental type CSSLayer extends object
-+    properties
-+      # Layer name.
-+      string text
-+      # The associated rule header range in the enclosing stylesheet (if
-+      # available).
-+      optional SourceRange range
-+      # Identifier of the stylesheet containing this object (if exists).
-+      optional StyleSheetId styleSheetId
-+
-+  # CSS Starting Style at-rule descriptor.
-+  experimental type CSSStartingStyle extends object
-+    properties
-+      # The associated rule header range in the enclosing stylesheet (if
-+      # available).
-+      optional SourceRange range
-+      # Identifier of the stylesheet containing this object (if exists).
-+      optional StyleSheetId styleSheetId
-+
-+  # CSS Layer data.
-+  experimental type CSSLayerData extends object
-+    properties
-+      # Layer name.
-+      string name
-+      # Direct sub-layers
-+      optional array of CSSLayerData subLayers
-+      # Layer order. The order determines the order of the layer in the cascade order.
-+      # A higher number has higher priority in the cascade order.
-+      number order
-+
-+  # Information about amount of glyphs that were rendered with given font.
-+  type PlatformFontUsage extends object
-+    properties
-+      # Font's family name reported by platform.
-+      string familyName
-+      # Font's PostScript name reported by platform.
-+      string postScriptName
-+      # Indicates if the font was downloaded or resolved locally.
-+      boolean isCustomFont
-+      # Amount of glyphs that were rendered with this font.
-+      number glyphCount
-+
-+  # Information about font variation axes for variable fonts
-+  type FontVariationAxis extends object
-+    properties
-+      # The font-variation-setting tag (a.k.a. "axis tag").
-+      string tag
-+      # Human-readable variation name in the default language (normally, "en").
-+      string name
-+      # The minimum value (inclusive) the font supports for this tag.
-+      number minValue
-+      # The maximum value (inclusive) the font supports for this tag.
-+      number maxValue
-+      # The default value.
-+      number defaultValue
-+
-+  # Properties of a web font: https://www.w3.org/TR/2008/REC-CSS2-20080411/fonts.html#font-descriptions
-+  # and additional information such as platformFontFamily and fontVariationAxes.
-+  type FontFace extends object
-+    properties
-+      # The font-family.
-+      string fontFamily
-+      # The font-style.
-+      string fontStyle
-+      # The font-variant.
-+      string fontVariant
-+      # The font-weight.
-+      string fontWeight
-+      # The font-stretch.
-+      string fontStretch
-+      # The font-display.
-+      string fontDisplay
-+      # The unicode-range.
-+      string unicodeRange
-+      # The src.
-+      string src
-+      # The resolved platform font family
-+      string platformFontFamily
-+      # Available variation settings (a.k.a. "axes").
-+      optional array of FontVariationAxis fontVariationAxes
-+
-+  # CSS try rule representation.
-+  type CSSTryRule extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # Associated style declaration.
-+      CSSStyle style
-+
-+  # CSS @position-try rule representation.
-+  type CSSPositionTryRule extends object
-+    properties
-+      # The prelude dashed-ident name
-+      Value name
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # Associated style declaration.
-+      CSSStyle style
-+      boolean active
-+
-+  # CSS keyframes rule representation.
-+  type CSSKeyframesRule extends object
-+    properties
-+      # Animation name.
-+      Value animationName
-+      # List of keyframes.
-+      array of CSSKeyframeRule keyframes
-+
-+  # Representation of a custom property registration through CSS.registerProperty
-+  type CSSPropertyRegistration extends object
-+    properties
-+      string propertyName
-+      optional Value initialValue
-+      boolean inherits
-+      string syntax
-+
-+
-+  # CSS font-palette-values rule representation.
-+  type CSSFontPaletteValuesRule extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # Associated font palette name.
-+      Value fontPaletteName
-+      # Associated style declaration.
-+      CSSStyle style
-+
-+  # CSS property at-rule representation.
-+  type CSSPropertyRule extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # Associated property name.
-+      Value propertyName
-+      # Associated style declaration.
-+      CSSStyle style
-+
-+  # CSS function argument representation.
-+  type CSSFunctionParameter extends object
-+    properties
-+      # The parameter name.
-+      string name
-+      # The parameter type.
-+      string type
-+
-+  # CSS function conditional block representation.
-+  type CSSFunctionConditionNode extends object
-+    properties
-+      # Media query for this conditional block. Only one type of condition should be set.
-+      optional CSSMedia media
-+      # Container query for this conditional block. Only one type of condition should be set.
-+      optional CSSContainerQuery containerQueries
-+      # @supports CSS at-rule condition. Only one type of condition should be set.
-+      optional CSSSupports supports
-+      # Block body.
-+      array of CSSFunctionNode children
-+      # The condition text.
-+      string conditionText
-+
-+  # Section of the body of a CSS function rule.
-+  type CSSFunctionNode extends object
-+    properties
-+      # A conditional block. If set, style should not be set.
-+      optional CSSFunctionConditionNode condition
-+      # Values set by this node. If set, condition should not be set.
-+      optional CSSStyle style
-+
-+  # CSS function at-rule representation.
-+  type CSSFunctionRule extends object
-+    properties
-+      # Name of the function.
-+      Value name
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # List of parameters.
-+      array of CSSFunctionParameter parameters
-+      # Function body.
-+      array of CSSFunctionNode children
-+
-+  # CSS keyframe rule representation.
-+  type CSSKeyframeRule extends object
-+    properties
-+      # The css style sheet identifier (absent for user agent stylesheet and user-specified
-+      # stylesheet rules) this rule came from.
-+      optional StyleSheetId styleSheetId
-+      # Parent stylesheet's origin.
-+      StyleSheetOrigin origin
-+      # Associated key text.
-+      Value keyText
-+      # Associated style declaration.
-+      CSSStyle style
-+
-+  # A descriptor of operation to mutate style declaration text.
-+  type StyleDeclarationEdit extends object
-+    properties
-+      # The css style sheet identifier.
-+      StyleSheetId styleSheetId
-+      # The range of the style text in the enclosing stylesheet.
-+      SourceRange range
-+      # New style text.
-+      string text
-+
-+  # Inserts a new rule with the given `ruleText` in a stylesheet with given `styleSheetId`, at the
-+  # position specified by `location`.
-+  command addRule
-+    parameters
-+      # The css style sheet identifier where a new rule should be inserted.
-+      StyleSheetId styleSheetId
-+      # The text of a new rule.
-+      string ruleText
-+      # Text position of a new rule in the target style sheet.
-+      SourceRange location
-+      # NodeId for the DOM node in whose context custom property declarations for registered properties should be
-+      # validated. If omitted, declarations in the new rule text can only be validated statically, which may produce
-+      # incorrect results if the declaration contains a var() for example.
-+      experimental optional DOM.NodeId nodeForPropertySyntaxValidation
-+    returns
-+      # The newly created rule.
-+      CSSRule rule
-+
-+  # Returns all class names from specified stylesheet.
-+  command collectClassNames
-+    parameters
-+      StyleSheetId styleSheetId
-+    returns
-+      # Class name list.
-+      array of string classNames
-+
-+  # Creates a new special "via-inspector" stylesheet in the frame with given `frameId`.
-+  command createStyleSheet
-+    parameters
-+      # Identifier of the frame where "via-inspector" stylesheet should be created.
-+      Page.FrameId frameId
-+      # If true, creates a new stylesheet for every call. If false,
-+      # returns a stylesheet previously created by a call with force=false
-+      # for the frame's document if it exists or creates a new stylesheet
-+      # (default: false).
-+      optional boolean force
-+    returns
-+      # Identifier of the created "via-inspector" stylesheet.
-+      StyleSheetId styleSheetId
-+
-+  # Disables the CSS agent for the given page.
-+  command disable
-+
-+  # Enables the CSS agent for the given page. Clients should not assume that the CSS agent has been
-+  # enabled until the result of this command is received.
-+  command enable
-+
-+  # Ensures that the given node will have specified pseudo-classes whenever its style is computed by
-+  # the browser.
-+  command forcePseudoState
-+    parameters
-+      # The element id for which to force the pseudo state.
-+      DOM.NodeId nodeId
-+      # Element pseudo classes to force when computing the element's style.
-+      array of string forcedPseudoClasses
-+
-+  # Ensures that the given node is in its starting-style state.
-+  command forceStartingStyle
-+    parameters
-+      # The element id for which to force the starting-style state.
-+      DOM.NodeId nodeId
-+      # Boolean indicating if this is on or off.
-+      boolean forced
-+
-+  command getBackgroundColors
-+    parameters
-+      # Id of the node to get background colors for.
-+      DOM.NodeId nodeId
-+    returns
-+      # The range of background colors behind this element, if it contains any visible text. If no
-+      # visible text is present, this will be undefined. In the case of a flat background color,
-+      # this will consist of simply that color. In the case of a gradient, this will consist of each
-+      # of the color stops. For anything more complicated, this will be an empty array. Images will
-+      # be ignored (as if the image had failed to load).
-+      optional array of string backgroundColors
-+      # The computed font size for this node, as a CSS computed value string (e.g. '12px').
-+      optional string computedFontSize
-+      # The computed font weight for this node, as a CSS computed value string (e.g. 'normal' or
-+      # '100').
-+      optional string computedFontWeight
-+
-+  # Returns the computed style for a DOM node identified by `nodeId`.
-+  command getComputedStyleForNode
-+    parameters
-+      DOM.NodeId nodeId
-+    returns
-+      # Computed style for the specified DOM node.
-+      array of CSSComputedStyleProperty computedStyle
-+
-+  # Resolve the specified values in the context of the provided element.
-+  # For example, a value of '1em' is evaluated according to the computed
-+  # 'font-size' of the element and a value 'calc(1px + 2px)' will be
-+  # resolved to '3px'.
-+  # If the `propertyName` was specified the `values` are resolved as if
-+  # they were property's declaration. If a value cannot be parsed according
-+  # to the provided property syntax, the value is parsed using combined
-+  # syntax as if null `propertyName` was provided. If the value cannot be
-+  # resolved even then, return the provided value without any changes.
-+  experimental command resolveValues
-+    parameters
-+      # Cascade-dependent keywords (revert/revert-layer) do not work.
-+      array of string values
-+      # Id of the node in whose context the expression is evaluated
-+      DOM.NodeId nodeId
-+      # Only longhands and custom property names are accepted.
-+      optional string propertyName
-+      # Pseudo element type, only works for pseudo elements that generate
-+      # elements in the tree, such as ::before and ::after.
-+      optional DOM.PseudoType pseudoType
-+      # Pseudo element custom ident.
-+      optional string pseudoIdentifier
-+    returns
-+      array of string results
-+
-+  experimental command getLonghandProperties
-+    parameters
-+      string shorthandName
-+      string value
-+    returns
-+      array of CSSProperty longhandProperties
-+
-+  # Returns the styles defined inline (explicitly in the "style" attribute and implicitly, using DOM
-+  # attributes) for a DOM node identified by `nodeId`.
-+  command getInlineStylesForNode
-+    parameters
-+      DOM.NodeId nodeId
-+    returns
-+      # Inline style for the specified DOM node.
-+      optional CSSStyle inlineStyle
-+      # Attribute-defined element style (e.g. resulting from "width=20 height=100%").
-+      optional CSSStyle attributesStyle
-+
-+  # Returns the styles coming from animations & transitions
-+  # including the animation & transition styles coming from inheritance chain.
-+  experimental command getAnimatedStylesForNode
-+    parameters
-+      DOM.NodeId nodeId
-+    returns
-+      # Styles coming from animations.
-+      optional array of CSSAnimationStyle animationStyles
-+      # Style coming from transitions.
-+      optional CSSStyle transitionsStyle
-+      # Inherited style entries for animationsStyle and transitionsStyle from
-+      # the inheritance chain of the element.
-+      optional array of InheritedAnimatedStyleEntry inherited
-+
-+  # Returns requested styles for a DOM node identified by `nodeId`.
-+  command getMatchedStylesForNode
-+    parameters
-+      DOM.NodeId nodeId
-+    returns
-+      # Inline style for the specified DOM node.
-+      optional CSSStyle inlineStyle
-+      # Attribute-defined element style (e.g. resulting from "width=20 height=100%").
-+      optional CSSStyle attributesStyle
-+      # CSS rules matching this node, from all applicable stylesheets.
-+      optional array of RuleMatch matchedCSSRules
-+      # Pseudo style matches for this node.
-+      optional array of PseudoElementMatches pseudoElements
-+      # A chain of inherited styles (from the immediate node parent up to the DOM tree root).
-+      optional array of InheritedStyleEntry inherited
-+      # A chain of inherited pseudo element styles (from the immediate node parent up to the DOM tree root).
-+      optional array of InheritedPseudoElementMatches inheritedPseudoElements
-+      # A list of CSS keyframed animations matching this node.
-+      optional array of CSSKeyframesRule cssKeyframesRules
-+      # A list of CSS @position-try rules matching this node, based on the position-try-fallbacks property.
-+      optional array of CSSPositionTryRule cssPositionTryRules
-+      # Index of the active fallback in the applied position-try-fallback property,
-+      # will not be set if there is no active position-try fallback.
-+      optional integer activePositionFallbackIndex
-+      # A list of CSS at-property rules matching this node.
-+      optional array of CSSPropertyRule cssPropertyRules
-+      # A list of CSS property registrations matching this node.
-+      optional array of CSSPropertyRegistration cssPropertyRegistrations
-+      # A font-palette-values rule matching this node.
-+      optional CSSFontPaletteValuesRule cssFontPaletteValuesRule
-+      # Id of the first parent element that does not have display: contents.
-+      experimental optional DOM.NodeId parentLayoutNodeId
-+      # A list of CSS at-function rules referenced by styles of this node.
-+      experimental optional array of CSSFunctionRule cssFunctionRules
-+
-+  # Returns the values of the default UA-defined environment variables used in env()
-+  experimental command getEnvironmentVariables
-+    returns
-+      object environmentVariables
-+
-+  # Returns all media queries parsed by the rendering engine.
-+  command getMediaQueries
-+    returns
-+      array of CSSMedia medias
-+
-+  # Requests information about platform fonts which we used to render child TextNodes in the given
-+  # node.
-+  command getPlatformFontsForNode
-+    parameters
-+      DOM.NodeId nodeId
-+    returns
-+      # Usage statistics for every employed platform font.
-+      array of PlatformFontUsage fonts
-+
-+  # Returns the current textual content for a stylesheet.
-+  command getStyleSheetText
-+    parameters
-+      StyleSheetId styleSheetId
-+    returns
-+      # The stylesheet text.
-+      string text
-+
-+  # Returns all layers parsed by the rendering engine for the tree scope of a node.
-+  # Given a DOM element identified by nodeId, getLayersForNode returns the root
-+  # layer for the nearest ancestor document or shadow root. The layer root contains
-+  # the full layer tree for the tree scope and their ordering.
-+  experimental command getLayersForNode
-+    parameters
-+      DOM.NodeId nodeId
-+    returns
-+      CSSLayerData rootLayer
-+
-+  # Given a CSS selector text and a style sheet ID, getLocationForSelector
-+  # returns an array of locations of the CSS selector in the style sheet.
-+  experimental command getLocationForSelector
-+    parameters
-+      StyleSheetId styleSheetId
-+      string selectorText
-+    returns
-+      array of SourceRange ranges
-+
-+  # Starts tracking the given node for the computed style updates
-+  # and whenever the computed style is updated for node, it queues
-+  # a `computedStyleUpdated` event with throttling.
-+  # There can only be 1 node tracked for computed style updates
-+  # so passing a new node id removes tracking from the previous node.
-+  # Pass `undefined` to disable tracking.
-+  experimental command trackComputedStyleUpdatesForNode
-+    parameters
-+      optional DOM.NodeId nodeId
-+
-+  # Starts tracking the given computed styles for updates. The specified array of properties
-+  # replaces the one previously specified. Pass empty array to disable tracking.
-+  # Use takeComputedStyleUpdates to retrieve the list of nodes that had properties modified.
-+  # The changes to computed style properties are only tracked for nodes pushed to the front-end
-+  # by the DOM agent. If no changes to the tracked properties occur after the node has been pushed
-+  # to the front-end, no updates will be issued for the node.
-+  experimental command trackComputedStyleUpdates
-+    parameters
-+      array of CSSComputedStyleProperty propertiesToTrack
-+
-+  # Polls the next batch of computed style updates.
-+  experimental command takeComputedStyleUpdates
-+    returns
-+      # The list of node Ids that have their tracked computed styles updated.
-+      array of DOM.NodeId nodeIds
-+
-+  # Find a rule with the given active property for the given node and set the new value for this
-+  # property
-+  command setEffectivePropertyValueForNode
-+    parameters
-+      # The element id for which to set property.
-+      DOM.NodeId nodeId
-+      string propertyName
-+      string value
-+
-+  # Modifies the property rule property name.
-+  command setPropertyRulePropertyName
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string propertyName
-+    returns
-+      # The resulting key text after modification.
-+      Value propertyName
-+
-+  # Modifies the keyframe rule key text.
-+  command setKeyframeKey
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string keyText
-+    returns
-+      # The resulting key text after modification.
-+      Value keyText
-+
-+  # Modifies the rule selector.
-+  command setMediaText
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string text
-+    returns
-+      # The resulting CSS media rule after modification.
-+      CSSMedia media
-+
-+  # Modifies the expression of a container query.
-+  experimental command setContainerQueryText
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string text
-+    returns
-+      # The resulting CSS container query rule after modification.
-+      CSSContainerQuery containerQuery
-+
-+  # Modifies the expression of a supports at-rule.
-+  experimental command setSupportsText
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string text
-+    returns
-+      # The resulting CSS Supports rule after modification.
-+      CSSSupports supports
-+
-+  # Modifies the expression of a scope at-rule.
-+  experimental command setScopeText
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string text
-+    returns
-+      # The resulting CSS Scope rule after modification.
-+      CSSScope scope
-+
-+  # Modifies the rule selector.
-+  command setRuleSelector
-+    parameters
-+      StyleSheetId styleSheetId
-+      SourceRange range
-+      string selector
-+    returns
-+      # The resulting selector list after modification.
-+      SelectorList selectorList
-+
-+  # Sets the new stylesheet text.
-+  command setStyleSheetText
-+    parameters
-+      StyleSheetId styleSheetId
-+      string text
-+    returns
-+      # URL of source map associated with script (if any).
-+      optional string sourceMapURL
-+
-+  # Applies specified style edits one after another in the given order.
-+  command setStyleTexts
-+    parameters
-+      array of StyleDeclarationEdit edits
-+      # NodeId for the DOM node in whose context custom property declarations for registered properties should be
-+      # validated. If omitted, declarations in the new rule text can only be validated statically, which may produce
-+      # incorrect results if the declaration contains a var() for example.
-+      experimental optional DOM.NodeId nodeForPropertySyntaxValidation
-+    returns
-+      # The resulting styles after modification.
-+      array of CSSStyle styles
-+
-+  # Enables the selector recording.
-+  command startRuleUsageTracking
-+
-+  # Stop tracking rule usage and return the list of rules that were used since last call to
-+  # `takeCoverageDelta` (or since start of coverage instrumentation).
-+  command stopRuleUsageTracking
-+    returns
-+      array of RuleUsage ruleUsage
-+
-+  # Obtain list of rules that became used since last call to this method (or since start of coverage
-+  # instrumentation).
-+  command takeCoverageDelta
-+    returns
-+      array of RuleUsage coverage
-+      # Monotonically increasing time, in seconds.
-+      number timestamp
-+
-+  # Enables/disables rendering of local CSS fonts (enabled by default).
-+  experimental command setLocalFontsEnabled
-+    parameters
-+      # Whether rendering of local fonts is enabled.
-+      boolean enabled
-+
-+  # Fires whenever a web font is updated.  A non-empty font parameter indicates a successfully loaded
-+  # web font.
-+  event fontsUpdated
-+    parameters
-+      # The web font that has loaded.
-+      optional FontFace font
-+
-+  # Fires whenever a MediaQuery result changes (for example, after a browser window has been
-+  # resized.) The current implementation considers only viewport-dependent media features.
-+  event mediaQueryResultChanged
-+
-+  # Fired whenever an active document stylesheet is added.
-+  event styleSheetAdded
-+    parameters
-+      # Added stylesheet metainfo.
-+      CSSStyleSheetHeader header
-+
-+  # Fired whenever a stylesheet is changed as a result of the client operation.
-+  event styleSheetChanged
-+    parameters
-+      StyleSheetId styleSheetId
-+
-+  # Fired whenever an active document stylesheet is removed.
-+  event styleSheetRemoved
-+    parameters
-+      # Identifier of the removed stylesheet.
-+      StyleSheetId styleSheetId
-+
-+  experimental event computedStyleUpdated
-+    parameters
-+      # The node id that has updated computed styles.
-+      DOM.NodeId nodeId
-diff --git a/pdl/domains/CacheStorage.pdl b/pdl/domains/CacheStorage.pdl
-new file mode 100644
-index 00000000..061253da
---- /dev/null
-+++ b/pdl/domains/CacheStorage.pdl
-@@ -0,0 +1,125 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain CacheStorage
-+  depends on Storage
-+
-+  # Unique identifier of the Cache object.
-+  type CacheId extends string
-+
-+  # type of HTTP response cached
-+  type CachedResponseType extends string
-+    enum
-+      basic
-+      cors
-+      default
-+      error
-+      opaqueResponse
-+      opaqueRedirect
-+
-+  # Data entry.
-+  type DataEntry extends object
-+    properties
-+      # Request URL.
-+      string requestURL
-+      # Request method.
-+      string requestMethod
-+      # Request headers
-+      array of Header requestHeaders
-+      # Number of seconds since epoch.
-+      number responseTime
-+      # HTTP response status code.
-+      integer responseStatus
-+      # HTTP response status text.
-+      string responseStatusText
-+      # HTTP response type
-+      CachedResponseType responseType
-+      # Response headers
-+      array of Header responseHeaders
-+
-+  # Cache identifier.
-+  type Cache extends object
-+    properties
-+      # An opaque unique id of the cache.
-+      CacheId cacheId
-+      # Security origin of the cache.
-+      string securityOrigin
-+      # Storage key of the cache.
-+      string storageKey
-+      # Storage bucket of the cache.
-+      optional Storage.StorageBucket storageBucket
-+      # The name of the cache.
-+      string cacheName
-+
-+  type Header extends object
-+    properties
-+      string name
-+      string value
-+
-+  # Cached response
-+  type CachedResponse extends object
-+    properties
-+      # Entry content, base64-encoded.
-+      binary body
-+
-+  # Deletes a cache.
-+  command deleteCache
-+    parameters
-+      # Id of cache for deletion.
-+      CacheId cacheId
-+
-+  # Deletes a cache entry.
-+  command deleteEntry
-+    parameters
-+      # Id of cache where the entry will be deleted.
-+      CacheId cacheId
-+      # URL spec of the request.
-+      string request
-+
-+  # Requests cache names.
-+  command requestCacheNames
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+    returns
-+      # Caches for the security origin.
-+      array of Cache caches
-+
-+  # Fetches cache entry.
-+  command requestCachedResponse
-+    parameters
-+      # Id of cache that contains the entry.
-+      CacheId cacheId
-+      # URL spec of the request.
-+      string requestURL
-+      # headers of the request.
-+      array of Header requestHeaders
-+    returns
-+      # Response read from the cache.
-+      CachedResponse response
-+
-+  # Requests data from cache.
-+  command requestEntries
-+    parameters
-+      # ID of cache to get entries from.
-+      CacheId cacheId
-+      # Number of records to skip.
-+      optional integer skipCount
-+      # Number of records to fetch.
-+      optional integer pageSize
-+      # If present, only return the entries containing this substring in the path
-+      optional string pathFilter
-+    returns
-+      # Array of object store data entries.
-+      array of DataEntry cacheDataEntries
-+      # Count of returned entries from this storage. If pathFilter is empty, it
-+      # is the count of all entries from this storage.
-+      number returnCount
-diff --git a/pdl/domains/Cast.pdl b/pdl/domains/Cast.pdl
-new file mode 100644
-index 00000000..23f27733
---- /dev/null
-+++ b/pdl/domains/Cast.pdl
-@@ -0,0 +1,62 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# A domain for interacting with Cast, Presentation API, and Remote Playback API
-+# functionalities.
-+experimental domain Cast
-+
-+  type Sink extends object
-+    properties
-+      string name
-+      string id
-+      # Text describing the current session. Present only if there is an active
-+      # session on the sink.
-+      optional string session
-+
-+  # Starts observing for sinks that can be used for tab mirroring, and if set,
-+  # sinks compatible with |presentationUrl| as well. When sinks are found, a
-+  # |sinksUpdated| event is fired.
-+  # Also starts observing for issue messages. When an issue is added or removed,
-+  # an |issueUpdated| event is fired.
-+  command enable
-+    parameters
-+      optional string presentationUrl
-+
-+  # Stops observing for sinks and issues.
-+  command disable
-+
-+  # Sets a sink to be used when the web page requests the browser to choose a
-+  # sink via Presentation API, Remote Playback API, or Cast SDK.
-+  command setSinkToUse
-+    parameters
-+      string sinkName
-+
-+  # Starts mirroring the desktop to the sink.
-+  command startDesktopMirroring
-+    parameters
-+      string sinkName
-+
-+  # Starts mirroring the tab to the sink.
-+  command startTabMirroring
-+    parameters
-+      string sinkName
-+
-+  # Stops the active Cast session on the sink.
-+  command stopCasting
-+    parameters
-+      string sinkName
-+
-+  # This is fired whenever the list of available sinks changes. A sink is a
-+  # device or a software surface that you can cast to.
-+  event sinksUpdated
-+    parameters
-+      array of Sink sinks
-+
-+  # This is fired whenever the outstanding issue/error message changes.
-+  # |issueMessage| is empty if there is no issue.
-+  event issueUpdated
-+    parameters
-+      string issueMessage
-diff --git a/pdl/domains/DOM.pdl b/pdl/domains/DOM.pdl
-new file mode 100644
-index 00000000..5a16c329
---- /dev/null
-+++ b/pdl/domains/DOM.pdl
-@@ -0,0 +1,932 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain exposes DOM read/write operations. Each DOM Node is represented with its mirror object
-+# that has an `id`. This `id` can be used to get additional information on the Node, resolve it into
-+# the JavaScript object wrapper, etc. It is important that client receives DOM events only for the
-+# nodes that are known to the client. Backend keeps track of the nodes that were sent to the client
-+# and never sends the same node twice. It is client's responsibility to collect information about
-+# the nodes that were sent to the client. Note that `iframe` owner elements will return
-+# corresponding document elements as their child nodes.
-+domain DOM
-+  depends on Runtime
-+
-+  # Unique DOM node identifier.
-+  type NodeId extends integer
-+
-+  # Unique DOM node identifier used to reference a node that may not have been pushed to the
-+  # front-end.
-+  type BackendNodeId extends integer
-+
-+  # Backend node with a friendly name.
-+  type BackendNode extends object
-+    properties
-+      # `Node`'s nodeType.
-+      integer nodeType
-+      # `Node`'s nodeName.
-+      string nodeName
-+      BackendNodeId backendNodeId
-+
-+  # Pseudo element type.
-+  type PseudoType extends string
-+    enum
-+      first-line
-+      first-letter
-+      checkmark
-+      before
-+      after
-+      picker-icon
-+      interest-hint
-+      marker
-+      backdrop
-+      column
-+      selection
-+      search-text
-+      target-text
-+      spelling-error
-+      grammar-error
-+      highlight
-+      first-line-inherited
-+      scroll-marker
-+      scroll-marker-group
-+      scroll-button
-+      scrollbar
-+      scrollbar-thumb
-+      scrollbar-button
-+      scrollbar-track
-+      scrollbar-track-piece
-+      scrollbar-corner
-+      resizer
-+      input-list-button
-+      view-transition
-+      view-transition-group
-+      view-transition-image-pair
-+      view-transition-group-children
-+      view-transition-old
-+      view-transition-new
-+      placeholder
-+      file-selector-button
-+      details-content
-+      picker
-+      permission-icon
-+
-+  # Shadow root type.
-+  type ShadowRootType extends string
-+    enum
-+      user-agent
-+      open
-+      closed
-+
-+  # Document compatibility mode.
-+  type CompatibilityMode extends string
-+    enum
-+      QuirksMode
-+      LimitedQuirksMode
-+      NoQuirksMode
-+
-+  # ContainerSelector physical axes
-+  type PhysicalAxes extends string
-+    enum
-+      Horizontal
-+      Vertical
-+      Both
-+
-+  # ContainerSelector logical axes
-+  type LogicalAxes extends string
-+    enum
-+      Inline
-+      Block
-+      Both
-+
-+  # Physical scroll orientation
-+  type ScrollOrientation extends string
-+    enum
-+      horizontal
-+      vertical
-+
-+  # DOM interaction is implemented in terms of mirror objects that represent the actual DOM nodes.
-+  # DOMNode is a base node mirror type.
-+  type Node extends object
-+    properties
-+      # Node identifier that is passed into the rest of the DOM messages as the `nodeId`. Backend
-+      # will only push node with given `id` once. It is aware of all requested nodes and will only
-+      # fire DOM events for nodes known to the client.
-+      NodeId nodeId
-+      # The id of the parent node if any.
-+      optional NodeId parentId
-+      # The BackendNodeId for this node.
-+      BackendNodeId backendNodeId
-+      # `Node`'s nodeType.
-+      integer nodeType
-+      # `Node`'s nodeName.
-+      string nodeName
-+      # `Node`'s localName.
-+      string localName
-+      # `Node`'s nodeValue.
-+      string nodeValue
-+      # Child count for `Container` nodes.
-+      optional integer childNodeCount
-+      # Child nodes of this node when requested with children.
-+      optional array of Node children
-+      # Attributes of the `Element` node in the form of flat array `[name1, value1, name2, value2]`.
-+      optional array of string attributes
-+      # Document URL that `Document` or `FrameOwner` node points to.
-+      optional string documentURL
-+      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
-+      optional string baseURL
-+      # `DocumentType`'s publicId.
-+      optional string publicId
-+      # `DocumentType`'s systemId.
-+      optional string systemId
-+      # `DocumentType`'s internalSubset.
-+      optional string internalSubset
-+      # `Document`'s XML version in case of XML documents.
-+      optional string xmlVersion
-+      # `Attr`'s name.
-+      optional string name
-+      # `Attr`'s value.
-+      optional string value
-+      # Pseudo element type for this node.
-+      optional PseudoType pseudoType
-+      # Pseudo element identifier for this node. Only present if there is a
-+      # valid pseudoType.
-+      optional string pseudoIdentifier
-+      # Shadow root type.
-+      optional ShadowRootType shadowRootType
-+      # Frame ID for frame owner elements.
-+      optional Page.FrameId frameId
-+      # Content document for frame owner elements.
-+      optional Node contentDocument
-+      # Shadow root list for given element host.
-+      optional array of Node shadowRoots
-+      # Content document fragment for template elements.
-+      optional Node templateContent
-+      # Pseudo elements associated with this node.
-+      optional array of Node pseudoElements
-+      # Deprecated, as the HTML Imports API has been removed (crbug.com/937746).
-+      # This property used to return the imported document for the HTMLImport links.
-+      # The property is always undefined now.
-+      deprecated optional Node importedDocument
-+      # Distributed nodes for given insertion point.
-+      optional array of BackendNode distributedNodes
-+      # Whether the node is SVG.
-+      optional boolean isSVG
-+      optional CompatibilityMode compatibilityMode
-+      optional BackendNode assignedSlot
-+      experimental optional boolean isScrollable
-+
-+  # A structure to hold the top-level node of a detached tree and an array of its retained descendants.
-+  type DetachedElementInfo extends object
-+    properties
-+      Node treeNode
-+      array of NodeId retainedNodeIds
-+
-+  # A structure holding an RGBA color.
-+  type RGBA extends object
-+    properties
-+      # The red component, in the [0-255] range.
-+      integer r
-+      # The green component, in the [0-255] range.
-+      integer g
-+      # The blue component, in the [0-255] range.
-+      integer b
-+      # The alpha component, in the [0-1] range (default: 1).
-+      optional number a
-+
-+  # An array of quad vertices, x immediately followed by y for each point, points clock-wise.
-+  type Quad extends array of number
-+
-+  # Box model.
-+  type BoxModel extends object
-+    properties
-+      # Content box
-+      Quad content
-+      # Padding box
-+      Quad padding
-+      # Border box
-+      Quad border
-+      # Margin box
-+      Quad margin
-+      # Node width
-+      integer width
-+      # Node height
-+      integer height
-+      # Shape outside coordinates
-+      optional ShapeOutsideInfo shapeOutside
-+
-+  # CSS Shape Outside details.
-+  type ShapeOutsideInfo extends object
-+    properties
-+      # Shape bounds
-+      Quad bounds
-+      # Shape coordinate details
-+      array of any shape
-+      # Margin shape bounds
-+      array of any marginShape
-+
-+  # Rectangle.
-+  type Rect extends object
-+    properties
-+      # X coordinate
-+      number x
-+      # Y coordinate
-+      number y
-+      # Rectangle width
-+      number width
-+      # Rectangle height
-+      number height
-+
-+  type CSSComputedStyleProperty extends object
-+    properties
-+      # Computed style property name.
-+      string name
-+      # Computed style property value.
-+      string value
-+
-+  # Collects class names for the node with given id and all of it's child nodes.
-+  experimental command collectClassNamesFromSubtree
-+    parameters
-+      # Id of the node to collect class names.
-+      NodeId nodeId
-+    returns
-+      # Class name list.
-+      array of string classNames
-+
-+  # Creates a deep copy of the specified node and places it into the target container before the
-+  # given anchor.
-+  experimental command copyTo
-+    parameters
-+      # Id of the node to copy.
-+      NodeId nodeId
-+      # Id of the element to drop the copy into.
-+      NodeId targetNodeId
-+      # Drop the copy before this node (if absent, the copy becomes the last child of
-+      # `targetNodeId`).
-+      optional NodeId insertBeforeNodeId
-+    returns
-+      # Id of the node clone.
-+      NodeId nodeId
-+
-+  # Describes node given its id, does not require domain to be enabled. Does not start tracking any
-+  # objects, can be used for automation.
-+  command describeNode
-+    parameters
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
-+      # entire subtree or provide an integer larger than 0.
-+      optional integer depth
-+      # Whether or not iframes and shadow roots should be traversed when returning the subtree
-+      # (default is false).
-+      optional boolean pierce
-+    returns
-+      # Node description.
-+      Node node
-+
-+  # Scrolls the specified rect of the given node into view if not already visible.
-+  # Note: exactly one between nodeId, backendNodeId and objectId should be passed
-+  # to identify the node.
-+  command scrollIntoViewIfNeeded
-+    parameters
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+      # The rect to be scrolled into view, relative to the node's border box, in CSS pixels.
-+      # When omitted, center of the node will be used, similar to Element.scrollIntoView.
-+      optional Rect rect
-+
-+  # Disables DOM agent for the given page.
-+  command disable
-+
-+  # Discards search results from the session with the given id. `getSearchResults` should no longer
-+  # be called for that search.
-+  experimental command discardSearchResults
-+    parameters
-+      # Unique search session identifier.
-+      string searchId
-+
-+  # Enables DOM agent for the given page.
-+  command enable
-+    parameters
-+      # Whether to include whitespaces in the children array of returned Nodes.
-+      experimental optional enum includeWhitespace
-+        # Strip whitespaces from child arrays (default).
-+        none
-+        # Return all children including block-level whitespace nodes.
-+        all
-+
-+  # Focuses the given element.
-+  command focus
-+    parameters
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+
-+  # Returns attributes for the specified node.
-+  command getAttributes
-+    parameters
-+      # Id of the node to retrieve attributes for.
-+      NodeId nodeId
-+    returns
-+      # An interleaved array of node attribute names and values.
-+      array of string attributes
-+
-+  # Returns boxes for the given node.
-+  command getBoxModel
-+    parameters
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+    returns
-+      # Box model for the node.
-+      BoxModel model
-+
-+  # Returns quads that describe node position on the page. This method
-+  # might return multiple quads for inline nodes.
-+  experimental command getContentQuads
-+    parameters
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+    returns
-+      # Quads that describe node layout relative to viewport.
-+      array of Quad quads
-+
-+  # Returns the root DOM node (and optionally the subtree) to the caller.
-+  # Implicitly enables the DOM domain events for the current target.
-+  command getDocument
-+    parameters
-+      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
-+      # entire subtree or provide an integer larger than 0.
-+      optional integer depth
-+      # Whether or not iframes and shadow roots should be traversed when returning the subtree
-+      # (default is false).
-+      optional boolean pierce
-+    returns
-+      # Resulting node.
-+      Node root
-+
-+  # Returns the root DOM node (and optionally the subtree) to the caller.
-+  # Deprecated, as it is not designed to work well with the rest of the DOM agent.
-+  # Use DOMSnapshot.captureSnapshot instead.
-+  deprecated command getFlattenedDocument
-+    parameters
-+      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
-+      # entire subtree or provide an integer larger than 0.
-+      optional integer depth
-+      # Whether or not iframes and shadow roots should be traversed when returning the subtree
-+      # (default is false).
-+      optional boolean pierce
-+    returns
-+      # Resulting node.
-+      array of Node nodes
-+
-+  # Finds nodes with a given computed style in a subtree.
-+  experimental command getNodesForSubtreeByStyle
-+    parameters
-+      # Node ID pointing to the root of a subtree.
-+      NodeId nodeId
-+      # The style to filter nodes by (includes nodes if any of properties matches).
-+      array of CSSComputedStyleProperty computedStyles
-+      # Whether or not iframes and shadow roots in the same target should be traversed when returning the
-+      # results (default is false).
-+      optional boolean pierce
-+    returns
-+      # Resulting nodes.
-+      array of NodeId nodeIds
-+
-+  # Returns node id at given location. Depending on whether DOM domain is enabled, nodeId is
-+  # either returned or not.
-+  command getNodeForLocation
-+    parameters
-+      # X coordinate.
-+      integer x
-+      # Y coordinate.
-+      integer y
-+      # False to skip to the nearest non-UA shadow root ancestor (default: false).
-+      optional boolean includeUserAgentShadowDOM
-+      # Whether to ignore pointer-events: none on elements and hit test them.
-+      optional boolean ignorePointerEventsNone
-+    returns
-+      # Resulting node.
-+      BackendNodeId backendNodeId
-+      # Frame this node belongs to.
-+      Page.FrameId frameId
-+      # Id of the node at given coordinates, only when enabled and requested document.
-+      optional NodeId nodeId
-+
-+  # Returns node's HTML markup.
-+  command getOuterHTML
-+    parameters
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+      # Include all shadow roots. Equals to false if not specified.
-+      experimental optional boolean includeShadowDOM
-+    returns
-+      # Outer HTML markup.
-+      string outerHTML
-+
-+  # Returns the id of the nearest ancestor that is a relayout boundary.
-+  experimental command getRelayoutBoundary
-+    parameters
-+      # Id of the node.
-+      NodeId nodeId
-+    returns
-+      # Relayout boundary node id for the given node.
-+      NodeId nodeId
-+
-+  # Returns search results from given `fromIndex` to given `toIndex` from the search with the given
-+  # identifier.
-+  experimental command getSearchResults
-+    parameters
-+      # Unique search session identifier.
-+      string searchId
-+      # Start index of the search result to be returned.
-+      integer fromIndex
-+      # End index of the search result to be returned.
-+      integer toIndex
-+    returns
-+      # Ids of the search result nodes.
-+      array of NodeId nodeIds
-+
-+  # Hides any highlight.
-+  command hideHighlight
-+    # Use 'Overlay.hideHighlight' instead
-+    redirect Overlay
-+
-+  # Highlights DOM node.
-+  command highlightNode
-+    # Use 'Overlay.highlightNode' instead
-+    redirect Overlay
-+
-+  # Highlights given rectangle.
-+  command highlightRect
-+    # Use 'Overlay.highlightRect' instead
-+    redirect Overlay
-+
-+  # Marks last undoable state.
-+  experimental command markUndoableState
-+
-+  # Moves node into the new container, places it before the given anchor.
-+  command moveTo
-+    parameters
-+      # Id of the node to move.
-+      NodeId nodeId
-+      # Id of the element to drop the moved node into.
-+      NodeId targetNodeId
-+      # Drop node before this one (if absent, the moved node becomes the last child of
-+      # `targetNodeId`).
-+      optional NodeId insertBeforeNodeId
-+    returns
-+      # New id of the moved node.
-+      NodeId nodeId
-+
-+  # Searches for a given string in the DOM tree. Use `getSearchResults` to access search results or
-+  # `cancelSearch` to end this search session.
-+  experimental command performSearch
-+    parameters
-+      # Plain text or query selector or XPath search query.
-+      string query
-+      # True to search in user agent shadow DOM.
-+      optional boolean includeUserAgentShadowDOM
-+    returns
-+      # Unique search session identifier.
-+      string searchId
-+      # Number of search results.
-+      integer resultCount
-+
-+  # Requests that the node is sent to the caller given its path. // FIXME, use XPath
-+  experimental command pushNodeByPathToFrontend
-+    parameters
-+      # Path to node in the proprietary format.
-+      string path
-+    returns
-+      # Id of the node for given path.
-+      NodeId nodeId
-+
-+  # Requests that a batch of nodes is sent to the caller given their backend node ids.
-+  experimental command pushNodesByBackendIdsToFrontend
-+    parameters
-+      # The array of backend node ids.
-+      array of BackendNodeId backendNodeIds
-+    returns
-+      # The array of ids of pushed nodes that correspond to the backend ids specified in
-+      # backendNodeIds.
-+      array of NodeId nodeIds
-+
-+  # Executes `querySelector` on a given node.
-+  command querySelector
-+    parameters
-+      # Id of the node to query upon.
-+      NodeId nodeId
-+      # Selector string.
-+      string selector
-+    returns
-+      # Query selector result.
-+      NodeId nodeId
-+
-+  # Executes `querySelectorAll` on a given node.
-+  command querySelectorAll
-+    parameters
-+      # Id of the node to query upon.
-+      NodeId nodeId
-+      # Selector string.
-+      string selector
-+    returns
-+      # Query selector result.
-+      array of NodeId nodeIds
-+
-+  # Returns NodeIds of current top layer elements.
-+  # Top layer is rendered closest to the user within a viewport, therefore its elements always
-+  # appear on top of all other content.
-+  experimental command getTopLayerElements
-+    returns
-+      # NodeIds of top layer elements
-+      array of NodeId nodeIds
-+
-+  # Returns the NodeId of the matched element according to certain relations.
-+  experimental command getElementByRelation
-+    parameters
-+      # Id of the node from which to query the relation.
-+      NodeId nodeId
-+      # Type of relation to get.
-+      enum relation
-+        # Get the popover target for a given element. In this case, this given
-+        # element can only be an HTMLFormControlElement (<input>, <button>).
-+        PopoverTarget
-+        # Get the interestfor target (the attribute used to be named
-+        # `interesttarget`) for for a given element.
-+        InterestTarget
-+        # Get the commandfor target for a given element. In this case, this given
-+        # element can only be an HTMLButtonElement.
-+        CommandFor
-+    returns
-+      # NodeId of the element matching the queried relation.
-+      NodeId nodeId
-+
-+  # Re-does the last undone action.
-+  experimental command redo
-+
-+  # Removes attribute with given name from an element with given id.
-+  command removeAttribute
-+    parameters
-+      # Id of the element to remove attribute from.
-+      NodeId nodeId
-+      # Name of the attribute to remove.
-+      string name
-+
-+  # Removes node with given id.
-+  command removeNode
-+    parameters
-+      # Id of the node to remove.
-+      NodeId nodeId
-+
-+  # Requests that children of the node with given id are returned to the caller in form of
-+  # `setChildNodes` events where not only immediate children are retrieved, but all children down to
-+  # the specified depth.
-+  command requestChildNodes
-+    parameters
-+      # Id of the node to get children for.
-+      NodeId nodeId
-+      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
-+      # entire subtree or provide an integer larger than 0.
-+      optional integer depth
-+      # Whether or not iframes and shadow roots should be traversed when returning the sub-tree
-+      # (default is false).
-+      optional boolean pierce
-+
-+  # Requests that the node is sent to the caller given the JavaScript node object reference. All
-+  # nodes that form the path from the node to the root are also sent to the client as a series of
-+  # `setChildNodes` notifications.
-+  command requestNode
-+    parameters
-+      # JavaScript object id to convert into node.
-+      Runtime.RemoteObjectId objectId
-+    returns
-+      # Node id for given object.
-+      NodeId nodeId
-+
-+  # Resolves the JavaScript node object for a given NodeId or BackendNodeId.
-+  command resolveNode
-+    parameters
-+      # Id of the node to resolve.
-+      optional NodeId nodeId
-+      # Backend identifier of the node to resolve.
-+      optional DOM.BackendNodeId backendNodeId
-+      # Symbolic group name that can be used to release multiple objects.
-+      optional string objectGroup
-+      # Execution context in which to resolve the node.
-+      optional Runtime.ExecutionContextId executionContextId
-+    returns
-+      # JavaScript object wrapper for given node.
-+      Runtime.RemoteObject object
-+
-+  # Sets attribute for an element with given id.
-+  command setAttributeValue
-+    parameters
-+      # Id of the element to set attribute for.
-+      NodeId nodeId
-+      # Attribute name.
-+      string name
-+      # Attribute value.
-+      string value
-+
-+  # Sets attributes on element with given id. This method is useful when user edits some existing
-+  # attribute value and types in several attribute name/value pairs.
-+  command setAttributesAsText
-+    parameters
-+      # Id of the element to set attributes for.
-+      NodeId nodeId
-+      # Text with a number of attributes. Will parse this text using HTML parser.
-+      string text
-+      # Attribute name to replace with new attributes derived from text in case text parsed
-+      # successfully.
-+      optional string name
-+
-+  # Sets files for the given file input element.
-+  command setFileInputFiles
-+    parameters
-+      # Array of file paths to set.
-+      array of string files
-+      # Identifier of the node.
-+      optional NodeId nodeId
-+      # Identifier of the backend node.
-+      optional BackendNodeId backendNodeId
-+      # JavaScript object id of the node wrapper.
-+      optional Runtime.RemoteObjectId objectId
-+
-+  # Sets if stack traces should be captured for Nodes. See `Node.getNodeStackTraces`. Default is disabled.
-+  experimental command setNodeStackTracesEnabled
-+    parameters
-+      # Enable or disable.
-+      boolean enable
-+
-+  # Gets stack traces associated with a Node. As of now, only provides stack trace for Node creation.
-+  experimental command getNodeStackTraces
-+    parameters
-+      # Id of the node to get stack traces for.
-+      NodeId nodeId
-+    returns
-+      # Creation stack trace, if available.
-+      optional Runtime.StackTrace creation
-+
-+  # Returns file information for the given
-+  # File wrapper.
-+  experimental command getFileInfo
-+    parameters
-+      # JavaScript object id of the node wrapper.
-+      Runtime.RemoteObjectId objectId
-+    returns
-+      string path
-+
-+  # Returns list of detached nodes
-+  experimental command getDetachedDomNodes
-+    returns
-+      # The list of detached nodes
-+      array of DetachedElementInfo detachedNodes
-+
-+  # Enables console to refer to the node with given id via $x (see Command Line API for more details
-+  # $x functions).
-+  experimental command setInspectedNode
-+    parameters
-+      # DOM node id to be accessible by means of $x command line API.
-+      NodeId nodeId
-+
-+  # Sets node name for a node with given id.
-+  command setNodeName
-+    parameters
-+      # Id of the node to set name for.
-+      NodeId nodeId
-+      # New node's name.
-+      string name
-+    returns
-+      # New node's id.
-+      NodeId nodeId
-+
-+  # Sets node value for a node with given id.
-+  command setNodeValue
-+    parameters
-+      # Id of the node to set value for.
-+      NodeId nodeId
-+      # New node's value.
-+      string value
-+
-+  # Sets node HTML markup, returns new node id.
-+  command setOuterHTML
-+    parameters
-+      # Id of the node to set markup for.
-+      NodeId nodeId
-+      # Outer HTML markup to set.
-+      string outerHTML
-+
-+  # Undoes the last performed action.
-+  experimental command undo
-+
-+  # Returns iframe node that owns iframe with the given domain.
-+  experimental command getFrameOwner
-+    parameters
-+      Page.FrameId frameId
-+    returns
-+      # Resulting node.
-+      BackendNodeId backendNodeId
-+      # Id of the node at given coordinates, only when enabled and requested document.
-+      optional NodeId nodeId
-+
-+  # Returns the query container of the given node based on container query
-+  # conditions: containerName, physical and logical axes, and whether it queries
-+  # scroll-state or anchored elements. If no axes are provided and
-+  # queriesScrollState is false, the style container is returned, which is the
-+  # direct parent or the closest element with a matching container-name.
-+  experimental command getContainerForNode
-+    parameters
-+      NodeId nodeId
-+      optional string containerName
-+      optional PhysicalAxes physicalAxes
-+      optional LogicalAxes logicalAxes
-+      optional boolean queriesScrollState
-+      optional boolean queriesAnchored
-+    returns
-+      # The container node for the given node, or null if not found.
-+      optional NodeId nodeId
-+
-+  # Returns the descendants of a container query container that have
-+  # container queries against this container.
-+  experimental command getQueryingDescendantsForContainer
-+    parameters
-+      # Id of the container node to find querying descendants from.
-+      NodeId nodeId
-+    returns
-+      # Descendant nodes with container queries against the given container.
-+      array of NodeId nodeIds
-+
-+  # Returns the target anchor element of the given anchor query according to
-+  # https://www.w3.org/TR/css-anchor-position-1/#target.
-+  experimental command getAnchorElement
-+    parameters
-+      # Id of the positioned element from which to find the anchor.
-+      NodeId nodeId
-+      # An optional anchor specifier, as defined in
-+      # https://www.w3.org/TR/css-anchor-position-1/#anchor-specifier.
-+      # If not provided, it will return the implicit anchor element for
-+      # the given positioned element.
-+      optional string anchorSpecifier
-+    returns
-+      # The anchor element of the given anchor query.
-+      NodeId nodeId
-+
-+  # When enabling, this API force-opens the popover identified by nodeId
-+  # and keeps it open until disabled.
-+  experimental command forceShowPopover
-+    parameters
-+      # Id of the popover HTMLElement
-+      NodeId nodeId
-+      # If true, opens the popover and keeps it open. If false, closes the
-+      # popover if it was previously force-opened.
-+      boolean enable
-+    returns
-+      # List of popovers that were closed in order to respect popover stacking order.
-+      array of NodeId nodeIds
-+
-+  # Fired when `Element`'s attribute is modified.
-+  event attributeModified
-+    parameters
-+      # Id of the node that has changed.
-+      NodeId nodeId
-+      # Attribute name.
-+      string name
-+      # Attribute value.
-+      string value
-+
-+  # Fired when `Element`'s attribute is removed.
-+  event attributeRemoved
-+    parameters
-+      # Id of the node that has changed.
-+      NodeId nodeId
-+      # A ttribute name.
-+      string name
-+
-+  # Mirrors `DOMCharacterDataModified` event.
-+  event characterDataModified
-+    parameters
-+      # Id of the node that has changed.
-+      NodeId nodeId
-+      # New text value.
-+      string characterData
-+
-+  # Fired when `Container`'s child node count has changed.
-+  event childNodeCountUpdated
-+    parameters
-+      # Id of the node that has changed.
-+      NodeId nodeId
-+      # New node count.
-+      integer childNodeCount
-+
-+  # Mirrors `DOMNodeInserted` event.
-+  event childNodeInserted
-+    parameters
-+      # Id of the node that has changed.
-+      NodeId parentNodeId
-+      # Id of the previous sibling.
-+      NodeId previousNodeId
-+      # Inserted node data.
-+      Node node
-+
-+  # Mirrors `DOMNodeRemoved` event.
-+  event childNodeRemoved
-+    parameters
-+      # Parent id.
-+      NodeId parentNodeId
-+      # Id of the node that has been removed.
-+      NodeId nodeId
-+
-+  # Called when distribution is changed.
-+  experimental event distributedNodesUpdated
-+    parameters
-+      # Insertion point where distributed nodes were updated.
-+      NodeId insertionPointId
-+      # Distributed nodes for given insertion point.
-+      array of BackendNode distributedNodes
-+
-+  # Fired when `Document` has been totally updated. Node ids are no longer valid.
-+  event documentUpdated
-+
-+  # Fired when `Element`'s inline style is modified via a CSS property modification.
-+  experimental event inlineStyleInvalidated
-+    parameters
-+      # Ids of the nodes for which the inline styles have been invalidated.
-+      array of NodeId nodeIds
-+
-+  # Called when a pseudo element is added to an element.
-+  experimental event pseudoElementAdded
-+    parameters
-+      # Pseudo element's parent element id.
-+      NodeId parentId
-+      # The added pseudo element.
-+      Node pseudoElement
-+
-+  # Called when top layer elements are changed.
-+  experimental event topLayerElementsUpdated
-+
-+  # Fired when a node's scrollability state changes.
-+  experimental event scrollableFlagUpdated
-+    parameters
-+      # The id of the node.
-+      DOM.NodeId nodeId
-+      # If the node is scrollable.
-+      boolean isScrollable
-+
-+  # Called when a pseudo element is removed from an element.
-+  experimental event pseudoElementRemoved
-+    parameters
-+      # Pseudo element's parent element id.
-+      NodeId parentId
-+      # The removed pseudo element id.
-+      NodeId pseudoElementId
-+
-+  # Fired when backend wants to provide client with the missing DOM structure. This happens upon
-+  # most of the calls requesting node ids.
-+  event setChildNodes
-+    parameters
-+      # Parent node id to populate with children.
-+      NodeId parentId
-+      # Child nodes array.
-+      array of Node nodes
-+
-+  # Called when shadow root is popped from the element.
-+  experimental event shadowRootPopped
-+    parameters
-+      # Host element id.
-+      NodeId hostId
-+      # Shadow root id.
-+      NodeId rootId
-+
-+  # Called when shadow root is pushed into the element.
-+  experimental event shadowRootPushed
-+    parameters
-+      # Host element id.
-+      NodeId hostId
-+      # Shadow root.
-+      Node root
-diff --git a/pdl/domains/DOMDebugger.pdl b/pdl/domains/DOMDebugger.pdl
-new file mode 100644
-index 00000000..1f6e6add
---- /dev/null
-+++ b/pdl/domains/DOMDebugger.pdl
-@@ -0,0 +1,128 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# DOM debugging allows setting breakpoints on particular DOM operations and events. JavaScript
-+# execution will stop on these operations as if there was a regular breakpoint set.
-+domain DOMDebugger
-+  depends on DOM
-+  depends on Runtime
-+
-+  # DOM breakpoint type.
-+  type DOMBreakpointType extends string
-+    enum
-+      subtree-modified
-+      attribute-modified
-+      node-removed
-+
-+  # CSP Violation type.
-+  experimental type CSPViolationType extends string
-+    enum
-+      trustedtype-sink-violation
-+      trustedtype-policy-violation
-+
-+  # Object event listener.
-+  type EventListener extends object
-+    properties
-+      # `EventListener`'s type.
-+      string type
-+      # `EventListener`'s useCapture.
-+      boolean useCapture
-+      # `EventListener`'s passive flag.
-+      boolean passive
-+      # `EventListener`'s once flag.
-+      boolean once
-+      # Script id of the handler code.
-+      Runtime.ScriptId scriptId
-+      # Line number in the script (0-based).
-+      integer lineNumber
-+      # Column number in the script (0-based).
-+      integer columnNumber
-+      # Event handler function value.
-+      optional Runtime.RemoteObject handler
-+      # Event original handler function value.
-+      optional Runtime.RemoteObject originalHandler
-+      # Node the listener is added to (if any).
-+      optional DOM.BackendNodeId backendNodeId
-+
-+  # Returns event listeners of the given object.
-+  command getEventListeners
-+    parameters
-+      # Identifier of the object to return listeners for.
-+      Runtime.RemoteObjectId objectId
-+      # The maximum depth at which Node children should be retrieved, defaults to 1. Use -1 for the
-+      # entire subtree or provide an integer larger than 0.
-+      optional integer depth
-+      # Whether or not iframes and shadow roots should be traversed when returning the subtree
-+      # (default is false). Reports listeners for all contexts if pierce is enabled.
-+      optional boolean pierce
-+    returns
-+      # Array of relevant listeners.
-+      array of EventListener listeners
-+
-+  # Removes DOM breakpoint that was set using `setDOMBreakpoint`.
-+  command removeDOMBreakpoint
-+    parameters
-+      # Identifier of the node to remove breakpoint from.
-+      DOM.NodeId nodeId
-+      # Type of the breakpoint to remove.
-+      DOMBreakpointType type
-+
-+  # Removes breakpoint on particular DOM event.
-+  command removeEventListenerBreakpoint
-+    parameters
-+      # Event name.
-+      string eventName
-+      # EventTarget interface name.
-+      experimental optional string targetName
-+
-+  # Removes breakpoint on particular native event.
-+  experimental deprecated command removeInstrumentationBreakpoint
-+    redirect EventBreakpoints
-+    parameters
-+      # Instrumentation name to stop on.
-+      string eventName
-+
-+  # Removes breakpoint from XMLHttpRequest.
-+  command removeXHRBreakpoint
-+    parameters
-+      # Resource URL substring.
-+      string url
-+
-+  # Sets breakpoint on particular CSP violations.
-+  experimental command setBreakOnCSPViolation
-+    parameters
-+      # CSP Violations to stop upon.
-+      array of CSPViolationType violationTypes
-+
-+  # Sets breakpoint on particular operation with DOM.
-+  command setDOMBreakpoint
-+    parameters
-+      # Identifier of the node to set breakpoint on.
-+      DOM.NodeId nodeId
-+      # Type of the operation to stop upon.
-+      DOMBreakpointType type
-+
-+  # Sets breakpoint on particular DOM event.
-+  command setEventListenerBreakpoint
-+    parameters
-+      # DOM Event name to stop on (any DOM event will do).
-+      string eventName
-+      # EventTarget interface name to stop on. If equal to `"*"` or not provided, will stop on any
-+      # EventTarget.
-+      experimental optional string targetName
-+
-+  # Sets breakpoint on particular native event.
-+  experimental deprecated command setInstrumentationBreakpoint
-+    redirect EventBreakpoints
-+    parameters
-+      # Instrumentation name to stop on.
-+      string eventName
-+
-+  # Sets breakpoint on XMLHttpRequest.
-+  command setXHRBreakpoint
-+    parameters
-+      # Resource URL substring. All XHRs having this substring in the URL will get stopped upon.
-+      string url
-diff --git a/pdl/domains/DOMSnapshot.pdl b/pdl/domains/DOMSnapshot.pdl
-new file mode 100644
-index 00000000..ef470b7a
---- /dev/null
-+++ b/pdl/domains/DOMSnapshot.pdl
-@@ -0,0 +1,319 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain facilitates obtaining document snapshots with DOM, layout, and style information.
-+experimental domain DOMSnapshot
-+  depends on CSS
-+  depends on DOM
-+  depends on DOMDebugger
-+  depends on Page
-+
-+  # A Node in the DOM tree.
-+  type DOMNode extends object
-+    properties
-+      # `Node`'s nodeType.
-+      integer nodeType
-+      # `Node`'s nodeName.
-+      string nodeName
-+      # `Node`'s nodeValue.
-+      string nodeValue
-+      # Only set for textarea elements, contains the text value.
-+      optional string textValue
-+      # Only set for input elements, contains the input's associated text value.
-+      optional string inputValue
-+      # Only set for radio and checkbox input elements, indicates if the element has been checked
-+      optional boolean inputChecked
-+      # Only set for option elements, indicates if the element has been selected
-+      optional boolean optionSelected
-+      # `Node`'s id, corresponds to DOM.Node.backendNodeId.
-+      DOM.BackendNodeId backendNodeId
-+      # The indexes of the node's child nodes in the `domNodes` array returned by `getSnapshot`, if
-+      # any.
-+      optional array of integer childNodeIndexes
-+      # Attributes of an `Element` node.
-+      optional array of NameValue attributes
-+      # Indexes of pseudo elements associated with this node in the `domNodes` array returned by
-+      # `getSnapshot`, if any.
-+      optional array of integer pseudoElementIndexes
-+      # The index of the node's related layout tree node in the `layoutTreeNodes` array returned by
-+      # `getSnapshot`, if any.
-+      optional integer layoutNodeIndex
-+      # Document URL that `Document` or `FrameOwner` node points to.
-+      optional string documentURL
-+      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
-+      optional string baseURL
-+      # Only set for documents, contains the document's content language.
-+      optional string contentLanguage
-+      # Only set for documents, contains the document's character set encoding.
-+      optional string documentEncoding
-+      # `DocumentType` node's publicId.
-+      optional string publicId
-+      # `DocumentType` node's systemId.
-+      optional string systemId
-+      # Frame ID for frame owner elements and also for the document node.
-+      optional Page.FrameId frameId
-+      # The index of a frame owner element's content document in the `domNodes` array returned by
-+      # `getSnapshot`, if any.
-+      optional integer contentDocumentIndex
-+      # Type of a pseudo element node.
-+      optional DOM.PseudoType pseudoType
-+      # Shadow root type.
-+      optional DOM.ShadowRootType shadowRootType
-+      # Whether this DOM node responds to mouse clicks. This includes nodes that have had click
-+      # event listeners attached via JavaScript as well as anchor tags that naturally navigate when
-+      # clicked.
-+      optional boolean isClickable
-+      # Details of the node's event listeners, if any.
-+      optional array of DOMDebugger.EventListener eventListeners
-+      # The selected url for nodes with a srcset attribute.
-+      optional string currentSourceURL
-+      # The url of the script (if any) that generates this node.
-+      optional string originURL
-+      # Scroll offsets, set when this node is a Document.
-+      optional number scrollOffsetX
-+      optional number scrollOffsetY
-+
-+  # Details of post layout rendered text positions. The exact layout should not be regarded as
-+  # stable and may change between versions.
-+  type InlineTextBox extends object
-+    properties
-+      # The bounding box in document coordinates. Note that scroll offset of the document is ignored.
-+      DOM.Rect boundingBox
-+      # The starting index in characters, for this post layout textbox substring. Characters that
-+      # would be represented as a surrogate pair in UTF-16 have length 2.
-+      integer startCharacterIndex
-+      # The number of characters in this post layout textbox substring. Characters that would be
-+      # represented as a surrogate pair in UTF-16 have length 2.
-+      integer numCharacters
-+
-+  # Details of an element in the DOM tree with a LayoutObject.
-+  type LayoutTreeNode extends object
-+    properties
-+      # The index of the related DOM node in the `domNodes` array returned by `getSnapshot`.
-+      integer domNodeIndex
-+      # The bounding box in document coordinates. Note that scroll offset of the document is ignored.
-+      DOM.Rect boundingBox
-+      # Contents of the LayoutText, if any.
-+      optional string layoutText
-+      # The post-layout inline text nodes, if any.
-+      optional array of InlineTextBox inlineTextNodes
-+      # Index into the `computedStyles` array returned by `getSnapshot`.
-+      optional integer styleIndex
-+      # Global paint order index, which is determined by the stacking order of the nodes. Nodes
-+      # that are painted together will have the same index. Only provided if includePaintOrder in
-+      # getSnapshot was true.
-+      optional integer paintOrder
-+      # Set to true to indicate the element begins a new stacking context.
-+      optional boolean isStackingContext
-+
-+  # A subset of the full ComputedStyle as defined by the request whitelist.
-+  type ComputedStyle extends object
-+    properties
-+      # Name/value pairs of computed style properties.
-+      array of NameValue properties
-+
-+  # A name/value pair.
-+  type NameValue extends object
-+    properties
-+      # Attribute/property name.
-+      string name
-+      # Attribute/property value.
-+      string value
-+
-+  # Index of the string in the strings table.
-+  type StringIndex extends integer
-+
-+  # Index of the string in the strings table.
-+  type ArrayOfStrings extends array of StringIndex
-+
-+  # Data that is only present on rare nodes.
-+  type RareStringData extends object
-+    properties
-+      array of integer index
-+      array of StringIndex value
-+
-+  type RareBooleanData extends object
-+    properties
-+      array of integer index
-+
-+  type RareIntegerData extends object
-+    properties
-+      array of integer index
-+      array of integer value
-+
-+  type Rectangle extends array of number
-+
-+  # Document snapshot.
-+  type DocumentSnapshot extends object
-+    properties
-+      # Document URL that `Document` or `FrameOwner` node points to.
-+      StringIndex documentURL
-+      # Document title.
-+      StringIndex title
-+      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
-+      StringIndex baseURL
-+      # Contains the document's content language.
-+      StringIndex contentLanguage
-+      # Contains the document's character set encoding.
-+      StringIndex encodingName
-+      # `DocumentType` node's publicId.
-+      StringIndex publicId
-+      # `DocumentType` node's systemId.
-+      StringIndex systemId
-+      # Frame ID for frame owner elements and also for the document node.
-+      StringIndex frameId
-+      # A table with dom nodes.
-+      NodeTreeSnapshot nodes
-+      # The nodes in the layout tree.
-+      LayoutTreeSnapshot layout
-+      # The post-layout inline text nodes.
-+      TextBoxSnapshot textBoxes
-+      # Horizontal scroll offset.
-+      optional number scrollOffsetX
-+      # Vertical scroll offset.
-+      optional number scrollOffsetY
-+      # Document content width.
-+      optional number contentWidth
-+      # Document content height.
-+      optional number contentHeight
-+
-+  # Table containing nodes.
-+  type NodeTreeSnapshot extends object
-+    properties
-+      # Parent node index.
-+      optional array of integer parentIndex
-+      # `Node`'s nodeType.
-+      optional array of integer nodeType
-+      # Type of the shadow root the `Node` is in. String values are equal to the `ShadowRootType` enum.
-+      optional RareStringData shadowRootType
-+      # `Node`'s nodeName.
-+      optional array of StringIndex nodeName
-+      # `Node`'s nodeValue.
-+      optional array of StringIndex nodeValue
-+      # `Node`'s id, corresponds to DOM.Node.backendNodeId.
-+      optional array of DOM.BackendNodeId backendNodeId
-+      # Attributes of an `Element` node. Flatten name, value pairs.
-+      optional array of ArrayOfStrings attributes
-+      # Only set for textarea elements, contains the text value.
-+      optional RareStringData textValue
-+      # Only set for input elements, contains the input's associated text value.
-+      optional RareStringData inputValue
-+      # Only set for radio and checkbox input elements, indicates if the element has been checked
-+      optional RareBooleanData inputChecked
-+      # Only set for option elements, indicates if the element has been selected
-+      optional RareBooleanData optionSelected
-+      # The index of the document in the list of the snapshot documents.
-+      optional RareIntegerData contentDocumentIndex
-+      # Type of a pseudo element node.
-+      optional RareStringData pseudoType
-+      # Pseudo element identifier for this node. Only present if there is a
-+      # valid pseudoType.
-+      optional RareStringData pseudoIdentifier
-+      # Whether this DOM node responds to mouse clicks. This includes nodes that have had click
-+      # event listeners attached via JavaScript as well as anchor tags that naturally navigate when
-+      # clicked.
-+      optional RareBooleanData isClickable
-+      # The selected url for nodes with a srcset attribute.
-+      optional RareStringData currentSourceURL
-+      # The url of the script (if any) that generates this node.
-+      optional RareStringData originURL
-+
-+  # Table of details of an element in the DOM tree with a LayoutObject.
-+  type LayoutTreeSnapshot extends object
-+    properties
-+      # Index of the corresponding node in the `NodeTreeSnapshot` array returned by `captureSnapshot`.
-+      array of integer nodeIndex
-+      # Array of indexes specifying computed style strings, filtered according to the `computedStyles` parameter passed to `captureSnapshot`.
-+      array of ArrayOfStrings styles
-+      # The absolute position bounding box.
-+      array of Rectangle bounds
-+      # Contents of the LayoutText, if any.
-+      array of StringIndex text
-+      # Stacking context information.
-+      RareBooleanData stackingContexts
-+      # Global paint order index, which is determined by the stacking order of the nodes. Nodes
-+      # that are painted together will have the same index. Only provided if includePaintOrder in
-+      # captureSnapshot was true.
-+      optional array of integer paintOrders
-+      # The offset rect of nodes. Only available when includeDOMRects is set to true
-+      optional array of Rectangle offsetRects
-+      # The scroll rect of nodes. Only available when includeDOMRects is set to true
-+      optional array of Rectangle scrollRects
-+      # The client rect of nodes. Only available when includeDOMRects is set to true
-+      optional array of Rectangle clientRects
-+      # The list of background colors that are blended with colors of overlapping elements.
-+      experimental optional array of StringIndex blendedBackgroundColors
-+      # The list of computed text opacities.
-+      experimental optional array of number textColorOpacities
-+
-+  # Table of details of the post layout rendered text positions. The exact layout should not be regarded as
-+  # stable and may change between versions.
-+  type TextBoxSnapshot extends object
-+    properties
-+      # Index of the layout tree node that owns this box collection.
-+      array of integer layoutIndex
-+      # The absolute position bounding box.
-+      array of Rectangle bounds
-+      # The starting index in characters, for this post layout textbox substring. Characters that
-+      # would be represented as a surrogate pair in UTF-16 have length 2.
-+      array of integer start
-+      # The number of characters in this post layout textbox substring. Characters that would be
-+      # represented as a surrogate pair in UTF-16 have length 2.
-+      array of integer length
-+
-+  # Disables DOM snapshot agent for the given page.
-+  command disable
-+
-+  # Enables DOM snapshot agent for the given page.
-+  command enable
-+
-+  # Returns a document snapshot, including the full DOM tree of the root node (including iframes,
-+  # template contents, and imported documents) in a flattened array, as well as layout and
-+  # white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
-+  # flattened.
-+  deprecated command getSnapshot
-+    parameters
-+      # Whitelist of computed styles to return.
-+      array of string computedStyleWhitelist
-+      # Whether or not to retrieve details of DOM listeners (default false).
-+      optional boolean includeEventListeners
-+      # Whether to determine and include the paint order index of LayoutTreeNodes (default false).
-+      optional boolean includePaintOrder
-+      # Whether to include UA shadow tree in the snapshot (default false).
-+      optional boolean includeUserAgentShadowTree
-+    returns
-+      # The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document.
-+      array of DOMNode domNodes
-+      # The nodes in the layout tree.
-+      array of LayoutTreeNode layoutTreeNodes
-+      # Whitelisted ComputedStyle properties for each node in the layout tree.
-+      array of ComputedStyle computedStyles
-+
-+  # Returns a document snapshot, including the full DOM tree of the root node (including iframes,
-+  # template contents, and imported documents) in a flattened array, as well as layout and
-+  # white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
-+  # flattened.
-+  command captureSnapshot
-+    parameters
-+      # Whitelist of computed styles to return.
-+      array of string computedStyles
-+      # Whether to include layout object paint orders into the snapshot.
-+      optional boolean includePaintOrder
-+      # Whether to include DOM rectangles (offsetRects, clientRects, scrollRects) into the snapshot
-+      optional boolean includeDOMRects
-+      # Whether to include blended background colors in the snapshot (default: false).
-+      # Blended background color is achieved by blending background colors of all elements
-+      # that overlap with the current element.
-+      experimental optional boolean includeBlendedBackgroundColors
-+      # Whether to include text color opacity in the snapshot (default: false).
-+      # An element might have the opacity property set that affects the text color of the element.
-+      # The final text color opacity is computed based on the opacity of all overlapping elements.
-+      experimental optional boolean includeTextColorOpacities
-+    returns
-+      # The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document.
-+      array of DocumentSnapshot documents
-+      # Shared string table that all string properties refer to with indexes.
-+      array of string strings
-diff --git a/pdl/domains/DOMStorage.pdl b/pdl/domains/DOMStorage.pdl
-new file mode 100644
-index 00000000..ce2bd957
---- /dev/null
-+++ b/pdl/domains/DOMStorage.pdl
-@@ -0,0 +1,72 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Query and modify DOM storage.
-+experimental domain DOMStorage
-+
-+  type SerializedStorageKey extends string
-+
-+  # DOM Storage identifier.
-+  type StorageId extends object
-+    properties
-+      # Security origin for the storage.
-+      optional string securityOrigin
-+      # Represents a key by which DOM Storage keys its CachedStorageAreas
-+      optional SerializedStorageKey storageKey
-+      # Whether the storage is local storage (not session storage).
-+      boolean isLocalStorage
-+
-+  # DOM Storage item.
-+  type Item extends array of string
-+
-+  command clear
-+    parameters
-+      StorageId storageId
-+
-+  # Disables storage tracking, prevents storage events from being sent to the client.
-+  command disable
-+
-+  # Enables storage tracking, storage events will now be delivered to the client.
-+  command enable
-+
-+  command getDOMStorageItems
-+    parameters
-+      StorageId storageId
-+    returns
-+      array of Item entries
-+
-+  command removeDOMStorageItem
-+    parameters
-+      StorageId storageId
-+      string key
-+
-+  command setDOMStorageItem
-+    parameters
-+      StorageId storageId
-+      string key
-+      string value
-+
-+  event domStorageItemAdded
-+    parameters
-+      StorageId storageId
-+      string key
-+      string newValue
-+
-+  event domStorageItemRemoved
-+    parameters
-+      StorageId storageId
-+      string key
-+
-+  event domStorageItemUpdated
-+    parameters
-+      StorageId storageId
-+      string key
-+      string oldValue
-+      string newValue
-+
-+  event domStorageItemsCleared
-+    parameters
-+      StorageId storageId
-diff --git a/pdl/domains/DeviceAccess.pdl b/pdl/domains/DeviceAccess.pdl
-new file mode 100644
-index 00000000..1e94537f
---- /dev/null
-+++ b/pdl/domains/DeviceAccess.pdl
-@@ -0,0 +1,43 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain DeviceAccess
-+  # Device request id.
-+  type RequestId extends string
-+
-+  # A device id.
-+  type DeviceId extends string
-+
-+  # Device information displayed in a user prompt to select a device.
-+  type PromptDevice extends object
-+    properties
-+      DeviceId id
-+      # Display name as it appears in a device request user prompt.
-+      string name
-+
-+  # Enable events in this domain.
-+  command enable
-+
-+  # Disable events in this domain.
-+  command disable
-+
-+  # Select a device in response to a DeviceAccess.deviceRequestPrompted event.
-+  command selectPrompt
-+    parameters
-+      RequestId id
-+      DeviceId deviceId
-+
-+  # Cancel a prompt in response to a DeviceAccess.deviceRequestPrompted event.
-+  command cancelPrompt
-+    parameters
-+      RequestId id
-+
-+  # A device request opened a user prompt to select a device. Respond with the
-+  # selectPrompt or cancelPrompt command.
-+  event deviceRequestPrompted
-+    parameters
-+      RequestId id
-+      array of PromptDevice devices
-diff --git a/pdl/domains/DeviceOrientation.pdl b/pdl/domains/DeviceOrientation.pdl
-new file mode 100644
-index 00000000..37116d3d
---- /dev/null
-+++ b/pdl/domains/DeviceOrientation.pdl
-@@ -0,0 +1,20 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain DeviceOrientation
-+
-+  # Clears the overridden Device Orientation.
-+  command clearDeviceOrientationOverride
-+
-+  # Overrides the Device Orientation.
-+  command setDeviceOrientationOverride
-+    parameters
-+      # Mock alpha
-+      number alpha
-+      # Mock beta
-+      number beta
-+      # Mock gamma
-+      number gamma
-diff --git a/pdl/domains/Emulation.pdl b/pdl/domains/Emulation.pdl
-new file mode 100644
-index 00000000..861b76ed
---- /dev/null
-+++ b/pdl/domains/Emulation.pdl
-@@ -0,0 +1,522 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain emulates different environments for the page.
-+domain Emulation
-+  depends on DOM
-+  depends on Page
-+  depends on Runtime
-+
-+  experimental type SafeAreaInsets extends object
-+    properties
-+      # Overrides safe-area-inset-top.
-+      optional integer top
-+      # Overrides safe-area-max-inset-top.
-+      optional integer topMax
-+      # Overrides safe-area-inset-left.
-+      optional integer left
-+      # Overrides safe-area-max-inset-left.
-+      optional integer leftMax
-+      # Overrides safe-area-inset-bottom.
-+      optional integer bottom
-+      # Overrides safe-area-max-inset-bottom.
-+      optional integer bottomMax
-+      # Overrides safe-area-inset-right.
-+      optional integer right
-+      # Overrides safe-area-max-inset-right.
-+      optional integer rightMax
-+
-+  # Screen orientation.
-+  type ScreenOrientation extends object
-+    properties
-+      # Orientation type.
-+      enum type
-+        portraitPrimary
-+        portraitSecondary
-+        landscapePrimary
-+        landscapeSecondary
-+      # Orientation angle.
-+      integer angle
-+
-+  type DisplayFeature extends object
-+    properties
-+      # Orientation of a display feature in relation to screen
-+      enum orientation
-+        vertical
-+        horizontal
-+      # The offset from the screen origin in either the x (for vertical
-+      # orientation) or y (for horizontal orientation) direction.
-+      integer offset
-+      # A display feature may mask content such that it is not physically
-+      # displayed - this length along with the offset describes this area.
-+      # A display feature that only splits content will have a 0 mask_length.
-+      integer maskLength
-+
-+  type DevicePosture extends object
-+    properties
-+      # Current posture of the device
-+      enum type
-+        continuous
-+        folded
-+
-+  type MediaFeature extends object
-+    properties
-+      string name
-+      string value
-+
-+  # advance: If the scheduler runs out of immediate work, the virtual time base may fast forward to
-+  # allow the next delayed task (if any) to run; pause: The virtual time base may not advance;
-+  # pauseIfNetworkFetchesPending: The virtual time base may not advance if there are any pending
-+  # resource fetches.
-+  experimental type VirtualTimePolicy extends string
-+    enum
-+      advance
-+      pause
-+      pauseIfNetworkFetchesPending
-+
-+  # Used to specify User Agent Client Hints to emulate. See https://wicg.github.io/ua-client-hints
-+  experimental type UserAgentBrandVersion extends object
-+    properties
-+      string brand
-+      string version
-+
-+  # Used to specify User Agent Client Hints to emulate. See https://wicg.github.io/ua-client-hints
-+  # Missing optional values will be filled in by the target with what it would normally use.
-+  experimental type UserAgentMetadata extends object
-+    properties
-+      # Brands appearing in Sec-CH-UA.
-+      optional array of UserAgentBrandVersion brands
-+      # Brands appearing in Sec-CH-UA-Full-Version-List.
-+      optional array of UserAgentBrandVersion fullVersionList
-+      deprecated optional string fullVersion
-+      string platform
-+      string platformVersion
-+      string architecture
-+      string model
-+      boolean mobile
-+      optional string bitness
-+      optional boolean wow64
-+      # Used to specify User Agent form-factor values.
-+      # See https://wicg.github.io/ua-client-hints/#sec-ch-ua-form-factors
-+      optional array of string formFactors
-+
-+  # Used to specify sensor types to emulate.
-+  # See https://w3c.github.io/sensors/#automation for more information.
-+  experimental type SensorType extends string
-+    enum
-+      absolute-orientation
-+      accelerometer
-+      ambient-light
-+      gravity
-+      gyroscope
-+      linear-acceleration
-+      magnetometer
-+      relative-orientation
-+
-+  experimental type SensorMetadata extends object
-+    properties
-+      optional boolean available
-+      optional number minimumFrequency
-+      optional number maximumFrequency
-+
-+  experimental type SensorReadingSingle extends object
-+    properties
-+      number value
-+
-+  experimental type SensorReadingXYZ extends object
-+    properties
-+      number x
-+      number y
-+      number z
-+
-+  experimental type SensorReadingQuaternion extends object
-+    properties
-+      number x
-+      number y
-+      number z
-+      number w
-+
-+  experimental type SensorReading extends object
-+    properties
-+      optional SensorReadingSingle single
-+      optional SensorReadingXYZ xyz
-+      optional SensorReadingQuaternion quaternion
-+
-+  experimental type PressureSource extends string
-+    enum
-+      cpu
-+
-+  experimental type PressureState extends string
-+    enum
-+      nominal
-+      fair
-+      serious
-+      critical
-+
-+  experimental type PressureMetadata extends object
-+    properties
-+      optional boolean available
-+
-+  # Tells whether emulation is supported.
-+  deprecated command canEmulate
-+    returns
-+      # True if emulation is supported.
-+      boolean result
-+
-+  # Clears the overridden device metrics.
-+  command clearDeviceMetricsOverride
-+
-+  # Clears the overridden Geolocation Position and Error.
-+  command clearGeolocationOverride
-+
-+  # Requests that page scale factor is reset to initial values.
-+  experimental command resetPageScaleFactor
-+
-+  # Enables or disables simulating a focused and active page.
-+  experimental command setFocusEmulationEnabled
-+    parameters
-+      # Whether to enable to disable focus emulation.
-+      boolean enabled
-+
-+  # Automatically render all web contents using a dark theme.
-+  experimental command setAutoDarkModeOverride
-+    parameters
-+      # Whether to enable or disable automatic dark mode.
-+      # If not specified, any existing override will be cleared.
-+      optional boolean enabled
-+
-+  # Enables CPU throttling to emulate slow CPUs.
-+  command setCPUThrottlingRate
-+    parameters
-+      # Throttling rate as a slowdown factor (1 is no throttle, 2 is 2x slowdown, etc).
-+      number rate
-+
-+  # Sets or clears an override of the default background color of the frame. This override is used
-+  # if the content does not specify one.
-+  command setDefaultBackgroundColorOverride
-+    parameters
-+      # RGBA of the default background color. If not specified, any existing override will be
-+      # cleared.
-+      optional DOM.RGBA color
-+
-+  # Overrides the values for env(safe-area-inset-*) and env(safe-area-max-inset-*). Unset values will cause the
-+  # respective variables to be undefined, even if previously overridden.
-+  experimental command setSafeAreaInsetsOverride
-+    parameters
-+      SafeAreaInsets insets
-+
-+  # Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
-+  # window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
-+  # query results).
-+  command setDeviceMetricsOverride
-+    parameters
-+      # Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
-+      integer width
-+      # Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
-+      integer height
-+      # Overriding device scale factor value. 0 disables the override.
-+      number deviceScaleFactor
-+      # Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
-+      # autosizing and more.
-+      boolean mobile
-+      # Scale to apply to resulting view image.
-+      experimental optional number scale
-+      # Overriding screen width value in pixels (minimum 0, maximum 10000000).
-+      experimental optional integer screenWidth
-+      # Overriding screen height value in pixels (minimum 0, maximum 10000000).
-+      experimental optional integer screenHeight
-+      # Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
-+      experimental optional integer positionX
-+      # Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
-+      experimental optional integer positionY
-+      # Do not set visible view size, rely upon explicit setVisibleSize call.
-+      experimental optional boolean dontSetVisibleSize
-+      # Screen orientation override.
-+      optional ScreenOrientation screenOrientation
-+      # If set, the visible area of the page will be overridden to this viewport. This viewport
-+      # change is not observed by the page, e.g. viewport-relative elements do not change positions.
-+      experimental optional Page.Viewport viewport
-+      # If set, the display feature of a multi-segment screen. If not set, multi-segment support
-+      # is turned-off.
-+      # Deprecated, use Emulation.setDisplayFeaturesOverride.
-+      experimental deprecated optional DisplayFeature displayFeature
-+      # If set, the posture of a foldable device. If not set the posture is set
-+      # to continuous.
-+      # Deprecated, use Emulation.setDevicePostureOverride.
-+      experimental deprecated optional DevicePosture devicePosture
-+
-+  # Start reporting the given posture value to the Device Posture API.
-+  # This override can also be set in setDeviceMetricsOverride().
-+  experimental command setDevicePostureOverride
-+    parameters
-+      DevicePosture posture
-+
-+  # Clears a device posture override set with either setDeviceMetricsOverride()
-+  # or setDevicePostureOverride() and starts using posture information from the
-+  # platform again.
-+  # Does nothing if no override is set.
-+  experimental command clearDevicePostureOverride
-+
-+  # Start using the given display features to pupulate the Viewport Segments API.
-+  # This override can also be set in setDeviceMetricsOverride().
-+  experimental command setDisplayFeaturesOverride
-+    parameters
-+      array of DisplayFeature features
-+
-+  # Clears the display features override set with either setDeviceMetricsOverride()
-+  # or setDisplayFeaturesOverride() and starts using display features from the
-+  # platform again.
-+  # Does nothing if no override is set.
-+  experimental command clearDisplayFeaturesOverride
-+
-+  experimental command setScrollbarsHidden
-+    parameters
-+      # Whether scrollbars should be always hidden.
-+      boolean hidden
-+
-+  experimental command setDocumentCookieDisabled
-+    parameters
-+      # Whether document.coookie API should be disabled.
-+      boolean disabled
-+
-+  experimental command setEmitTouchEventsForMouse
-+    parameters
-+      # Whether touch emulation based on mouse input should be enabled.
-+      boolean enabled
-+      # Touch/gesture events configuration. Default: current platform.
-+      optional enum configuration
-+        mobile
-+        desktop
-+
-+  # Emulates the given media type or media feature for CSS media queries.
-+  command setEmulatedMedia
-+    parameters
-+      # Media type to emulate. Empty string disables the override.
-+      optional string media
-+      # Media features to emulate.
-+      optional array of MediaFeature features
-+
-+  # Emulates the given vision deficiency.
-+  command setEmulatedVisionDeficiency
-+    parameters
-+      # Vision deficiency to emulate. Order: best-effort emulations come first, followed by any
-+      # physiologically accurate emulations for medically recognized color vision deficiencies.
-+      enum type
-+        none
-+        blurredVision
-+        reducedContrast
-+        achromatopsia
-+        deuteranopia
-+        protanopia
-+        tritanopia
-+
-+  # Emulates the given OS text scale.
-+  command setEmulatedOSTextScale
-+    parameters
-+      optional number scale
-+
-+  # Overrides the Geolocation Position or Error. Omitting latitude, longitude or
-+  # accuracy emulates position unavailable.
-+  command setGeolocationOverride
-+    parameters
-+      # Mock latitude
-+      optional number latitude
-+      # Mock longitude
-+      optional number longitude
-+      # Mock accuracy
-+      optional number accuracy
-+      # Mock altitude
-+      optional number altitude
-+      # Mock altitudeAccuracy
-+      optional number altitudeAccuracy
-+      # Mock heading
-+      optional number heading
-+      # Mock speed
-+      optional number speed
-+
-+  experimental command getOverriddenSensorInformation
-+    parameters
-+      SensorType type
-+    returns
-+      number requestedSamplingFrequency
-+
-+  # Overrides a platform sensor of a given type. If |enabled| is true, calls to
-+  # Sensor.start() will use a virtual sensor as backend rather than fetching
-+  # data from a real hardware sensor. Otherwise, existing virtual
-+  # sensor-backend Sensor objects will fire an error event and new calls to
-+  # Sensor.start() will attempt to use a real sensor instead.
-+  experimental command setSensorOverrideEnabled
-+    parameters
-+      boolean enabled
-+      SensorType type
-+      optional SensorMetadata metadata
-+
-+  # Updates the sensor readings reported by a sensor type previously overridden
-+  # by setSensorOverrideEnabled.
-+  experimental command setSensorOverrideReadings
-+    parameters
-+      SensorType type
-+      SensorReading reading
-+
-+  # Overrides a pressure source of a given type, as used by the Compute
-+  # Pressure API, so that updates to PressureObserver.observe() are provided
-+  # via setPressureStateOverride instead of being retrieved from
-+  # platform-provided telemetry data.
-+  experimental command setPressureSourceOverrideEnabled
-+    parameters
-+      boolean enabled
-+      PressureSource source
-+      optional PressureMetadata metadata
-+
-+  # TODO: OBSOLETE: To remove when setPressureDataOverride is merged.
-+  # Provides a given pressure state that will be processed and eventually be
-+  # delivered to PressureObserver users. |source| must have been previously
-+  # overridden by setPressureSourceOverrideEnabled.
-+  experimental command setPressureStateOverride
-+    parameters
-+      PressureSource source
-+      PressureState state
-+
-+  # Provides a given pressure data set that will be processed and eventually be
-+  # delivered to PressureObserver users. |source| must have been previously
-+  # overridden by setPressureSourceOverrideEnabled.
-+  experimental command setPressureDataOverride
-+    parameters
-+      PressureSource source
-+      PressureState state
-+      optional number ownContributionEstimate
-+
-+  # Overrides the Idle state.
-+  command setIdleOverride
-+    parameters
-+      # Mock isUserActive
-+      boolean isUserActive
-+      # Mock isScreenUnlocked
-+      boolean isScreenUnlocked
-+
-+  # Clears Idle state overrides.
-+  command clearIdleOverride
-+
-+  # Overrides value returned by the javascript navigator object.
-+  experimental deprecated command setNavigatorOverrides
-+    parameters
-+      # The platform navigator.platform should return.
-+      string platform
-+
-+  # Sets a specified page scale factor.
-+  experimental command setPageScaleFactor
-+    parameters
-+      # Page scale factor.
-+      number pageScaleFactor
-+
-+  # Switches script execution in the page.
-+  command setScriptExecutionDisabled
-+    parameters
-+      # Whether script execution should be disabled in the page.
-+      boolean value
-+
-+  # Enables touch on platforms which do not support them.
-+  command setTouchEmulationEnabled
-+    parameters
-+      # Whether the touch event emulation should be enabled.
-+      boolean enabled
-+      # Maximum touch points supported. Defaults to one.
-+      optional integer maxTouchPoints
-+
-+  # Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets
-+  # the current virtual time policy.  Note this supersedes any previous time budget.
-+  experimental command setVirtualTimePolicy
-+    parameters
-+      VirtualTimePolicy policy
-+      # If set, after this many virtual milliseconds have elapsed virtual time will be paused and a
-+      # virtualTimeBudgetExpired event is sent.
-+      optional number budget
-+      # If set this specifies the maximum number of tasks that can be run before virtual is forced
-+      # forwards to prevent deadlock.
-+      optional integer maxVirtualTimeTaskStarvationCount
-+      # If set, base::Time::Now will be overridden to initially return this value.
-+      optional Network.TimeSinceEpoch initialVirtualTime
-+    returns
-+      # Absolute timestamp at which virtual time was first enabled (up time in milliseconds).
-+      number virtualTimeTicksBase
-+
-+  # Overrides default host system locale with the specified one.
-+  experimental command setLocaleOverride
-+    parameters
-+      # ICU style C locale (e.g. "en_US"). If not specified or empty, disables the override and
-+      # restores default host system locale.
-+      optional string locale
-+
-+  # Overrides default host system timezone with the specified one.
-+  command setTimezoneOverride
-+    parameters
-+      # The timezone identifier. List of supported timezones:
-+      # https://source.chromium.org/chromium/chromium/deps/icu.git/+/faee8bc70570192d82d2978a71e2a615788597d1:source/data/misc/metaZones.txt
-+      # If empty, disables the override and restores default host system timezone.
-+      string timezoneId
-+
-+  # Resizes the frame/viewport of the page. Note that this does not affect the frame's container
-+  # (e.g. browser window). Can be used to produce screenshots of the specified size. Not supported
-+  # on Android.
-+  experimental deprecated command setVisibleSize
-+    parameters
-+      # Frame width (DIP).
-+      integer width
-+      # Frame height (DIP).
-+      integer height
-+
-+  # Notification sent after the virtual time budget for the current VirtualTimePolicy has run out.
-+  experimental event virtualTimeBudgetExpired
-+
-+  # Enum of image types that can be disabled.
-+  experimental type DisabledImageType extends string
-+    enum
-+      avif
-+      webp
-+
-+  experimental command setDisabledImageTypes
-+    parameters
-+      # Image types to disable.
-+      array of DisabledImageType imageTypes
-+
-+
-+  # Override the value of navigator.connection.saveData
-+  experimental command setDataSaverOverride
-+    parameters
-+      # Override value. Omitting the parameter disables the override.
-+      optional boolean dataSaverEnabled
-+
-+  experimental command setHardwareConcurrencyOverride
-+    parameters
-+      # Hardware concurrency to report
-+      integer hardwareConcurrency
-+
-+  # Allows overriding user agent with the given string.
-+  # `userAgentMetadata` must be set for Client Hint headers to be sent.
-+  command setUserAgentOverride
-+    parameters
-+      # User agent to use.
-+      string userAgent
-+      # Browser language to emulate.
-+      optional string acceptLanguage
-+      # The platform navigator.platform should return.
-+      optional string platform
-+      # To be sent in Sec-CH-UA-* headers and returned in navigator.userAgentData
-+      experimental optional UserAgentMetadata userAgentMetadata
-+
-+  # Allows overriding the automation flag.
-+  experimental command setAutomationOverride
-+    parameters
-+      # Whether the override should be enabled.
-+      boolean enabled
-+
-+  # Allows overriding the difference between the small and large viewport sizes, which determine the
-+  # value of the `svh` and `lvh` unit, respectively. Only supported for top-level frames.
-+  experimental command setSmallViewportHeightDifferenceOverride
-+    parameters
-+      # This will cause an element of size 100svh to be `difference` pixels smaller than an element
-+      # of size 100lvh.
-+      integer difference
-diff --git a/pdl/domains/EventBreakpoints.pdl b/pdl/domains/EventBreakpoints.pdl
-new file mode 100644
-index 00000000..c87e666b
---- /dev/null
-+++ b/pdl/domains/EventBreakpoints.pdl
-@@ -0,0 +1,24 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# EventBreakpoints permits setting JavaScript breakpoints on operations and events
-+# occurring in native code invoked from JavaScript. Once breakpoint is hit, it is
-+# reported through Debugger domain, similarly to regular breakpoints being hit.
-+experimental domain EventBreakpoints
-+  # Sets breakpoint on particular native event.
-+  command setInstrumentationBreakpoint
-+    parameters
-+      # Instrumentation name to stop on.
-+      string eventName
-+
-+  # Removes breakpoint on particular native event.
-+  command removeInstrumentationBreakpoint
-+    parameters
-+      # Instrumentation name to stop on.
-+      string eventName
-+
-+  # Removes all breakpoints
-+  command disable
-diff --git a/pdl/domains/Extensions.pdl b/pdl/domains/Extensions.pdl
-new file mode 100644
-index 00000000..8f983450
---- /dev/null
-+++ b/pdl/domains/Extensions.pdl
-@@ -0,0 +1,72 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Defines commands and events for browser extensions.
-+experimental domain Extensions
-+  # Storage areas.
-+  type StorageArea extends string
-+    enum
-+      session
-+      local
-+      sync
-+      managed
-+  # Installs an unpacked extension from the filesystem similar to
-+  # --load-extension CLI flags. Returns extension ID once the extension
-+  # has been installed. Available if the client is connected using the
-+  # --remote-debugging-pipe flag and the --enable-unsafe-extension-debugging
-+  # flag is set.
-+  command loadUnpacked
-+    parameters
-+      # Absolute file path.
-+      string path
-+    returns
-+      # Extension id.
-+      string id
-+  # Uninstalls an unpacked extension (others not supported) from the profile.
-+  # Available if the client is connected using the --remote-debugging-pipe flag
-+  # and the --enable-unsafe-extension-debugging.
-+  command uninstall
-+    parameters
-+      # Extension id.
-+      string id
-+  # Gets data from extension storage in the given `storageArea`. If `keys` is
-+  # specified, these are used to filter the result.
-+  command getStorageItems
-+    parameters
-+      # ID of extension.
-+      string id
-+      # StorageArea to retrieve data from.
-+      StorageArea storageArea
-+      # Keys to retrieve.
-+      optional array of string keys
-+    returns
-+      object data
-+  # Removes `keys` from extension storage in the given `storageArea`.
-+  command removeStorageItems
-+    parameters
-+      # ID of extension.
-+      string id
-+      # StorageArea to remove data from.
-+      StorageArea storageArea
-+      # Keys to remove.
-+      array of string keys
-+  # Clears extension storage in the given `storageArea`.
-+  command clearStorageItems
-+    parameters
-+      # ID of extension.
-+      string id
-+      # StorageArea to remove data from.
-+      StorageArea storageArea
-+  # Sets `values` in extension storage in the given `storageArea`. The provided `values`
-+  # will be merged with existing values in the storage area.
-+  command setStorageItems
-+    parameters
-+      # ID of extension.
-+      string id
-+      # StorageArea to set data in.
-+      StorageArea storageArea
-+      # Values to set.
-+      object values
-diff --git a/pdl/domains/FedCm.pdl b/pdl/domains/FedCm.pdl
-new file mode 100644
-index 00000000..3dd4e0d3
---- /dev/null
-+++ b/pdl/domains/FedCm.pdl
-@@ -0,0 +1,100 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain allows interacting with the FedCM dialog.
-+experimental domain FedCm
-+  # Whether this is a sign-up or sign-in action for this account, i.e.
-+  # whether this account has ever been used to sign in to this RP before.
-+  type LoginState extends string
-+    enum
-+      SignIn
-+      SignUp
-+
-+  # The types of FedCM dialogs.
-+  type DialogType extends string
-+    enum
-+      AccountChooser
-+      AutoReauthn
-+      ConfirmIdpLogin
-+      Error
-+
-+  # The buttons on the FedCM dialog.
-+  type DialogButton extends string
-+    enum
-+      ConfirmIdpLoginContinue
-+      ErrorGotIt
-+      ErrorMoreDetails
-+
-+  # The URLs that each account has
-+  type AccountUrlType extends string
-+    enum
-+      TermsOfService
-+      PrivacyPolicy
-+
-+  # Corresponds to IdentityRequestAccount
-+  type Account extends object
-+    properties
-+      string accountId
-+      string email
-+      string name
-+      string givenName
-+      string pictureUrl
-+      string idpConfigUrl
-+      string idpLoginUrl
-+      LoginState loginState
-+      # These two are only set if the loginState is signUp
-+      optional string termsOfServiceUrl
-+      optional string privacyPolicyUrl
-+
-+  event dialogShown
-+    parameters
-+      string dialogId
-+      DialogType dialogType
-+      array of Account accounts
-+      # These exist primarily so that the caller can verify the
-+      # RP context was used appropriately.
-+      string title
-+      optional string subtitle
-+
-+  # Triggered when a dialog is closed, either by user action, JS abort,
-+  # or a command below.
-+  event dialogClosed
-+    parameters
-+      string dialogId
-+
-+  command enable
-+    parameters
-+      # Allows callers to disable the promise rejection delay that would
-+      # normally happen, if this is unimportant to what's being tested.
-+      # (step 4 of https://fedidcg.github.io/FedCM/#browser-api-rp-sign-in)
-+      optional boolean disableRejectionDelay
-+
-+  command disable
-+
-+  command selectAccount
-+    parameters
-+      string dialogId
-+      integer accountIndex
-+
-+  command clickDialogButton
-+    parameters
-+      string dialogId
-+      DialogButton dialogButton
-+
-+  command openUrl
-+    parameters
-+      string dialogId
-+      integer accountIndex
-+      AccountUrlType accountUrlType
-+
-+  command dismissDialog
-+    parameters
-+      string dialogId
-+      optional boolean triggerCooldown
-+
-+  # Resets the cooldown time, if any, to allow the next FedCM call to show
-+  # a dialog even if one was recently dismissed by the user.
-+  command resetCooldown
-diff --git a/pdl/domains/Fetch.pdl b/pdl/domains/Fetch.pdl
-new file mode 100644
-index 00000000..69852c2d
---- /dev/null
-+++ b/pdl/domains/Fetch.pdl
-@@ -0,0 +1,251 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# A domain for letting clients substitute browser's network layer with client code.
-+domain Fetch
-+  depends on Network
-+  depends on IO
-+  depends on Page
-+
-+  # Unique request identifier.
-+  # Note that this does not identify individual HTTP requests that are part of
-+  # a network request.
-+  type RequestId extends string
-+
-+  # Stages of the request to handle. Request will intercept before the request is
-+  # sent. Response will intercept after the response is received (but before response
-+  # body is received).
-+  type RequestStage extends string
-+    enum
-+      Request
-+      Response
-+
-+  type RequestPattern extends object
-+    properties
-+      # Wildcards (`'*'` -> zero or more, `'?'` -> exactly one) are allowed. Escape character is
-+      # backslash. Omitting is equivalent to `"*"`.
-+      optional string urlPattern
-+      # If set, only requests for matching resource types will be intercepted.
-+      optional Network.ResourceType resourceType
-+      # Stage at which to begin intercepting requests. Default is Request.
-+      optional RequestStage requestStage
-+
-+  # Response HTTP header entry
-+  type HeaderEntry extends object
-+    properties
-+      string name
-+      string value
-+
-+  # Authorization challenge for HTTP status code 401 or 407.
-+  type AuthChallenge extends object
-+    properties
-+      # Source of the authentication challenge.
-+      optional enum source
-+        Server
-+        Proxy
-+      # Origin of the challenger.
-+      string origin
-+      # The authentication scheme used, such as basic or digest
-+      string scheme
-+      # The realm of the challenge. May be empty.
-+      string realm
-+
-+  # Response to an AuthChallenge.
-+  type AuthChallengeResponse extends object
-+    properties
-+      # The decision on what to do in response to the authorization challenge.  Default means
-+      # deferring to the default behavior of the net stack, which will likely either the Cancel
-+      # authentication or display a popup dialog box.
-+      enum response
-+        Default
-+        CancelAuth
-+        ProvideCredentials
-+      # The username to provide, possibly empty. Should only be set if response is
-+      # ProvideCredentials.
-+      optional string username
-+      # The password to provide, possibly empty. Should only be set if response is
-+      # ProvideCredentials.
-+      optional string password
-+
-+  # Disables the fetch domain.
-+  command disable
-+
-+  # Enables issuing of requestPaused events. A request will be paused until client
-+  # calls one of failRequest, fulfillRequest or continueRequest/continueWithAuth.
-+  command enable
-+    parameters
-+      # If specified, only requests matching any of these patterns will produce
-+      # fetchRequested event and will be paused until clients response. If not set,
-+      # all requests will be affected.
-+      optional array of RequestPattern patterns
-+      # If true, authRequired events will be issued and requests will be paused
-+      # expecting a call to continueWithAuth.
-+      optional boolean handleAuthRequests
-+
-+  # Causes the request to fail with specified reason.
-+  command failRequest
-+    parameters
-+      # An id the client received in requestPaused event.
-+      RequestId requestId
-+      # Causes the request to fail with the given reason.
-+      Network.ErrorReason errorReason
-+
-+  # Provides response to the request.
-+  command fulfillRequest
-+    parameters
-+      # An id the client received in requestPaused event.
-+      RequestId requestId
-+      # An HTTP response code.
-+      integer responseCode
-+      # Response headers.
-+      optional array of HeaderEntry responseHeaders
-+      # Alternative way of specifying response headers as a \0-separated
-+      # series of name: value pairs. Prefer the above method unless you
-+      # need to represent some non-UTF8 values that can't be transmitted
-+      # over the protocol as text.
-+      optional binary binaryResponseHeaders
-+      # A response body. If absent, original response body will be used if
-+      # the request is intercepted at the response stage and empty body
-+      # will be used if the request is intercepted at the request stage.
-+      optional binary body
-+      # A textual representation of responseCode.
-+      # If absent, a standard phrase matching responseCode is used.
-+      optional string responsePhrase
-+
-+  # Continues the request, optionally modifying some of its parameters.
-+  command continueRequest
-+    parameters
-+      # An id the client received in requestPaused event.
-+      RequestId requestId
-+      # If set, the request url will be modified in a way that's not observable by page.
-+      optional string url
-+      # If set, the request method is overridden.
-+      optional string method
-+      # If set, overrides the post data in the request.
-+      optional binary postData
-+      # If set, overrides the request headers. Note that the overrides do not
-+      # extend to subsequent redirect hops, if a redirect happens. Another override
-+      # may be applied to a different request produced by a redirect.
-+      optional array of HeaderEntry headers
-+      # If set, overrides response interception behavior for this request.
-+      experimental optional boolean interceptResponse
-+
-+  # Continues a request supplying authChallengeResponse following authRequired event.
-+  command continueWithAuth
-+    parameters
-+      # An id the client received in authRequired event.
-+      RequestId requestId
-+      # Response to  with an authChallenge.
-+      AuthChallengeResponse authChallengeResponse
-+
-+  # Continues loading of the paused response, optionally modifying the
-+  # response headers. If either responseCode or headers are modified, all of them
-+  # must be present.
-+  experimental command continueResponse
-+    parameters
-+      # An id the client received in requestPaused event.
-+      RequestId requestId
-+      # An HTTP response code. If absent, original response code will be used.
-+      optional integer responseCode
-+      # A textual representation of responseCode.
-+      # If absent, a standard phrase matching responseCode is used.
-+      optional string responsePhrase
-+      # Response headers. If absent, original response headers will be used.
-+      optional array of HeaderEntry responseHeaders
-+      # Alternative way of specifying response headers as a \0-separated
-+      # series of name: value pairs. Prefer the above method unless you
-+      # need to represent some non-UTF8 values that can't be transmitted
-+      # over the protocol as text.
-+      optional binary binaryResponseHeaders
-+
-+  # Causes the body of the response to be received from the server and
-+  # returned as a single string. May only be issued for a request that
-+  # is paused in the Response stage and is mutually exclusive with
-+  # takeResponseBodyForInterceptionAsStream. Calling other methods that
-+  # affect the request or disabling fetch domain before body is received
-+  # results in an undefined behavior.
-+  # Note that the response body is not available for redirects. Requests
-+  # paused in the _redirect received_ state may be differentiated by
-+  # `responseCode` and presence of `location` response header, see
-+  # comments to `requestPaused` for details.
-+  command getResponseBody
-+    parameters
-+      # Identifier for the intercepted request to get body for.
-+      RequestId requestId
-+    returns
-+      # Response body.
-+      string body
-+      # True, if content was sent as base64.
-+      boolean base64Encoded
-+
-+  # Returns a handle to the stream representing the response body.
-+  # The request must be paused in the HeadersReceived stage.
-+  # Note that after this command the request can't be continued
-+  # as is -- client either needs to cancel it or to provide the
-+  # response body.
-+  # The stream only supports sequential read, IO.read will fail if the position
-+  # is specified.
-+  # This method is mutually exclusive with getResponseBody.
-+  # Calling other methods that affect the request or disabling fetch
-+  # domain before body is received results in an undefined behavior.
-+  command takeResponseBodyAsStream
-+    parameters
-+      RequestId requestId
-+    returns
-+      IO.StreamHandle stream
-+
-+  # Issued when the domain is enabled and the request URL matches the
-+  # specified filter. The request is paused until the client responds
-+  # with one of continueRequest, failRequest or fulfillRequest.
-+  # The stage of the request can be determined by presence of responseErrorReason
-+  # and responseStatusCode -- the request is at the response stage if either
-+  # of these fields is present and in the request stage otherwise.
-+  # Redirect responses and subsequent requests are reported similarly to regular
-+  # responses and requests. Redirect responses may be distinguished by the value
-+  # of `responseStatusCode` (which is one of 301, 302, 303, 307, 308) along with
-+  # presence of the `location` header. Requests resulting from a redirect will
-+  # have `redirectedRequestId` field set.
-+  event requestPaused
-+    parameters
-+      # Each request the page makes will have a unique id.
-+      RequestId requestId
-+      # The details of the request.
-+      Network.Request request
-+      # The id of the frame that initiated the request.
-+      Page.FrameId frameId
-+      # How the requested resource will be used.
-+      Network.ResourceType resourceType
-+      # Response error if intercepted at response stage.
-+      optional Network.ErrorReason responseErrorReason
-+      # Response code if intercepted at response stage.
-+      optional integer responseStatusCode
-+      # Response status text if intercepted at response stage.
-+      optional string responseStatusText
-+      # Response headers if intercepted at the response stage.
-+      optional array of HeaderEntry responseHeaders
-+      # If the intercepted request had a corresponding Network.requestWillBeSent event fired for it,
-+      # then this networkId will be the same as the requestId present in the requestWillBeSent event.
-+      optional Network.RequestId networkId
-+      # If the request is due to a redirect response from the server, the id of the request that
-+      # has caused the redirect.
-+      experimental optional RequestId redirectedRequestId
-+
-+  # Issued when the domain is enabled with handleAuthRequests set to true.
-+  # The request is paused until client responds with continueWithAuth.
-+  event authRequired
-+    parameters
-+      # Each request the page makes will have a unique id.
-+      RequestId requestId
-+      # The details of the request.
-+      Network.Request request
-+      # The id of the frame that initiated the request.
-+      Page.FrameId frameId
-+      # How the requested resource will be used.
-+      Network.ResourceType resourceType
-+      # Details of the Authorization Challenge encountered.
-+      # If this is set, client should respond with continueRequest that
-+      # contains AuthChallengeResponse.
-+      AuthChallenge authChallenge
-diff --git a/pdl/domains/FileSystem.pdl b/pdl/domains/FileSystem.pdl
-new file mode 100644
-index 00000000..4f495c00
---- /dev/null
-+++ b/pdl/domains/FileSystem.pdl
-@@ -0,0 +1,41 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain FileSystem
-+  depends on Network
-+  depends on Storage
-+
-+  type File extends object
-+    properties
-+      string name
-+      # Timestamp
-+      Network.TimeSinceEpoch lastModified
-+      # Size in bytes
-+      number size
-+      string type
-+
-+  type Directory extends object
-+    properties
-+      string name
-+      array of string nestedDirectories
-+      # Files that are directly nested under this directory.
-+      array of File nestedFiles
-+
-+  type BucketFileSystemLocator extends object
-+    properties
-+      # Storage key
-+      Storage.SerializedStorageKey storageKey
-+      # Bucket name. Not passing a `bucketName` will retrieve the default Bucket. (https://developer.mozilla.org/en-US/docs/Web/API/Storage_API#storage_buckets)
-+      optional string bucketName
-+      # Path to the directory using each path component as an array item.
-+      array of string pathComponents
-+
-+  command getDirectory
-+    parameters
-+      BucketFileSystemLocator bucketFileSystemLocator
-+    returns
-+      # Returns the directory object at the path.
-+      Directory directory
-diff --git a/pdl/domains/HeadlessExperimental.pdl b/pdl/domains/HeadlessExperimental.pdl
-new file mode 100644
-index 00000000..b67f57ac
---- /dev/null
-+++ b/pdl/domains/HeadlessExperimental.pdl
-@@ -0,0 +1,56 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain provides experimental commands only supported in headless mode.
-+experimental domain HeadlessExperimental
-+  depends on Page
-+  depends on Runtime
-+
-+  # Encoding options for a screenshot.
-+  type ScreenshotParams extends object
-+    properties
-+      # Image compression format (defaults to png).
-+      optional enum format
-+        jpeg
-+        png
-+        webp
-+      # Compression quality from range [0..100] (jpeg and webp only).
-+      optional integer quality
-+      # Optimize image encoding for speed, not for resulting size (defaults to false)
-+      optional boolean optimizeForSpeed
-+
-+  # Sends a BeginFrame to the target and returns when the frame was completed. Optionally captures a
-+  # screenshot from the resulting frame. Requires that the target was created with enabled
-+  # BeginFrameControl. Designed for use with --run-all-compositor-stages-before-draw, see also
-+  # https://goo.gle/chrome-headless-rendering for more background.
-+  command beginFrame
-+    parameters
-+      # Timestamp of this BeginFrame in Renderer TimeTicks (milliseconds of uptime). If not set,
-+      # the current time will be used.
-+      optional number frameTimeTicks
-+      # The interval between BeginFrames that is reported to the compositor, in milliseconds.
-+      # Defaults to a 60 frames/second interval, i.e. about 16.666 milliseconds.
-+      optional number interval
-+      # Whether updates should not be committed and drawn onto the display. False by default. If
-+      # true, only side effects of the BeginFrame will be run, such as layout and animations, but
-+      # any visual updates may not be visible on the display or in screenshots.
-+      optional boolean noDisplayUpdates
-+      # If set, a screenshot of the frame will be captured and returned in the response. Otherwise,
-+      # no screenshot will be captured. Note that capturing a screenshot can fail, for example,
-+      # during renderer initialization. In such a case, no screenshot data will be returned.
-+      optional ScreenshotParams screenshot
-+    returns
-+      # Whether the BeginFrame resulted in damage and, thus, a new frame was committed to the
-+      # display. Reported for diagnostic uses, may be removed in the future.
-+      boolean hasDamage
-+      # Base64-encoded image data of the screenshot, if one was requested and successfully taken.
-+      optional binary screenshotData
-+
-+  # Disables headless events for the target.
-+  deprecated command disable
-+
-+  # Enables headless events for the target.
-+  deprecated command enable
-diff --git a/pdl/domains/IO.pdl b/pdl/domains/IO.pdl
-new file mode 100644
-index 00000000..2f5bf657
---- /dev/null
-+++ b/pdl/domains/IO.pdl
-@@ -0,0 +1,45 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Input/Output operations for streams produced by DevTools.
-+domain IO
-+
-+  # This is either obtained from another method or specified as `blob:<uuid>` where
-+  # `<uuid>` is an UUID of a Blob.
-+  type StreamHandle extends string
-+
-+  # Close the stream, discard any temporary backing storage.
-+  command close
-+    parameters
-+      # Handle of the stream to close.
-+      StreamHandle handle
-+
-+  # Read a chunk of the stream
-+  command read
-+    parameters
-+      # Handle of the stream to read.
-+      StreamHandle handle
-+      # Seek to the specified offset before reading (if not specified, proceed with offset
-+      # following the last read). Some types of streams may only support sequential reads.
-+      optional integer offset
-+      # Maximum number of bytes to read (left upon the agent discretion if not specified).
-+      optional integer size
-+    returns
-+      # Set if the data is base64-encoded
-+      optional boolean base64Encoded
-+      # Data that were read.
-+      string data
-+      # Set if the end-of-file condition occurred while reading.
-+      boolean eof
-+
-+  # Return UUID of Blob object specified by a remote object id.
-+  command resolveBlob
-+    parameters
-+      # Object id of a Blob object wrapper.
-+      Runtime.RemoteObjectId objectId
-+    returns
-+      # UUID of the specified Blob.
-+      string uuid
-diff --git a/pdl/domains/IndexedDB.pdl b/pdl/domains/IndexedDB.pdl
-new file mode 100644
-index 00000000..9a03d95f
---- /dev/null
-+++ b/pdl/domains/IndexedDB.pdl
-@@ -0,0 +1,226 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain IndexedDB
-+  depends on Runtime
-+  depends on Storage
-+
-+  # Database with an array of object stores.
-+  type DatabaseWithObjectStores extends object
-+    properties
-+      # Database name.
-+      string name
-+      # Database version (type is not 'integer', as the standard
-+      # requires the version number to be 'unsigned long long')
-+      number version
-+      # Object stores in this database.
-+      array of ObjectStore objectStores
-+
-+  # Object store.
-+  type ObjectStore extends object
-+    properties
-+      # Object store name.
-+      string name
-+      # Object store key path.
-+      KeyPath keyPath
-+      # If true, object store has auto increment flag set.
-+      boolean autoIncrement
-+      # Indexes in this object store.
-+      array of ObjectStoreIndex indexes
-+
-+  # Object store index.
-+  type ObjectStoreIndex extends object
-+    properties
-+      # Index name.
-+      string name
-+      # Index key path.
-+      KeyPath keyPath
-+      # If true, index is unique.
-+      boolean unique
-+      # If true, index allows multiple entries for a key.
-+      boolean multiEntry
-+
-+  # Key.
-+  type Key extends object
-+    properties
-+      # Key type.
-+      enum type
-+        number
-+        string
-+        date
-+        array
-+      # Number value.
-+      optional number number
-+      # String value.
-+      optional string string
-+      # Date value.
-+      optional number date
-+      # Array value.
-+      optional array of Key array
-+
-+  # Key range.
-+  type KeyRange extends object
-+    properties
-+      # Lower bound.
-+      optional Key lower
-+      # Upper bound.
-+      optional Key upper
-+      # If true lower bound is open.
-+      boolean lowerOpen
-+      # If true upper bound is open.
-+      boolean upperOpen
-+
-+  # Data entry.
-+  type DataEntry extends object
-+    properties
-+      # Key object.
-+      Runtime.RemoteObject key
-+      # Primary key object.
-+      Runtime.RemoteObject primaryKey
-+      # Value object.
-+      Runtime.RemoteObject value
-+
-+  # Key path.
-+  type KeyPath extends object
-+    properties
-+      # Key path type.
-+      enum type
-+        null
-+        string
-+        array
-+      # String value.
-+      optional string string
-+      # Array value.
-+      optional array of string array
-+
-+  # Clears all entries from an object store.
-+  command clearObjectStore
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+      # Database name.
-+      string databaseName
-+      # Object store name.
-+      string objectStoreName
-+
-+  # Deletes a database.
-+  command deleteDatabase
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+      # Database name.
-+      string databaseName
-+
-+  # Delete a range of entries from an object store
-+  command deleteObjectStoreEntries
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+      string databaseName
-+      string objectStoreName
-+      # Range of entry keys to delete
-+      KeyRange keyRange
-+
-+  # Disables events from backend.
-+  command disable
-+
-+  # Enables events from backend.
-+  command enable
-+
-+  # Requests data from object store or index.
-+  command requestData
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+      # Database name.
-+      string databaseName
-+      # Object store name.
-+      string objectStoreName
-+      # Index name, empty string for object store data requests.
-+      string indexName
-+      # Number of records to skip.
-+      integer skipCount
-+      # Number of records to fetch.
-+      integer pageSize
-+      # Key range.
-+      optional KeyRange keyRange
-+    returns
-+      # Array of object store data entries.
-+      array of DataEntry objectStoreDataEntries
-+      # If true, there are more entries to fetch in the given range.
-+      boolean hasMore
-+
-+  # Gets metadata of an object store.
-+  command getMetadata
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+      # Database name.
-+      string databaseName
-+      # Object store name.
-+      string objectStoreName
-+    returns
-+      # the entries count
-+      number entriesCount
-+      # the current value of key generator, to become the next inserted
-+      # key into the object store. Valid if objectStore.autoIncrement
-+      # is true.
-+      number keyGeneratorValue
-+
-+  # Requests database with given name in given frame.
-+  command requestDatabase
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+      # Database name.
-+      string databaseName
-+    returns
-+      # Database with an array of object stores.
-+      DatabaseWithObjectStores databaseWithObjectStores
-+
-+  # Requests database names for given security origin.
-+  command requestDatabaseNames
-+    parameters
-+      # At least and at most one of securityOrigin, storageKey, or storageBucket must be specified.
-+      # Security origin.
-+      optional string securityOrigin
-+      # Storage key.
-+      optional string storageKey
-+      # Storage bucket. If not specified, it uses the default bucket.
-+      optional Storage.StorageBucket storageBucket
-+    returns
-+      # Database names for origin.
-+      array of string databaseNames
-diff --git a/pdl/domains/Input.pdl b/pdl/domains/Input.pdl
-new file mode 100644
-index 00000000..815bf7c4
---- /dev/null
-+++ b/pdl/domains/Input.pdl
-@@ -0,0 +1,336 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+domain Input
-+
-+  type TouchPoint extends object
-+    properties
-+      # X coordinate of the event relative to the main frame's viewport in CSS pixels.
-+      number x
-+      # Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
-+      # the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
-+      number y
-+      # X radius of the touch area (default: 1.0).
-+      optional number radiusX
-+      # Y radius of the touch area (default: 1.0).
-+      optional number radiusY
-+      # Rotation angle (default: 0.0).
-+      optional number rotationAngle
-+      # Force (default: 1.0).
-+      optional number force
-+      # The normalized tangential pressure, which has a range of [-1,1] (default: 0).
-+      experimental optional number tangentialPressure
-+      # The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0)
-+      optional number tiltX
-+      # The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).
-+      optional number tiltY
-+      # The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).
-+      experimental optional integer twist
-+      # Identifier used to track touch sources between events, must be unique within an event.
-+      optional number id
-+
-+  experimental type GestureSourceType extends string
-+    enum
-+      default
-+      touch
-+      mouse
-+
-+  type MouseButton extends string
-+    enum
-+        none
-+        left
-+        middle
-+        right
-+        back
-+        forward
-+
-+  # UTC time in seconds, counted from January 1, 1970.
-+  type TimeSinceEpoch extends number
-+
-+  experimental type DragDataItem extends object
-+    properties
-+      # Mime type of the dragged data.
-+      string mimeType
-+      # Depending of the value of `mimeType`, it contains the dragged link,
-+      # text, HTML markup or any other data.
-+      string data
-+
-+      # Title associated with a link. Only valid when `mimeType` == "text/uri-list".
-+      optional string title
-+
-+      # Stores the base URL for the contained markup. Only valid when `mimeType`
-+      # == "text/html".
-+      optional string baseURL
-+
-+
-+  experimental type DragData extends object
-+    properties
-+      array of DragDataItem items
-+      # List of filenames that should be included when dropping
-+      optional array of string files
-+      # Bit field representing allowed drag operations. Copy = 1, Link = 2, Move = 16
-+      integer dragOperationsMask
-+
-+  # Dispatches a drag event into the page.
-+  experimental command dispatchDragEvent
-+    parameters
-+      # Type of the drag event.
-+      enum type
-+        dragEnter
-+        dragOver
-+        drop
-+        dragCancel
-+      # X coordinate of the event relative to the main frame's viewport in CSS pixels.
-+      number x
-+      # Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
-+      # the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
-+      number y
-+      DragData data
-+      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
-+      # (default: 0).
-+      optional integer modifiers
-+
-+  # Dispatches a key event to the page.
-+  command dispatchKeyEvent
-+    parameters
-+      # Type of the key event.
-+      enum type
-+        keyDown
-+        keyUp
-+        rawKeyDown
-+        char
-+      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
-+      # (default: 0).
-+      optional integer modifiers
-+      # Time at which the event occurred.
-+      optional TimeSinceEpoch timestamp
-+      # Text as generated by processing a virtual key code with a keyboard layout. Not needed for
-+      # for `keyUp` and `rawKeyDown` events (default: "")
-+      optional string text
-+      # Text that would have been generated by the keyboard if no modifiers were pressed (except for
-+      # shift). Useful for shortcut (accelerator) key handling (default: "").
-+      optional string unmodifiedText
-+      # Unique key identifier (e.g., 'U+0041') (default: "").
-+      optional string keyIdentifier
-+      # Unique DOM defined string value for each physical key (e.g., 'KeyA') (default: "").
-+      optional string code
-+      # Unique DOM defined string value describing the meaning of the key in the context of active
-+      # modifiers, keyboard layout, etc (e.g., 'AltGr') (default: "").
-+      optional string key
-+      # Windows virtual key code (default: 0).
-+      optional integer windowsVirtualKeyCode
-+      # Native virtual key code (default: 0).
-+      optional integer nativeVirtualKeyCode
-+      # Whether the event was generated from auto repeat (default: false).
-+      optional boolean autoRepeat
-+      # Whether the event was generated from the keypad (default: false).
-+      optional boolean isKeypad
-+      # Whether the event was a system key event (default: false).
-+      optional boolean isSystemKey
-+      # Whether the event was from the left or right side of the keyboard. 1=Left, 2=Right (default:
-+      # 0).
-+      optional integer location
-+      # Editing commands to send with the key event (e.g., 'selectAll') (default: []).
-+      # These are related to but not equal the command names used in `document.execCommand` and NSStandardKeyBindingResponding.
-+      # See https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/editing/commands/editor_command_names.h for valid command names.
-+      experimental optional array of string commands
-+
-+  # This method emulates inserting text that doesn't come from a key press,
-+  # for example an emoji keyboard or an IME.
-+  experimental command insertText
-+    parameters
-+      # The text to insert.
-+      string text
-+
-+  # This method sets the current candidate text for IME.
-+  # Use imeCommitComposition to commit the final text.
-+  # Use imeSetComposition with empty string as text to cancel composition.
-+  experimental command imeSetComposition
-+    parameters
-+      # The text to insert
-+      string text
-+      # selection start
-+      integer selectionStart
-+      # selection end
-+      integer selectionEnd
-+      # replacement start
-+      optional integer replacementStart
-+      # replacement end
-+      optional integer replacementEnd
-+
-+  # Dispatches a mouse event to the page.
-+  command dispatchMouseEvent
-+    parameters
-+      # Type of the mouse event.
-+      enum type
-+        mousePressed
-+        mouseReleased
-+        mouseMoved
-+        mouseWheel
-+      # X coordinate of the event relative to the main frame's viewport in CSS pixels.
-+      number x
-+      # Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
-+      # the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
-+      number y
-+      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
-+      # (default: 0).
-+      optional integer modifiers
-+      # Time at which the event occurred.
-+      optional TimeSinceEpoch timestamp
-+      # Mouse button (default: "none").
-+      optional MouseButton button
-+      # A number indicating which buttons are pressed on the mouse when a mouse event is triggered.
-+      # Left=1, Right=2, Middle=4, Back=8, Forward=16, None=0.
-+      optional integer buttons
-+      # Number of times the mouse button was clicked (default: 0).
-+      optional integer clickCount
-+      # The normalized pressure, which has a range of [0,1] (default: 0).
-+      experimental optional number force
-+      # The normalized tangential pressure, which has a range of [-1,1] (default: 0).
-+      experimental optional number tangentialPressure
-+      # The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0).
-+      optional number tiltX
-+      # The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).
-+      optional number tiltY
-+      # The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).
-+      experimental optional integer twist
-+      # X delta in CSS pixels for mouse wheel event (default: 0).
-+      optional number deltaX
-+      # Y delta in CSS pixels for mouse wheel event (default: 0).
-+      optional number deltaY
-+      # Pointer type (default: "mouse").
-+      optional enum pointerType
-+        mouse
-+        pen
-+
-+  # Dispatches a touch event to the page.
-+  command dispatchTouchEvent
-+    parameters
-+      # Type of the touch event. TouchEnd and TouchCancel must not contain any touch points, while
-+      # TouchStart and TouchMove must contains at least one.
-+      enum type
-+        touchStart
-+        touchEnd
-+        touchMove
-+        touchCancel
-+      # Active touch points on the touch device. One event per any changed point (compared to
-+      # previous touch event in a sequence) is generated, emulating pressing/moving/releasing points
-+      # one by one.
-+      array of TouchPoint touchPoints
-+      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
-+      # (default: 0).
-+      optional integer modifiers
-+      # Time at which the event occurred.
-+      optional TimeSinceEpoch timestamp
-+
-+  # Cancels any active dragging in the page.
-+  command cancelDragging
-+
-+  # Emulates touch event from the mouse event parameters.
-+  experimental command emulateTouchFromMouseEvent
-+    parameters
-+      # Type of the mouse event.
-+      enum type
-+        mousePressed
-+        mouseReleased
-+        mouseMoved
-+        mouseWheel
-+      # X coordinate of the mouse pointer in DIP.
-+      integer x
-+      # Y coordinate of the mouse pointer in DIP.
-+      integer y
-+      # Mouse button. Only "none", "left", "right" are supported.
-+      MouseButton button
-+      # Time at which the event occurred (default: current time).
-+      optional TimeSinceEpoch timestamp
-+      # X delta in DIP for mouse wheel event (default: 0).
-+      optional number deltaX
-+      # Y delta in DIP for mouse wheel event (default: 0).
-+      optional number deltaY
-+      # Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
-+      # (default: 0).
-+      optional integer modifiers
-+      # Number of times the mouse button was clicked (default: 0).
-+      optional integer clickCount
-+
-+  # Ignores input events (useful while auditing page).
-+  command setIgnoreInputEvents
-+    parameters
-+      # Ignores input events processing when set to true.
-+      boolean ignore
-+
-+  # Prevents default drag and drop behavior and instead emits `Input.dragIntercepted` events.
-+  # Drag and drop behavior can be directly controlled via `Input.dispatchDragEvent`.
-+  experimental command setInterceptDrags
-+    parameters
-+      boolean enabled
-+
-+  # Synthesizes a pinch gesture over a time period by issuing appropriate touch events.
-+  experimental command synthesizePinchGesture
-+    parameters
-+      # X coordinate of the start of the gesture in CSS pixels.
-+      number x
-+      # Y coordinate of the start of the gesture in CSS pixels.
-+      number y
-+      # Relative scale factor after zooming (>1.0 zooms in, <1.0 zooms out).
-+      number scaleFactor
-+      # Relative pointer speed in pixels per second (default: 800).
-+      optional integer relativeSpeed
-+      # Which type of input events to be generated (default: 'default', which queries the platform
-+      # for the preferred input type).
-+      optional GestureSourceType gestureSourceType
-+
-+  # Synthesizes a scroll gesture over a time period by issuing appropriate touch events.
-+  experimental command synthesizeScrollGesture
-+    parameters
-+      # X coordinate of the start of the gesture in CSS pixels.
-+      number x
-+      # Y coordinate of the start of the gesture in CSS pixels.
-+      number y
-+      # The distance to scroll along the X axis (positive to scroll left).
-+      optional number xDistance
-+      # The distance to scroll along the Y axis (positive to scroll up).
-+      optional number yDistance
-+      # The number of additional pixels to scroll back along the X axis, in addition to the given
-+      # distance.
-+      optional number xOverscroll
-+      # The number of additional pixels to scroll back along the Y axis, in addition to the given
-+      # distance.
-+      optional number yOverscroll
-+      # Prevent fling (default: true).
-+      optional boolean preventFling
-+      # Swipe speed in pixels per second (default: 800).
-+      optional integer speed
-+      # Which type of input events to be generated (default: 'default', which queries the platform
-+      # for the preferred input type).
-+      optional GestureSourceType gestureSourceType
-+      # The number of times to repeat the gesture (default: 0).
-+      optional integer repeatCount
-+      # The number of milliseconds delay between each repeat. (default: 250).
-+      optional integer repeatDelayMs
-+      # The name of the interaction markers to generate, if not empty (default: "").
-+      optional string interactionMarkerName
-+
-+  # Synthesizes a tap gesture over a time period by issuing appropriate touch events.
-+  experimental command synthesizeTapGesture
-+    parameters
-+      # X coordinate of the start of the gesture in CSS pixels.
-+      number x
-+      # Y coordinate of the start of the gesture in CSS pixels.
-+      number y
-+      # Duration between touchdown and touchup events in ms (default: 50).
-+      optional integer duration
-+      # Number of times to perform the tap (e.g. 2 for double tap, default: 1).
-+      optional integer tapCount
-+      # Which type of input events to be generated (default: 'default', which queries the platform
-+      # for the preferred input type).
-+      optional GestureSourceType gestureSourceType
-+
-+  # Emitted only when `Input.setInterceptDrags` is enabled. Use this data with `Input.dispatchDragEvent` to
-+  # restore normal drag and drop behavior.
-+  experimental event dragIntercepted
-+    parameters
-+      DragData data
-diff --git a/pdl/domains/Inspector.pdl b/pdl/domains/Inspector.pdl
-new file mode 100644
-index 00000000..501fb5bd
---- /dev/null
-+++ b/pdl/domains/Inspector.pdl
-@@ -0,0 +1,25 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain Inspector
-+
-+  # Disables inspector domain notifications.
-+  command disable
-+
-+  # Enables inspector domain notifications.
-+  command enable
-+
-+  # Fired when remote debugging connection is about to be terminated. Contains detach reason.
-+  event detached
-+    parameters
-+      # The reason why connection has been terminated.
-+      string reason
-+
-+  # Fired when debugging target has crashed
-+  event targetCrashed
-+
-+  # Fired when debugging target has reloaded after crash
-+  event targetReloadedAfterCrash
-diff --git a/pdl/domains/LayerTree.pdl b/pdl/domains/LayerTree.pdl
-new file mode 100644
-index 00000000..f4609b80
---- /dev/null
-+++ b/pdl/domains/LayerTree.pdl
-@@ -0,0 +1,178 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain LayerTree
-+  depends on DOM
-+
-+  # Unique Layer identifier.
-+  type LayerId extends string
-+
-+  # Unique snapshot identifier.
-+  type SnapshotId extends string
-+
-+  # Rectangle where scrolling happens on the main thread.
-+  type ScrollRect extends object
-+    properties
-+      # Rectangle itself.
-+      DOM.Rect rect
-+      # Reason for rectangle to force scrolling on the main thread
-+      enum type
-+        RepaintsOnScroll
-+        TouchEventHandler
-+        WheelEventHandler
-+
-+  # Sticky position constraints.
-+  type StickyPositionConstraint extends object
-+    properties
-+      # Layout rectangle of the sticky element before being shifted
-+      DOM.Rect stickyBoxRect
-+      # Layout rectangle of the containing block of the sticky element
-+      DOM.Rect containingBlockRect
-+      # The nearest sticky layer that shifts the sticky box
-+      optional LayerId nearestLayerShiftingStickyBox
-+      # The nearest sticky layer that shifts the containing block
-+      optional LayerId nearestLayerShiftingContainingBlock
-+
-+  # Serialized fragment of layer picture along with its offset within the layer.
-+  type PictureTile extends object
-+    properties
-+      # Offset from owning layer left boundary
-+      number x
-+      # Offset from owning layer top boundary
-+      number y
-+      # Base64-encoded snapshot data.
-+      binary picture
-+
-+  # Information about a compositing layer.
-+  type Layer extends object
-+    properties
-+      # The unique id for this layer.
-+      LayerId layerId
-+      # The id of parent (not present for root).
-+      optional LayerId parentLayerId
-+      # The backend id for the node associated with this layer.
-+      optional DOM.BackendNodeId backendNodeId
-+      # Offset from parent layer, X coordinate.
-+      number offsetX
-+      # Offset from parent layer, Y coordinate.
-+      number offsetY
-+      # Layer width.
-+      number width
-+      # Layer height.
-+      number height
-+      # Transformation matrix for layer, default is identity matrix
-+      optional array of number transform
-+      # Transform anchor point X, absent if no transform specified
-+      optional number anchorX
-+      # Transform anchor point Y, absent if no transform specified
-+      optional number anchorY
-+      # Transform anchor point Z, absent if no transform specified
-+      optional number anchorZ
-+      # Indicates how many time this layer has painted.
-+      integer paintCount
-+      # Indicates whether this layer hosts any content, rather than being used for
-+      # transform/scrolling purposes only.
-+      boolean drawsContent
-+      # Set if layer is not visible.
-+      optional boolean invisible
-+      # Rectangles scrolling on main thread only.
-+      optional array of ScrollRect scrollRects
-+      # Sticky position constraint information
-+      optional StickyPositionConstraint stickyPositionConstraint
-+
-+  # Array of timings, one per paint step.
-+  type PaintProfile extends array of number
-+
-+  # Provides the reasons why the given layer was composited.
-+  command compositingReasons
-+    parameters
-+      # The id of the layer for which we want to get the reasons it was composited.
-+      LayerId layerId
-+    returns
-+      # A list of strings specifying reasons for the given layer to become composited.
-+      array of string compositingReasons
-+      # A list of strings specifying reason IDs for the given layer to become composited.
-+      array of string compositingReasonIds
-+
-+  # Disables compositing tree inspection.
-+  command disable
-+
-+  # Enables compositing tree inspection.
-+  command enable
-+
-+  # Returns the snapshot identifier.
-+  command loadSnapshot
-+    parameters
-+      # An array of tiles composing the snapshot.
-+      array of PictureTile tiles
-+    returns
-+      # The id of the snapshot.
-+      SnapshotId snapshotId
-+
-+  # Returns the layer snapshot identifier.
-+  command makeSnapshot
-+    parameters
-+      # The id of the layer.
-+      LayerId layerId
-+    returns
-+      # The id of the layer snapshot.
-+      SnapshotId snapshotId
-+
-+  command profileSnapshot
-+    parameters
-+      # The id of the layer snapshot.
-+      SnapshotId snapshotId
-+      # The maximum number of times to replay the snapshot (1, if not specified).
-+      optional integer minRepeatCount
-+      # The minimum duration (in seconds) to replay the snapshot.
-+      optional number minDuration
-+      # The clip rectangle to apply when replaying the snapshot.
-+      optional DOM.Rect clipRect
-+    returns
-+      # The array of paint profiles, one per run.
-+      array of PaintProfile timings
-+
-+  # Releases layer snapshot captured by the back-end.
-+  command releaseSnapshot
-+    parameters
-+      # The id of the layer snapshot.
-+      SnapshotId snapshotId
-+
-+  # Replays the layer snapshot and returns the resulting bitmap.
-+  command replaySnapshot
-+    parameters
-+      # The id of the layer snapshot.
-+      SnapshotId snapshotId
-+      # The first step to replay from (replay from the very start if not specified).
-+      optional integer fromStep
-+      # The last step to replay to (replay till the end if not specified).
-+      optional integer toStep
-+      # The scale to apply while replaying (defaults to 1).
-+      optional number scale
-+    returns
-+      # A data: URL for resulting image.
-+      string dataURL
-+
-+  # Replays the layer snapshot and returns canvas log.
-+  command snapshotCommandLog
-+    parameters
-+      # The id of the layer snapshot.
-+      SnapshotId snapshotId
-+    returns
-+      # The array of canvas function calls.
-+      array of object commandLog
-+
-+  event layerPainted
-+    parameters
-+      # The id of the painted layer.
-+      LayerId layerId
-+      # Clip rectangle.
-+      DOM.Rect clip
-+
-+  event layerTreeDidChange
-+    parameters
-+      # Layer tree, absent if not in the compositing mode.
-+      optional array of Layer layers
-diff --git a/pdl/domains/Log.pdl b/pdl/domains/Log.pdl
-new file mode 100644
-index 00000000..55cb7d21
---- /dev/null
-+++ b/pdl/domains/Log.pdl
-@@ -0,0 +1,93 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Provides access to log entries.
-+domain Log
-+  depends on Runtime
-+  depends on Network
-+
-+  # Log entry.
-+  type LogEntry extends object
-+    properties
-+      # Log entry source.
-+      enum source
-+        xml
-+        javascript
-+        network
-+        storage
-+        appcache
-+        rendering
-+        security
-+        deprecation
-+        worker
-+        violation
-+        intervention
-+        recommendation
-+        other
-+      # Log entry severity.
-+      enum level
-+        verbose
-+        info
-+        warning
-+        error
-+      # Logged text.
-+      string text
-+      optional enum category
-+        cors
-+      # Timestamp when this entry was added.
-+      Runtime.Timestamp timestamp
-+      # URL of the resource if known.
-+      optional string url
-+      # Line number in the resource.
-+      optional integer lineNumber
-+      # JavaScript stack trace.
-+      optional Runtime.StackTrace stackTrace
-+      # Identifier of the network request associated with this entry.
-+      optional Network.RequestId networkRequestId
-+      # Identifier of the worker associated with this entry.
-+      optional string workerId
-+      # Call arguments.
-+      optional array of Runtime.RemoteObject args
-+
-+  # Violation configuration setting.
-+  type ViolationSetting extends object
-+    properties
-+      # Violation type.
-+      enum name
-+        longTask
-+        longLayout
-+        blockedEvent
-+        blockedParser
-+        discouragedAPIUse
-+        handler
-+        recurringHandler
-+      # Time threshold to trigger upon.
-+      number threshold
-+
-+  # Clears the log.
-+  command clear
-+
-+  # Disables log domain, prevents further log entries from being reported to the client.
-+  command disable
-+
-+  # Enables log domain, sends the entries collected so far to the client by means of the
-+  # `entryAdded` notification.
-+  command enable
-+
-+  # start violation reporting.
-+  command startViolationsReport
-+    parameters
-+      # Configuration for violations.
-+      array of ViolationSetting config
-+
-+  # Stop violation reporting.
-+  command stopViolationsReport
-+
-+  # Issued when new message was logged.
-+  event entryAdded
-+    parameters
-+      # The entry.
-+      LogEntry entry
-diff --git a/pdl/domains/Media.pdl b/pdl/domains/Media.pdl
-new file mode 100644
-index 00000000..844e2a94
---- /dev/null
-+++ b/pdl/domains/Media.pdl
-@@ -0,0 +1,106 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain allows detailed inspection of media elements.
-+experimental domain Media
-+
-+  # Players will get an ID that is unique within the agent context.
-+  type PlayerId extends string
-+
-+  type Timestamp extends number
-+
-+  # Have one type per entry in MediaLogRecord::Type
-+  # Corresponds to kMessage
-+  type PlayerMessage extends object
-+    properties
-+      # Keep in sync with MediaLogMessageLevel
-+      # We are currently keeping the message level 'error' separate from the
-+      # PlayerError type because right now they represent different things,
-+      # this one being a DVLOG(ERROR) style log message that gets printed
-+      # based on what log level is selected in the UI, and the other is a
-+      # representation of a media::PipelineStatus object. Soon however we're
-+      # going to be moving away from using PipelineStatus for errors and
-+      # introducing a new error type which should hopefully let us integrate
-+      # the error log level into the PlayerError type.
-+      enum level
-+        error
-+        warning
-+        info
-+        debug
-+      string message
-+
-+  # Corresponds to kMediaPropertyChange
-+  type PlayerProperty extends object
-+    properties
-+      string name
-+      string value
-+
-+  # Corresponds to kMediaEventTriggered
-+  type PlayerEvent extends object
-+    properties
-+      Timestamp timestamp
-+      string value
-+
-+  # Represents logged source line numbers reported in an error.
-+  # NOTE: file and line are from chromium c++ implementation code, not js.
-+  type PlayerErrorSourceLocation extends object
-+    properties
-+      string file
-+      integer line
-+
-+  # Corresponds to kMediaError
-+  type PlayerError extends object
-+    properties
-+      string errorType
-+      # Code is the numeric enum entry for a specific set of error codes, such
-+      # as PipelineStatusCodes in media/base/pipeline_status.h
-+      integer code
-+      # A trace of where this error was caused / where it passed through.
-+      array of PlayerErrorSourceLocation stack
-+      # Errors potentially have a root cause error, ie, a DecoderError might be
-+      # caused by an WindowsError
-+      array of PlayerError cause
-+      # Extra data attached to an error, such as an HRESULT, Video Codec, etc.
-+      object data
-+
-+  # This can be called multiple times, and can be used to set / override /
-+  # remove player properties. A null propValue indicates removal.
-+  event playerPropertiesChanged
-+    parameters
-+      PlayerId playerId
-+      array of PlayerProperty properties
-+
-+  # Send events as a list, allowing them to be batched on the browser for less
-+  # congestion. If batched, events must ALWAYS be in chronological order.
-+  event playerEventsAdded
-+    parameters
-+      PlayerId playerId
-+      array of PlayerEvent events
-+
-+  # Send a list of any messages that need to be delivered.
-+  event playerMessagesLogged
-+    parameters
-+      PlayerId playerId
-+      array of PlayerMessage messages
-+
-+  # Send a list of any errors that need to be delivered.
-+  event playerErrorsRaised
-+    parameters
-+      PlayerId playerId
-+      array of PlayerError errors
-+
-+  # Called whenever a player is created, or when a new agent joins and receives
-+  # a list of active players. If an agent is restored, it will receive the full
-+  # list of player ids and all events again.
-+  event playersCreated
-+    parameters
-+      array of PlayerId players
-+
-+  # Enables the Media domain
-+  command enable
-+
-+  # Disables the Media domain.
-+  command disable
-diff --git a/pdl/domains/Memory.pdl b/pdl/domains/Memory.pdl
-new file mode 100644
-index 00000000..b86b06c6
---- /dev/null
-+++ b/pdl/domains/Memory.pdl
-@@ -0,0 +1,112 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain Memory
-+
-+  # Memory pressure level.
-+  type PressureLevel extends string
-+    enum
-+      moderate
-+      critical
-+
-+  # Retruns current DOM object counters.
-+  command getDOMCounters
-+    returns
-+      integer documents
-+      integer nodes
-+      integer jsEventListeners
-+
-+  # Retruns DOM object counters after preparing renderer for leak detection.
-+  command getDOMCountersForLeakDetection
-+    returns
-+      # DOM object counters.
-+      array of DOMCounter counters
-+
-+  # Prepares for leak detection by terminating workers, stopping spellcheckers,
-+  # dropping non-essential internal caches, running garbage collections, etc.
-+  command prepareForLeakDetection
-+
-+  # Simulate OomIntervention by purging V8 memory.
-+  command forciblyPurgeJavaScriptMemory
-+
-+  # Enable/disable suppressing memory pressure notifications in all processes.
-+  command setPressureNotificationsSuppressed
-+    parameters
-+      # If true, memory pressure notifications will be suppressed.
-+      boolean suppressed
-+
-+  # Simulate a memory pressure notification in all processes.
-+  command simulatePressureNotification
-+    parameters
-+      # Memory pressure level of the notification.
-+      PressureLevel level
-+
-+  # Start collecting native memory profile.
-+  command startSampling
-+    parameters
-+      # Average number of bytes between samples.
-+      optional integer samplingInterval
-+      # Do not randomize intervals between samples.
-+      optional boolean suppressRandomness
-+
-+  # Stop collecting native memory profile.
-+  command stopSampling
-+
-+  # Retrieve native memory allocations profile
-+  # collected since renderer process startup.
-+  command getAllTimeSamplingProfile
-+    returns
-+      SamplingProfile profile
-+
-+  # Retrieve native memory allocations profile
-+  # collected since browser process startup.
-+  command getBrowserSamplingProfile
-+    returns
-+      SamplingProfile profile
-+
-+  # Retrieve native memory allocations profile collected since last
-+  # `startSampling` call.
-+  command getSamplingProfile
-+    returns
-+      SamplingProfile profile
-+
-+  # Heap profile sample.
-+  type SamplingProfileNode extends object
-+    properties
-+      # Size of the sampled allocation.
-+      number size
-+      # Total bytes attributed to this sample.
-+      number total
-+      # Execution stack at the point of allocation.
-+      array of string stack
-+
-+  # Array of heap profile samples.
-+  type SamplingProfile extends object
-+    properties
-+      array of SamplingProfileNode samples
-+      array of Module modules
-+
-+  # Executable module information
-+  type Module extends object
-+    properties
-+      # Name of the module.
-+      string name
-+      # UUID of the module.
-+      string uuid
-+      # Base address where the module is loaded into memory. Encoded as a decimal
-+      # or hexadecimal (0x prefixed) string.
-+      string baseAddress
-+      # Size of the module in bytes.
-+      number size
-+
-+  # DOM object counter data.
-+  type DOMCounter extends object
-+    properties
-+      # Object name. Note: object names should be presumed volatile and clients should not expect
-+      # the returned names to be consistent across runs.
-+      string name
-+      # Object count.
-+      integer count
-diff --git a/pdl/domains/Network.pdl b/pdl/domains/Network.pdl
-new file mode 100644
-index 00000000..fca59cc7
---- /dev/null
-+++ b/pdl/domains/Network.pdl
-@@ -0,0 +1,2039 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Network domain allows tracking network activities of the page. It exposes information about http,
-+# file, data and other requests and responses, their headers, bodies, timing, etc.
-+domain Network
-+  depends on Debugger
-+  depends on Runtime
-+  depends on Security
-+
-+  # Resource type as it was perceived by the rendering engine.
-+  type ResourceType extends string
-+    enum
-+      Document
-+      Stylesheet
-+      Image
-+      Media
-+      Font
-+      Script
-+      TextTrack
-+      XHR
-+      Fetch
-+      Prefetch
-+      EventSource
-+      WebSocket
-+      Manifest
-+      SignedExchange
-+      Ping
-+      CSPViolationReport
-+      Preflight
-+      FedCM
-+      Other
-+
-+  # Unique loader identifier.
-+  type LoaderId extends string
-+
-+  # Unique network request identifier.
-+  # Note that this does not identify individual HTTP requests that are part of
-+  # a network request.
-+  type RequestId extends string
-+
-+  # Unique intercepted request identifier.
-+  type InterceptionId extends string
-+
-+  # Network level fetch failure reason.
-+  type ErrorReason extends string
-+    enum
-+      Failed
-+      Aborted
-+      TimedOut
-+      AccessDenied
-+      ConnectionClosed
-+      ConnectionReset
-+      ConnectionRefused
-+      ConnectionAborted
-+      ConnectionFailed
-+      NameNotResolved
-+      InternetDisconnected
-+      AddressUnreachable
-+      BlockedByClient
-+      BlockedByResponse
-+
-+  # UTC time in seconds, counted from January 1, 1970.
-+  type TimeSinceEpoch extends number
-+
-+  # Monotonically increasing time in seconds since an arbitrary point in the past.
-+  type MonotonicTime extends number
-+
-+  # Request / response headers as keys / values of JSON object.
-+  type Headers extends object
-+
-+  # The underlying connection technology that the browser is supposedly using.
-+  type ConnectionType extends string
-+    enum
-+      none
-+      cellular2g
-+      cellular3g
-+      cellular4g
-+      bluetooth
-+      ethernet
-+      wifi
-+      wimax
-+      other
-+
-+  # Represents the cookie's 'SameSite' status:
-+  # https://tools.ietf.org/html/draft-west-first-party-cookies
-+  type CookieSameSite extends string
-+    enum
-+      Strict
-+      Lax
-+      None
-+
-+  # Represents the cookie's 'Priority' status:
-+  # https://tools.ietf.org/html/draft-west-cookie-priority-00
-+  experimental type CookiePriority extends string
-+    enum
-+      Low
-+      Medium
-+      High
-+
-+  # Represents the source scheme of the origin that originally set the cookie.
-+  # A value of "Unset" allows protocol clients to emulate legacy cookie scope for the scheme.
-+  # This is a temporary ability and it will be removed in the future.
-+  experimental type CookieSourceScheme extends string
-+    enum
-+      Unset
-+      NonSecure
-+      Secure
-+
-+  # Timing information for the request.
-+  type ResourceTiming extends object
-+    properties
-+      # Timing's requestTime is a baseline in seconds, while the other numbers are ticks in
-+      # milliseconds relatively to this requestTime.
-+      number requestTime
-+      # Started resolving proxy.
-+      number proxyStart
-+      # Finished resolving proxy.
-+      number proxyEnd
-+      # Started DNS address resolve.
-+      number dnsStart
-+      # Finished DNS address resolve.
-+      number dnsEnd
-+      # Started connecting to the remote host.
-+      number connectStart
-+      # Connected to the remote host.
-+      number connectEnd
-+      # Started SSL handshake.
-+      number sslStart
-+      # Finished SSL handshake.
-+      number sslEnd
-+      # Started running ServiceWorker.
-+      experimental number workerStart
-+      # Finished Starting ServiceWorker.
-+      experimental number workerReady
-+      # Started fetch event.
-+      experimental number workerFetchStart
-+      # Settled fetch event respondWith promise.
-+      experimental number workerRespondWithSettled
-+      # Started ServiceWorker static routing source evaluation.
-+      experimental optional number workerRouterEvaluationStart
-+      # Started cache lookup when the source was evaluated to `cache`.
-+      experimental optional number workerCacheLookupStart
-+      # Started sending request.
-+      number sendStart
-+      # Finished sending request.
-+      number sendEnd
-+      # Time the server started pushing request.
-+      experimental number pushStart
-+      # Time the server finished pushing request.
-+      experimental number pushEnd
-+      # Started receiving response headers.
-+      experimental number receiveHeadersStart
-+      # Finished receiving response headers.
-+      number receiveHeadersEnd
-+
-+  # Loading priority of a resource request.
-+  type ResourcePriority extends string
-+    enum
-+      VeryLow
-+      Low
-+      Medium
-+      High
-+      VeryHigh
-+
-+  # Post data entry for HTTP request
-+  type PostDataEntry extends object
-+    properties
-+      optional binary bytes
-+
-+  # HTTP request data.
-+  type Request extends object
-+    properties
-+      # Request URL (without fragment).
-+      string url
-+      # Fragment of the requested URL starting with hash, if present.
-+      optional string urlFragment
-+      # HTTP request method.
-+      string method
-+      # HTTP request headers.
-+      Headers headers
-+      # HTTP POST request data.
-+      # Use postDataEntries instead.
-+      deprecated optional string postData
-+      # True when the request has POST data. Note that postData might still be omitted when this flag is true when the data is too long.
-+      optional boolean hasPostData
-+      # Request body elements (post data broken into individual entries).
-+      experimental optional array of PostDataEntry postDataEntries
-+      # The mixed content type of the request.
-+      optional Security.MixedContentType mixedContentType
-+      # Priority of the resource request at the time request is sent.
-+      ResourcePriority initialPriority
-+      # The referrer policy of the request, as defined in https://www.w3.org/TR/referrer-policy/
-+      enum referrerPolicy
-+        unsafe-url
-+        no-referrer-when-downgrade
-+        no-referrer
-+        origin
-+        origin-when-cross-origin
-+        same-origin
-+        strict-origin
-+        strict-origin-when-cross-origin
-+      # Whether is loaded via link preload.
-+      optional boolean isLinkPreload
-+      # Set for requests when the TrustToken API is used. Contains the parameters
-+      # passed by the developer (e.g. via "fetch") as understood by the backend.
-+      experimental optional TrustTokenParams trustTokenParams
-+      # True if this resource request is considered to be the 'same site' as the
-+      # request corresponding to the main frame.
-+      experimental optional boolean isSameSite
-+
-+  # Details of a signed certificate timestamp (SCT).
-+  type SignedCertificateTimestamp extends object
-+    properties
-+      # Validation status.
-+      string status
-+      # Origin.
-+      string origin
-+      # Log name / description.
-+      string logDescription
-+      # Log ID.
-+      string logId
-+      # Issuance date. Unlike TimeSinceEpoch, this contains the number of
-+      # milliseconds since January 1, 1970, UTC, not the number of seconds.
-+      number timestamp
-+      # Hash algorithm.
-+      string hashAlgorithm
-+      # Signature algorithm.
-+      string signatureAlgorithm
-+      # Signature data.
-+      string signatureData
-+
-+  # Security details about a request.
-+  type SecurityDetails extends object
-+    properties
-+      # Protocol name (e.g. "TLS 1.2" or "QUIC").
-+      string protocol
-+      # Key Exchange used by the connection, or the empty string if not applicable.
-+      string keyExchange
-+      # (EC)DH group used by the connection, if applicable.
-+      optional string keyExchangeGroup
-+      # Cipher name.
-+      string cipher
-+      # TLS MAC. Note that AEAD ciphers do not have separate MACs.
-+      optional string mac
-+      # Certificate ID value.
-+      Security.CertificateId certificateId
-+      # Certificate subject name.
-+      string subjectName
-+      # Subject Alternative Name (SAN) DNS names and IP addresses.
-+      array of string sanList
-+      # Name of the issuing CA.
-+      string issuer
-+      # Certificate valid from date.
-+      TimeSinceEpoch validFrom
-+      # Certificate valid to (expiration) date
-+      TimeSinceEpoch validTo
-+      # List of signed certificate timestamps (SCTs).
-+      array of SignedCertificateTimestamp signedCertificateTimestampList
-+      # Whether the request complied with Certificate Transparency policy
-+      CertificateTransparencyCompliance certificateTransparencyCompliance
-+      # The signature algorithm used by the server in the TLS server signature,
-+      # represented as a TLS SignatureScheme code point. Omitted if not
-+      # applicable or not known.
-+      optional integer serverSignatureAlgorithm
-+      # Whether the connection used Encrypted ClientHello
-+      boolean encryptedClientHello
-+
-+  # Whether the request complied with Certificate Transparency policy.
-+  type CertificateTransparencyCompliance extends string
-+    enum
-+      unknown
-+      not-compliant
-+      compliant
-+
-+  # The reason why request was blocked.
-+  type BlockedReason extends string
-+    enum
-+      other
-+      csp
-+      mixed-content
-+      origin
-+      inspector
-+      integrity
-+      subresource-filter
-+      content-type
-+      coep-frame-resource-needs-coep-header
-+      coop-sandboxed-iframe-cannot-navigate-to-coop-page
-+      corp-not-same-origin
-+      corp-not-same-origin-after-defaulted-to-same-origin-by-coep
-+      corp-not-same-origin-after-defaulted-to-same-origin-by-dip
-+      corp-not-same-origin-after-defaulted-to-same-origin-by-coep-and-dip
-+      corp-not-same-site
-+      sri-message-signature-mismatch
-+
-+  # The reason why request was blocked.
-+  type CorsError extends string
-+    enum
-+      DisallowedByMode
-+      InvalidResponse
-+      WildcardOriginNotAllowed
-+      MissingAllowOriginHeader
-+      MultipleAllowOriginValues
-+      InvalidAllowOriginValue
-+      AllowOriginMismatch
-+      InvalidAllowCredentials
-+      CorsDisabledScheme
-+      PreflightInvalidStatus
-+      PreflightDisallowedRedirect
-+      PreflightWildcardOriginNotAllowed
-+      PreflightMissingAllowOriginHeader
-+      PreflightMultipleAllowOriginValues
-+      PreflightInvalidAllowOriginValue
-+      PreflightAllowOriginMismatch
-+      PreflightInvalidAllowCredentials
-+      # TODO(https://crbug.com/1263483): Remove this once frontend code does
-+      # not reference it anymore.
-+      PreflightMissingAllowExternal
-+      # TODO(https://crbug.com/1263483): Remove this once frontend code does
-+      # not reference it anymore.
-+      PreflightInvalidAllowExternal
-+      PreflightMissingAllowPrivateNetwork
-+      PreflightInvalidAllowPrivateNetwork
-+      InvalidAllowMethodsPreflightResponse
-+      InvalidAllowHeadersPreflightResponse
-+      MethodDisallowedByPreflightResponse
-+      HeaderDisallowedByPreflightResponse
-+      RedirectContainsCredentials
-+      # Request was a private network request initiated by a non-secure context.
-+      InsecurePrivateNetwork
-+      # Request carried a target IP address space property that did not match
-+      # the target resource's address space.
-+      InvalidPrivateNetworkAccess
-+      # Request was a private network request yet did not carry a target IP
-+      # address space.
-+      UnexpectedPrivateNetworkAccess
-+      NoCorsRedirectModeNotFollow
-+      # Request was a private network request and needed user permission yet did
-+      # not carry `Private-Network-Access-Id` in the preflight response.
-+      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
-+      PreflightMissingPrivateNetworkAccessId
-+      # Request was a private network request and needed user permission yet did
-+      # not carry `Private-Network-Access-Name` in the preflight response.
-+      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
-+      PreflightMissingPrivateNetworkAccessName
-+      # Request was a private network request and needed user permission yet not
-+      # able to request for permission.
-+      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
-+      PrivateNetworkAccessPermissionUnavailable
-+      # Request was a private network request and is denied by user permission.
-+      # https://github.com/WICG/private-network-access/blob/main/permission_prompt/explainer.md
-+      PrivateNetworkAccessPermissionDenied
-+      # Request was a local network request and is denied by user permission.
-+      # https://wicg.github.io/local-network-access/
-+      LocalNetworkAccessPermissionDenied
-+
-+  type CorsErrorStatus extends object
-+    properties
-+      CorsError corsError
-+      string failedParameter
-+
-+  # Source of serviceworker response.
-+  type ServiceWorkerResponseSource extends string
-+    enum
-+      cache-storage
-+      http-cache
-+      fallback-code
-+      network
-+
-+  # Determines what type of Trust Token operation is executed and
-+  # depending on the type, some additional parameters. The values
-+  # are specified in third_party/blink/renderer/core/fetch/trust_token.idl.
-+  experimental type TrustTokenParams extends object
-+    properties
-+      TrustTokenOperationType operation
-+
-+      # Only set for "token-redemption" operation and determine whether
-+      # to request a fresh SRR or use a still valid cached SRR.
-+      enum refreshPolicy
-+        UseCached
-+        Refresh
-+
-+      # Origins of issuers from whom to request tokens or redemption
-+      # records.
-+      optional array of string issuers
-+
-+  experimental type TrustTokenOperationType extends string
-+    enum
-+      # Type "token-request" in the Trust Token API.
-+      Issuance
-+      # Type "token-redemption" in the Trust Token API.
-+      Redemption
-+      # Type "send-redemption-record" in the Trust Token API.
-+      Signing
-+
-+  # The reason why Chrome uses a specific transport protocol for HTTP semantics.
-+  experimental type AlternateProtocolUsage extends string
-+    enum
-+      # Alternate Protocol was used without racing a normal connection.
-+      alternativeJobWonWithoutRace
-+      # Alternate Protocol was used by winning a race with a normal connection.
-+      alternativeJobWonRace
-+      # Alternate Protocol was not used by losing a race with a normal connection.
-+      mainJobWonRace
-+      # Alternate Protocol was not used because no Alternate-Protocol information
-+      # was available when the request was issued, but an Alternate-Protocol header
-+      # was present in the response.
-+      mappingMissing
-+      # Alternate Protocol was not used because it was marked broken.
-+      broken
-+      # HTTPS DNS protocol upgrade job was used without racing with a normal
-+      # connection and an Alternate Protocol job.
-+      dnsAlpnH3JobWonWithoutRace
-+      # HTTPS DNS protocol upgrade job won a race with a normal connection and
-+      # an Alternate Protocol job.
-+      dnsAlpnH3JobWonRace
-+      # This value is used when the reason is unknown.
-+      unspecifiedReason
-+
-+  # Source of service worker router.
-+  type ServiceWorkerRouterSource extends string
-+    enum
-+      network
-+      cache
-+      fetch-event
-+      race-network-and-fetch-handler
-+      race-network-and-cache
-+
-+  experimental type ServiceWorkerRouterInfo extends object
-+    properties
-+      # ID of the rule matched. If there is a matched rule, this field will
-+      # be set, otherwiser no value will be set.
-+      optional integer ruleIdMatched
-+      # The router source of the matched rule. If there is a matched rule, this
-+      # field will be set, otherwise no value will be set.
-+      optional ServiceWorkerRouterSource matchedSourceType
-+      # The actual router source used.
-+      optional ServiceWorkerRouterSource actualSourceType
-+
-+  # HTTP response data.
-+  type Response extends object
-+    properties
-+      # Response URL. This URL can be different from CachedResource.url in case of redirect.
-+      string url
-+      # HTTP response status code.
-+      integer status
-+      # HTTP response status text.
-+      string statusText
-+      # HTTP response headers.
-+      Headers headers
-+      # HTTP response headers text. This has been replaced by the headers in Network.responseReceivedExtraInfo.
-+      deprecated optional string headersText
-+      # Resource mimeType as determined by the browser.
-+      string mimeType
-+      # Resource charset as determined by the browser (if applicable).
-+      string charset
-+      # Refined HTTP request headers that were actually transmitted over the network.
-+      optional Headers requestHeaders
-+      # HTTP request headers text. This has been replaced by the headers in Network.requestWillBeSentExtraInfo.
-+      deprecated optional string requestHeadersText
-+      # Specifies whether physical connection was actually reused for this request.
-+      boolean connectionReused
-+      # Physical connection id that was actually used for this request.
-+      number connectionId
-+      # Remote IP address.
-+      optional string remoteIPAddress
-+      # Remote port.
-+      optional integer remotePort
-+      # Specifies that the request was served from the disk cache.
-+      optional boolean fromDiskCache
-+      # Specifies that the request was served from the ServiceWorker.
-+      optional boolean fromServiceWorker
-+      # Specifies that the request was served from the prefetch cache.
-+      optional boolean fromPrefetchCache
-+      # Specifies that the request was served from the prefetch cache.
-+      optional boolean fromEarlyHints
-+      # Information about how ServiceWorker Static Router API was used. If this
-+      # field is set with `matchedSourceType` field, a matching rule is found.
-+      # If this field is set without `matchedSource`, no matching rule is found.
-+      # Otherwise, the API is not used.
-+      experimental optional ServiceWorkerRouterInfo serviceWorkerRouterInfo
-+      # Total number of bytes received for this request so far.
-+      number encodedDataLength
-+      # Timing information for the given request.
-+      optional ResourceTiming timing
-+      # Response source of response from ServiceWorker.
-+      optional ServiceWorkerResponseSource serviceWorkerResponseSource
-+      # The time at which the returned response was generated.
-+      optional TimeSinceEpoch responseTime
-+      # Cache Storage Cache Name.
-+      optional string cacheStorageCacheName
-+      # Protocol used to fetch this request.
-+      optional string protocol
-+      # The reason why Chrome uses a specific transport protocol for HTTP semantics.
-+      experimental optional AlternateProtocolUsage alternateProtocolUsage
-+      # Security state of the request resource.
-+      Security.SecurityState securityState
-+      # Security details for the request.
-+      optional SecurityDetails securityDetails
-+      # Indicates whether the request was sent through IP Protection proxies. If
-+      # set to true, the request used the IP Protection privacy feature.
-+      experimental optional boolean isIpProtectionUsed
-+
-+  # WebSocket request data.
-+  type WebSocketRequest extends object
-+    properties
-+      # HTTP request headers.
-+      Headers headers
-+
-+  # WebSocket response data.
-+  type WebSocketResponse extends object
-+    properties
-+      # HTTP response status code.
-+      integer status
-+      # HTTP response status text.
-+      string statusText
-+      # HTTP response headers.
-+      Headers headers
-+      # HTTP response headers text.
-+      optional string headersText
-+      # HTTP request headers.
-+      optional Headers requestHeaders
-+      # HTTP request headers text.
-+      optional string requestHeadersText
-+
-+  # WebSocket message data. This represents an entire WebSocket message, not just a fragmented frame as the name suggests.
-+  type WebSocketFrame extends object
-+    properties
-+      # WebSocket message opcode.
-+      number opcode
-+      # WebSocket message mask.
-+      boolean mask
-+      # WebSocket message payload data.
-+      # If the opcode is 1, this is a text message and payloadData is a UTF-8 string.
-+      # If the opcode isn't 1, then payloadData is a base64 encoded string representing binary data.
-+      string payloadData
-+
-+  # Information about the cached resource.
-+  type CachedResource extends object
-+    properties
-+      # Resource URL. This is the url of the original network request.
-+      string url
-+      # Type of this resource.
-+      ResourceType type
-+      # Cached response data.
-+      optional Response response
-+      # Cached response body size.
-+      number bodySize
-+
-+  # Information about the request initiator.
-+  type Initiator extends object
-+    properties
-+      # Type of this initiator.
-+      enum type
-+        parser
-+        script
-+        preload
-+        SignedExchange
-+        preflight
-+        other
-+      # Initiator JavaScript stack trace, set for Script only.
-+      # Requires the Debugger domain to be enabled.
-+      optional Runtime.StackTrace stack
-+      # Initiator URL, set for Parser type or for Script type (when script is importing module) or for SignedExchange type.
-+      optional string url
-+      # Initiator line number, set for Parser type or for Script type (when script is importing
-+      # module) (0-based).
-+      optional number lineNumber
-+      # Initiator column number, set for Parser type or for Script type (when script is importing
-+      # module) (0-based).
-+      optional number columnNumber
-+      # Set if another request triggered this request (e.g. preflight).
-+      optional RequestId requestId
-+
-+  # cookiePartitionKey object
-+  # The representation of the components of the key that are created by the cookiePartitionKey class contained in net/cookies/cookie_partition_key.h.
-+  experimental type CookiePartitionKey extends object
-+    properties
-+      # The site of the top-level URL the browser was visiting at the start
-+      # of the request to the endpoint that set the cookie.
-+      string topLevelSite
-+      # Indicates if the cookie has any ancestors that are cross-site to the topLevelSite.
-+      boolean hasCrossSiteAncestor
-+
-+  # Cookie object
-+  type Cookie extends object
-+    properties
-+      # Cookie name.
-+      string name
-+      # Cookie value.
-+      string value
-+      # Cookie domain.
-+      string domain
-+      # Cookie path.
-+      string path
-+      # Cookie expiration date as the number of seconds since the UNIX epoch.
-+      number expires
-+      # Cookie size.
-+      integer size
-+      # True if cookie is http-only.
-+      boolean httpOnly
-+      # True if cookie is secure.
-+      boolean secure
-+      # True in case of session cookie.
-+      boolean session
-+      # Cookie SameSite type.
-+      optional CookieSameSite sameSite
-+      # Cookie Priority
-+      experimental CookiePriority priority
-+      # True if cookie is SameParty.
-+      experimental deprecated boolean sameParty
-+      # Cookie source scheme type.
-+      experimental CookieSourceScheme sourceScheme
-+      # Cookie source port. Valid values are {-1, [1, 65535]}, -1 indicates an unspecified port.
-+      # An unspecified port value allows protocol clients to emulate legacy cookie scope for the port.
-+      # This is a temporary ability and it will be removed in the future.
-+      experimental integer sourcePort
-+      # Cookie partition key.
-+      experimental optional CookiePartitionKey partitionKey
-+      # True if cookie partition key is opaque.
-+      experimental optional boolean partitionKeyOpaque
-+
-+  # Types of reasons why a cookie may not be stored from a response.
-+  experimental type SetCookieBlockedReason extends string
-+    enum
-+      # The cookie had the "Secure" attribute but was not received over a secure connection.
-+      SecureOnly
-+      # The cookie had the "SameSite=Strict" attribute but came from a cross-origin response.
-+      # This includes navigation requests initiated by other origins.
-+      SameSiteStrict
-+      # The cookie had the "SameSite=Lax" attribute but came from a cross-origin response.
-+      SameSiteLax
-+      # The cookie didn't specify a "SameSite" attribute and was defaulted to "SameSite=Lax" and
-+      # broke the same rules specified in the SameSiteLax value.
-+      SameSiteUnspecifiedTreatedAsLax
-+      # The cookie had the "SameSite=None" attribute but did not specify the "Secure" attribute,
-+      # which is required in order to use "SameSite=None".
-+      SameSiteNoneInsecure
-+      # The cookie was not stored due to user preferences.
-+      UserPreferences
-+      # The cookie was blocked due to third-party cookie phaseout.
-+      ThirdPartyPhaseout
-+      # The cookie was blocked by third-party cookie blocking between sites in
-+      # the same First-Party Set.
-+      ThirdPartyBlockedInFirstPartySet
-+      # The syntax of the Set-Cookie header of the response was invalid.
-+      SyntaxError
-+      # The scheme of the connection is not allowed to store cookies.
-+      SchemeNotSupported
-+      # The cookie was not sent over a secure connection and would have overwritten a cookie with
-+      # the Secure attribute.
-+      OverwriteSecure
-+      # The cookie's domain attribute was invalid with regards to the current host url.
-+      InvalidDomain
-+      # The cookie used the "__Secure-" or "__Host-" prefix in its name and broke the additional
-+      # rules applied to cookies with these prefixes as defined in
-+      # https://tools.ietf.org/html/draft-west-cookie-prefixes-05
-+      InvalidPrefix
-+      # An unknown error was encountered when trying to store this cookie.
-+      UnknownError
-+      # The cookie had the "SameSite=Strict" attribute but came from a response
-+      # with the same registrable domain but a different scheme.
-+      # This includes navigation requests initiated by other origins.
-+      # This is the "Schemeful Same-Site" version of the blocked reason.
-+      SchemefulSameSiteStrict
-+      # The cookie had the "SameSite=Lax" attribute but came from a response
-+      # with the same registrable domain but a different scheme.
-+      # This is the "Schemeful Same-Site" version of the blocked reason.
-+      SchemefulSameSiteLax
-+      # The cookie didn't specify a "SameSite" attribute and was defaulted to
-+      # "SameSite=Lax" and broke the same rules specified in the SchemefulSameSiteLax
-+      # value.
-+      # This is the "Schemeful Same-Site" version of the blocked reason.
-+      SchemefulSameSiteUnspecifiedTreatedAsLax
-+      # The cookie had the "SameParty" attribute but came from a cross-party response.
-+      SamePartyFromCrossPartyContext
-+      # The cookie had the "SameParty" attribute but did not specify the "Secure" attribute
-+      # (which is required in order to use "SameParty"); or specified the "SameSite=Strict"
-+      # attribute (which is forbidden when using "SameParty").
-+      SamePartyConflictsWithOtherAttributes
-+      # The cookie's name/value pair size exceeded the size limit defined in
-+      # RFC6265bis.
-+      NameValuePairExceedsMaxSize
-+      # The cookie contained a forbidden ASCII control character, or the tab
-+      # character if it appears in the middle of the cookie name, value, an
-+      # attribute name, or an attribute value.
-+      DisallowedCharacter
-+      # Cookie contains no content or only whitespace.
-+      NoCookieContent
-+
-+  # Types of reasons why a cookie may not be sent with a request.
-+  experimental type CookieBlockedReason extends string
-+    enum
-+      # The cookie had the "Secure" attribute and the connection was not secure.
-+      SecureOnly
-+      # The cookie's path was not within the request url's path.
-+      NotOnPath
-+      # The cookie's domain is not configured to match the request url's domain, even though they
-+      # share a common TLD+1 (TLD+1 of foo.bar.example.com is example.com).
-+      DomainMismatch
-+      # The cookie had the "SameSite=Strict" attribute and the request was made on on a different
-+      # site. This includes navigation requests initiated by other sites.
-+      SameSiteStrict
-+      # The cookie had the "SameSite=Lax" attribute and the request was made on a different site.
-+      # This does not include navigation requests initiated by other sites.
-+      SameSiteLax
-+      # The cookie didn't specify a SameSite attribute when it was stored and was defaulted to
-+      # "SameSite=Lax" and broke the same rules specified in the SameSiteLax value. The cookie had
-+      # to have been set with "SameSite=None" to enable third-party usage.
-+      SameSiteUnspecifiedTreatedAsLax
-+      # The cookie had the "SameSite=None" attribute and the connection was not secure. Cookies
-+      # without SameSite restrictions must be sent over a secure connection.
-+      SameSiteNoneInsecure
-+      # The cookie was not sent due to user preferences.
-+      UserPreferences
-+      # The cookie was blocked due to third-party cookie phaseout.
-+      ThirdPartyPhaseout
-+      # The cookie was blocked by third-party cookie blocking between sites in
-+      # the same First-Party Set.
-+      ThirdPartyBlockedInFirstPartySet
-+      # An unknown error was encountered when trying to send this cookie.
-+      UnknownError
-+      # The cookie had the "SameSite=Strict" attribute but came from a response
-+      # with the same registrable domain but a different scheme.
-+      # This includes navigation requests initiated by other origins.
-+      # This is the "Schemeful Same-Site" version of the blocked reason.
-+      SchemefulSameSiteStrict
-+      # The cookie had the "SameSite=Lax" attribute but came from a response
-+      # with the same registrable domain but a different scheme.
-+      # This is the "Schemeful Same-Site" version of the blocked reason.
-+      SchemefulSameSiteLax
-+      # The cookie didn't specify a "SameSite" attribute and was defaulted to
-+      # "SameSite=Lax" and broke the same rules specified in the SchemefulSameSiteLax
-+      # value.
-+      # This is the "Schemeful Same-Site" version of the blocked reason.
-+      SchemefulSameSiteUnspecifiedTreatedAsLax
-+      # The cookie had the "SameParty" attribute and the request was made from a cross-party context.
-+      SamePartyFromCrossPartyContext
-+      # The cookie's name/value pair size exceeded the size limit defined in
-+      # RFC6265bis.
-+      NameValuePairExceedsMaxSize
-+      # The cookie's source port value does not match the request origin's port.
-+      PortMismatch
-+      # The cookie's source scheme value does not match the request origin's scheme.
-+      SchemeMismatch
-+      # Unpartitioned cookie access from an anonymous context was blocked.
-+      AnonymousContext
-+
-+  # Types of reasons why a cookie should have been blocked by 3PCD but is exempted for the request.
-+  experimental type CookieExemptionReason extends string
-+    enum
-+      # The default value. Cookie with this reason could either be blocked or included.
-+      None
-+      # The cookie should have been blocked by 3PCD but is exempted by explicit user setting.
-+      UserSetting
-+      # The cookie should have been blocked by 3PCD but is exempted by metadata mitigation.
-+      TPCDMetadata
-+      # The cookie should have been blocked by 3PCD but is exempted by Deprecation Trial mitigation.
-+      TPCDDeprecationTrial
-+      # The cookie should have been blocked by 3PCD but is exempted by Top-level Deprecation Trial mitigation.
-+      TopLevelTPCDDeprecationTrial
-+      # The cookie should have been blocked by 3PCD but is exempted by heuristics mitigation.
-+      TPCDHeuristics
-+      # The cookie should have been blocked by 3PCD but is exempted by Enterprise Policy.
-+      EnterprisePolicy
-+      # The cookie should have been blocked by 3PCD but is exempted by Storage Access API.
-+      StorageAccess
-+      # The cookie should have been blocked by 3PCD but is exempted by Top-level Storage Access API.
-+      TopLevelStorageAccess
-+      # The cookie should have been blocked by 3PCD but is exempted by the first-party URL scheme.
-+      Scheme
-+      # The cookie was included due to the 'allow-same-site-none-cookies' value being set in the sandboxing policy.
-+      SameSiteNoneCookiesInSandbox
-+
-+  # A cookie which was not stored from a response with the corresponding reason.
-+  experimental type BlockedSetCookieWithReason extends object
-+    properties
-+      # The reason(s) this cookie was blocked.
-+      array of SetCookieBlockedReason blockedReasons
-+      # The string representing this individual cookie as it would appear in the header.
-+      # This is not the entire "cookie" or "set-cookie" header which could have multiple cookies.
-+      string cookieLine
-+      # The cookie object which represents the cookie which was not stored. It is optional because
-+      # sometimes complete cookie information is not available, such as in the case of parsing
-+      # errors.
-+      optional Cookie cookie
-+
-+  # A cookie should have been blocked by 3PCD but is exempted and stored from a response with the
-+  # corresponding reason. A cookie could only have at most one exemption reason.
-+  experimental type ExemptedSetCookieWithReason extends object
-+    properties
-+      # The reason the cookie was exempted.
-+      CookieExemptionReason exemptionReason
-+      # The string representing this individual cookie as it would appear in the header.
-+      string cookieLine
-+      # The cookie object representing the cookie.
-+      Cookie cookie
-+
-+  # A cookie associated with the request which may or may not be sent with it.
-+  # Includes the cookies itself and reasons for blocking or exemption.
-+  experimental type AssociatedCookie extends object
-+    properties
-+      # The cookie object representing the cookie which was not sent.
-+      Cookie cookie
-+      # The reason(s) the cookie was blocked. If empty means the cookie is included.
-+      array of CookieBlockedReason blockedReasons
-+      # The reason the cookie should have been blocked by 3PCD but is exempted. A cookie could
-+      # only have at most one exemption reason.
-+      optional CookieExemptionReason exemptionReason
-+
-+  # Cookie parameter object
-+  type CookieParam extends object
-+    properties
-+      # Cookie name.
-+      string name
-+      # Cookie value.
-+      string value
-+      # The request-URI to associate with the setting of the cookie. This value can affect the
-+      # default domain, path, source port, and source scheme values of the created cookie.
-+      optional string url
-+      # Cookie domain.
-+      optional string domain
-+      # Cookie path.
-+      optional string path
-+      # True if cookie is secure.
-+      optional boolean secure
-+      # True if cookie is http-only.
-+      optional boolean httpOnly
-+      # Cookie SameSite type.
-+      optional CookieSameSite sameSite
-+      # Cookie expiration date, session cookie if not set
-+      optional TimeSinceEpoch expires
-+      # Cookie Priority.
-+      experimental optional CookiePriority priority
-+      # True if cookie is SameParty.
-+      experimental optional boolean sameParty
-+      # Cookie source scheme type.
-+      experimental optional CookieSourceScheme sourceScheme
-+      # Cookie source port. Valid values are {-1, [1, 65535]}, -1 indicates an unspecified port.
-+      # An unspecified port value allows protocol clients to emulate legacy cookie scope for the port.
-+      # This is a temporary ability and it will be removed in the future.
-+      experimental optional integer sourcePort
-+      # Cookie partition key. If not set, the cookie will be set as not partitioned.
-+      experimental optional CookiePartitionKey partitionKey
-+
-+  # Authorization challenge for HTTP status code 401 or 407.
-+  experimental type AuthChallenge extends object
-+    properties
-+      # Source of the authentication challenge.
-+      optional enum source
-+        Server
-+        Proxy
-+      # Origin of the challenger.
-+      string origin
-+      # The authentication scheme used, such as basic or digest
-+      string scheme
-+      # The realm of the challenge. May be empty.
-+      string realm
-+
-+  # Response to an AuthChallenge.
-+  experimental type AuthChallengeResponse extends object
-+    properties
-+      # The decision on what to do in response to the authorization challenge.  Default means
-+      # deferring to the default behavior of the net stack, which will likely either the Cancel
-+      # authentication or display a popup dialog box.
-+      enum response
-+        Default
-+        CancelAuth
-+        ProvideCredentials
-+      # The username to provide, possibly empty. Should only be set if response is
-+      # ProvideCredentials.
-+      optional string username
-+      # The password to provide, possibly empty. Should only be set if response is
-+      # ProvideCredentials.
-+      optional string password
-+
-+  # Stages of the interception to begin intercepting. Request will intercept before the request is
-+  # sent. Response will intercept after the response is received.
-+  experimental type InterceptionStage extends string
-+    enum
-+      Request
-+      HeadersReceived
-+
-+  # Request pattern for interception.
-+  experimental type RequestPattern extends object
-+    properties
-+      # Wildcards (`'*'` -> zero or more, `'?'` -> exactly one) are allowed. Escape character is
-+      # backslash. Omitting is equivalent to `"*"`.
-+      optional string urlPattern
-+      # If set, only requests for matching resource types will be intercepted.
-+      optional ResourceType resourceType
-+      # Stage at which to begin intercepting requests. Default is Request.
-+      optional InterceptionStage interceptionStage
-+
-+  # Information about a signed exchange signature.
-+  # https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#rfc.section.3.1
-+  experimental type SignedExchangeSignature extends object
-+    properties
-+      # Signed exchange signature label.
-+      string label
-+      # The hex string of signed exchange signature.
-+      string signature
-+      # Signed exchange signature integrity.
-+      string integrity
-+      # Signed exchange signature cert Url.
-+      optional string certUrl
-+      # The hex string of signed exchange signature cert sha256.
-+      optional string certSha256
-+      # Signed exchange signature validity Url.
-+      string validityUrl
-+      # Signed exchange signature date.
-+      integer date
-+      # Signed exchange signature expires.
-+      integer expires
-+      # The encoded certificates.
-+      optional array of string certificates
-+
-+  # Information about a signed exchange header.
-+  # https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#cbor-representation
-+  experimental type SignedExchangeHeader extends object
-+    properties
-+      # Signed exchange request URL.
-+      string requestUrl
-+      # Signed exchange response code.
-+      integer responseCode
-+      # Signed exchange response headers.
-+      Headers responseHeaders
-+      # Signed exchange response signature.
-+      array of SignedExchangeSignature signatures
-+      # Signed exchange header integrity hash in the form of `sha256-<base64-hash-value>`.
-+      string headerIntegrity
-+
-+  # Field type for a signed exchange related error.
-+  experimental type SignedExchangeErrorField extends string
-+    enum
-+      signatureSig
-+      signatureIntegrity
-+      signatureCertUrl
-+      signatureCertSha256
-+      signatureValidityUrl
-+      signatureTimestamps
-+
-+  # Information about a signed exchange response.
-+  experimental type SignedExchangeError extends object
-+    properties
-+      # Error message.
-+      string message
-+      # The index of the signature which caused the error.
-+      optional integer signatureIndex
-+      # The field which caused the error.
-+      optional SignedExchangeErrorField errorField
-+
-+  # Information about a signed exchange response.
-+  experimental type SignedExchangeInfo extends object
-+    properties
-+      # The outer response of signed HTTP exchange which was received from network.
-+      Response outerResponse
-+      # Whether network response for the signed exchange was accompanied by
-+      # extra headers.
-+      boolean hasExtraInfo
-+      # Information about the signed exchange header.
-+      optional SignedExchangeHeader header
-+      # Security details for the signed exchange header.
-+      optional SecurityDetails securityDetails
-+      # Errors occurred while handling the signed exchange.
-+      optional array of SignedExchangeError errors
-+
-+  # List of content encodings supported by the backend.
-+  experimental type ContentEncoding extends string
-+    enum
-+      deflate
-+      gzip
-+      br
-+      zstd
-+
-+  # Sets a list of content encodings that will be accepted. Empty list means no encoding is accepted.
-+  experimental command setAcceptedEncodings
-+    parameters
-+      # List of accepted content encodings.
-+      array of ContentEncoding encodings
-+
-+  # Clears accepted encodings set by setAcceptedEncodings
-+  experimental command clearAcceptedEncodingsOverride
-+
-+  # Tells whether clearing browser cache is supported.
-+  deprecated command canClearBrowserCache
-+    returns
-+      # True if browser cache can be cleared.
-+      boolean result
-+
-+  # Tells whether clearing browser cookies is supported.
-+  deprecated command canClearBrowserCookies
-+    returns
-+      # True if browser cookies can be cleared.
-+      boolean result
-+
-+  # Tells whether emulation of network conditions is supported.
-+  deprecated command canEmulateNetworkConditions
-+    returns
-+      # True if emulation of network conditions is supported.
-+      boolean result
-+
-+  # Clears browser cache.
-+  command clearBrowserCache
-+
-+  # Clears browser cookies.
-+  command clearBrowserCookies
-+
-+  # Response to Network.requestIntercepted which either modifies the request to continue with any
-+  # modifications, or blocks it, or completes it with the provided response bytes. If a network
-+  # fetch occurs as a result which encounters a redirect an additional Network.requestIntercepted
-+  # event will be sent with the same InterceptionId.
-+  # Deprecated, use Fetch.continueRequest, Fetch.fulfillRequest and Fetch.failRequest instead.
-+  experimental deprecated command continueInterceptedRequest
-+    parameters
-+      InterceptionId interceptionId
-+      # If set this causes the request to fail with the given reason. Passing `Aborted` for requests
-+      # marked with `isNavigationRequest` also cancels the navigation. Must not be set in response
-+      # to an authChallenge.
-+      optional ErrorReason errorReason
-+      # If set the requests completes using with the provided base64 encoded raw response, including
-+      # HTTP status line and headers etc... Must not be set in response to an authChallenge.
-+      optional binary rawResponse
-+      # If set the request url will be modified in a way that's not observable by page. Must not be
-+      # set in response to an authChallenge.
-+      optional string url
-+      # If set this allows the request method to be overridden. Must not be set in response to an
-+      # authChallenge.
-+      optional string method
-+      # If set this allows postData to be set. Must not be set in response to an authChallenge.
-+      optional string postData
-+      # If set this allows the request headers to be changed. Must not be set in response to an
-+      # authChallenge.
-+      optional Headers headers
-+      # Response to a requestIntercepted with an authChallenge. Must not be set otherwise.
-+      optional AuthChallengeResponse authChallengeResponse
-+
-+  # Deletes browser cookies with matching name and url or domain/path/partitionKey pair.
-+  command deleteCookies
-+    parameters
-+      # Name of the cookies to remove.
-+      string name
-+      # If specified, deletes all the cookies with the given name where domain and path match
-+      # provided URL.
-+      optional string url
-+      # If specified, deletes only cookies with the exact domain.
-+      optional string domain
-+      # If specified, deletes only cookies with the exact path.
-+      optional string path
-+      # If specified, deletes only cookies with the the given name and partitionKey where
-+      # all partition key attributes match the cookie partition key attribute.
-+      experimental optional CookiePartitionKey partitionKey
-+
-+  # Disables network tracking, prevents network events from being sent to the client.
-+  command disable
-+
-+  # Activates emulation of network conditions.
-+  command emulateNetworkConditions
-+    parameters
-+      # True to emulate internet disconnection.
-+      boolean offline
-+      # Minimum latency from request sent to response headers received (ms).
-+      number latency
-+      # Maximal aggregated download throughput (bytes/sec). -1 disables download throttling.
-+      number downloadThroughput
-+      # Maximal aggregated upload throughput (bytes/sec).  -1 disables upload throttling.
-+      number uploadThroughput
-+      # Connection type if known.
-+      optional ConnectionType connectionType
-+      # WebRTC packet loss (percent, 0-100). 0 disables packet loss emulation, 100 drops all the packets.
-+      experimental optional number packetLoss
-+      # WebRTC packet queue length (packet). 0 removes any queue length limitations.
-+      experimental optional integer packetQueueLength
-+      # WebRTC packetReordering feature.
-+      experimental optional boolean packetReordering
-+
-+  # Enables network tracking, network events will now be delivered to the client.
-+  command enable
-+    parameters
-+      # Buffer size in bytes to use when preserving network payloads (XHRs, etc).
-+      experimental optional integer maxTotalBufferSize
-+      # Per-resource buffer size in bytes to use when preserving network payloads (XHRs, etc).
-+      experimental optional integer maxResourceBufferSize
-+      # Longest post body size (in bytes) that would be included in requestWillBeSent notification
-+      optional integer maxPostDataSize
-+      # Whether DirectSocket chunk send/receive events should be reported.
-+      experimental optional boolean reportDirectSocketTraffic
-+
-+  # Returns all browser cookies. Depending on the backend support, will return detailed cookie
-+  # information in the `cookies` field.
-+  # Deprecated. Use Storage.getCookies instead.
-+  deprecated command getAllCookies
-+    returns
-+      # Array of cookie objects.
-+      array of Cookie cookies
-+
-+  # Returns the DER-encoded certificate.
-+  experimental command getCertificate
-+    parameters
-+      # Origin to get certificate for.
-+      string origin
-+    returns
-+      array of string tableNames
-+
-+  # Returns all browser cookies for the current URL. Depending on the backend support, will return
-+  # detailed cookie information in the `cookies` field.
-+  command getCookies
-+    parameters
-+      # The list of URLs for which applicable cookies will be fetched.
-+      # If not specified, it's assumed to be set to the list containing
-+      # the URLs of the page and all of its subframes.
-+      optional array of string urls
-+    returns
-+      # Array of cookie objects.
-+      array of Cookie cookies
-+
-+  # Returns content served for the given request.
-+  command getResponseBody
-+    parameters
-+      # Identifier of the network request to get content for.
-+      RequestId requestId
-+    returns
-+      # Response body.
-+      string body
-+      # True, if content was sent as base64.
-+      boolean base64Encoded
-+
-+  # Returns post data sent with the request. Returns an error when no data was sent with the request.
-+  command getRequestPostData
-+    parameters
-+      # Identifier of the network request to get content for.
-+      RequestId requestId
-+    returns
-+      # Request body string, omitting files from multipart requests
-+      string postData
-+
-+  # Returns content served for the given currently intercepted request.
-+  experimental command getResponseBodyForInterception
-+    parameters
-+      # Identifier for the intercepted request to get body for.
-+      InterceptionId interceptionId
-+    returns
-+      # Response body.
-+      string body
-+      # True, if content was sent as base64.
-+      boolean base64Encoded
-+
-+  # Returns a handle to the stream representing the response body. Note that after this command,
-+  # the intercepted request can't be continued as is -- you either need to cancel it or to provide
-+  # the response body. The stream only supports sequential read, IO.read will fail if the position
-+  # is specified.
-+  experimental command takeResponseBodyForInterceptionAsStream
-+    parameters
-+      InterceptionId interceptionId
-+    returns
-+      IO.StreamHandle stream
-+
-+  # This method sends a new XMLHttpRequest which is identical to the original one. The following
-+  # parameters should be identical: method, url, async, request body, extra headers, withCredentials
-+  # attribute, user, password.
-+  experimental command replayXHR
-+    parameters
-+      # Identifier of XHR to replay.
-+      RequestId requestId
-+
-+  # Searches for given string in response content.
-+  experimental command searchInResponseBody
-+    parameters
-+      # Identifier of the network response to search.
-+      RequestId requestId
-+      # String to search for.
-+      string query
-+      # If true, search is case sensitive.
-+      optional boolean caseSensitive
-+      # If true, treats string parameter as regex.
-+      optional boolean isRegex
-+    returns
-+      # List of search matches.
-+      array of Debugger.SearchMatch result
-+
-+  # Blocks URLs from loading.
-+  experimental command setBlockedURLs
-+    parameters
-+      # URL patterns to block. Wildcards ('*') are allowed.
-+      array of string urls
-+
-+  # Toggles ignoring of service worker for each request.
-+  command setBypassServiceWorker
-+    parameters
-+      # Bypass service worker and load from network.
-+      boolean bypass
-+
-+  # Toggles ignoring cache for each request. If `true`, cache will not be used.
-+  command setCacheDisabled
-+    parameters
-+      # Cache disabled state.
-+      boolean cacheDisabled
-+
-+  # Sets a cookie with the given cookie data; may overwrite equivalent cookies if they exist.
-+  command setCookie
-+    parameters
-+      # Cookie name.
-+      string name
-+      # Cookie value.
-+      string value
-+      # The request-URI to associate with the setting of the cookie. This value can affect the
-+      # default domain, path, source port, and source scheme values of the created cookie.
-+      optional string url
-+      # Cookie domain.
-+      optional string domain
-+      # Cookie path.
-+      optional string path
-+      # True if cookie is secure.
-+      optional boolean secure
-+      # True if cookie is http-only.
-+      optional boolean httpOnly
-+      # Cookie SameSite type.
-+      optional CookieSameSite sameSite
-+      # Cookie expiration date, session cookie if not set
-+      optional TimeSinceEpoch expires
-+      # Cookie Priority type.
-+      experimental optional CookiePriority priority
-+      # True if cookie is SameParty.
-+      experimental optional boolean sameParty
-+      # Cookie source scheme type.
-+      experimental optional CookieSourceScheme sourceScheme
-+      # Cookie source port. Valid values are {-1, [1, 65535]}, -1 indicates an unspecified port.
-+      # An unspecified port value allows protocol clients to emulate legacy cookie scope for the port.
-+      # This is a temporary ability and it will be removed in the future.
-+      experimental optional integer sourcePort
-+      # Cookie partition key. If not set, the cookie will be set as not partitioned.
-+      experimental optional CookiePartitionKey partitionKey
-+    returns
-+      # Always set to true. If an error occurs, the response indicates protocol error.
-+      deprecated boolean success
-+
-+  # Sets given cookies.
-+  command setCookies
-+    parameters
-+      # Cookies to be set.
-+      array of CookieParam cookies
-+
-+  # Specifies whether to always send extra HTTP headers with the requests from this page.
-+  command setExtraHTTPHeaders
-+    parameters
-+      # Map with extra HTTP headers.
-+      Headers headers
-+
-+  # Specifies whether to attach a page script stack id in requests
-+  experimental command setAttachDebugStack
-+    parameters
-+      # Whether to attach a page script stack for debugging purpose.
-+      boolean enabled
-+
-+  # Sets the requests to intercept that match the provided patterns and optionally resource types.
-+  # Deprecated, please use Fetch.enable instead.
-+  experimental deprecated command setRequestInterception
-+    parameters
-+      # Requests matching any of these patterns will be forwarded and wait for the corresponding
-+      # continueInterceptedRequest call.
-+      array of RequestPattern patterns
-+
-+  # Allows overriding user agent with the given string.
-+  command setUserAgentOverride
-+    redirect Emulation
-+    parameters
-+      # User agent to use.
-+      string userAgent
-+      # Browser language to emulate.
-+      optional string acceptLanguage
-+      # The platform navigator.platform should return.
-+      optional string platform
-+      # To be sent in Sec-CH-UA-* headers and returned in navigator.userAgentData
-+      experimental optional Emulation.UserAgentMetadata userAgentMetadata
-+
-+
-+  # Fired when data chunk was received over the network.
-+  event dataReceived
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Data chunk length.
-+      integer dataLength
-+      # Actual bytes received (might be less than dataLength for compressed encodings).
-+      integer encodedDataLength
-+      # Data that was received.
-+      experimental optional binary data
-+
-+  # Enables streaming of the response for the given requestId.
-+  # If enabled, the dataReceived event contains the data that was received during streaming.
-+  experimental command streamResourceContent
-+    parameters
-+      # Identifier of the request to stream.
-+      RequestId requestId
-+    returns
-+      # Data that has been buffered until streaming is enabled.
-+      binary bufferedData
-+
-+  # Fired when EventSource message is received.
-+  event eventSourceMessageReceived
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Message type.
-+      string eventName
-+      # Message identifier.
-+      string eventId
-+      # Message content.
-+      string data
-+
-+  # Fired when HTTP request has failed to load.
-+  event loadingFailed
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Resource type.
-+      ResourceType type
-+      # Error message. List of network errors: https://cs.chromium.org/chromium/src/net/base/net_error_list.h
-+      string errorText
-+      # True if loading was canceled.
-+      optional boolean canceled
-+      # The reason why loading was blocked, if any.
-+      optional BlockedReason blockedReason
-+       # The reason why loading was blocked by CORS, if any.
-+      optional CorsErrorStatus corsErrorStatus
-+
-+  # Fired when HTTP request has finished loading.
-+  event loadingFinished
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Total number of bytes received for this request.
-+      number encodedDataLength
-+
-+  # Details of an intercepted HTTP request, which must be either allowed, blocked, modified or
-+  # mocked.
-+  # Deprecated, use Fetch.requestPaused instead.
-+  experimental deprecated event requestIntercepted
-+    parameters
-+      # Each request the page makes will have a unique id, however if any redirects are encountered
-+      # while processing that fetch, they will be reported with the same id as the original fetch.
-+      # Likewise if HTTP authentication is needed then the same fetch id will be used.
-+      InterceptionId interceptionId
-+      Request request
-+      # The id of the frame that initiated the request.
-+      Page.FrameId frameId
-+      # How the requested resource will be used.
-+      ResourceType resourceType
-+      # Whether this is a navigation request, which can abort the navigation completely.
-+      boolean isNavigationRequest
-+      # Set if the request is a navigation that will result in a download.
-+      # Only present after response is received from the server (i.e. HeadersReceived stage).
-+      optional boolean isDownload
-+      # Redirect location, only sent if a redirect was intercepted.
-+      optional string redirectUrl
-+      # Details of the Authorization Challenge encountered. If this is set then
-+      # continueInterceptedRequest must contain an authChallengeResponse.
-+      optional AuthChallenge authChallenge
-+      # Response error if intercepted at response stage or if redirect occurred while intercepting
-+      # request.
-+      optional ErrorReason responseErrorReason
-+      # Response code if intercepted at response stage or if redirect occurred while intercepting
-+      # request or auth retry occurred.
-+      optional integer responseStatusCode
-+      # Response headers if intercepted at the response stage or if redirect occurred while
-+      # intercepting request or auth retry occurred.
-+      optional Headers responseHeaders
-+      # If the intercepted request had a corresponding requestWillBeSent event fired for it, then
-+      # this requestId will be the same as the requestId present in the requestWillBeSent event.
-+      optional RequestId requestId
-+
-+  # Fired if request ended up loading from cache.
-+  event requestServedFromCache
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+
-+  # Fired when page is about to send HTTP request.
-+  event requestWillBeSent
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Loader identifier. Empty string if the request is fetched from worker.
-+      LoaderId loaderId
-+      # URL of the document this request is loaded for.
-+      string documentURL
-+      # Request data.
-+      Request request
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Timestamp.
-+      TimeSinceEpoch wallTime
-+      # Request initiator.
-+      Initiator initiator
-+      # In the case that redirectResponse is populated, this flag indicates whether
-+      # requestWillBeSentExtraInfo and responseReceivedExtraInfo events will be or were emitted
-+      # for the request which was just redirected.
-+      experimental boolean redirectHasExtraInfo
-+      # Redirect response data.
-+      optional Response redirectResponse
-+      # Type of this resource.
-+      optional ResourceType type
-+      # Frame identifier.
-+      optional Page.FrameId frameId
-+      # Whether the request is initiated by a user gesture. Defaults to false.
-+      optional boolean hasUserGesture
-+
-+  # Fired when resource loading priority is changed
-+  experimental event resourceChangedPriority
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # New priority
-+      ResourcePriority newPriority
-+      # Timestamp.
-+      MonotonicTime timestamp
-+
-+  # Fired when a signed exchange was received over the network
-+  experimental event signedExchangeReceived
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Information about the signed exchange response.
-+      SignedExchangeInfo info
-+
-+  # Fired when HTTP response is available.
-+  event responseReceived
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Loader identifier. Empty string if the request is fetched from worker.
-+      LoaderId loaderId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Resource type.
-+      ResourceType type
-+      # Response data.
-+      Response response
-+      # Indicates whether requestWillBeSentExtraInfo and responseReceivedExtraInfo events will be
-+      # or were emitted for this request.
-+      experimental boolean hasExtraInfo
-+      # Frame identifier.
-+      optional Page.FrameId frameId
-+
-+  # Fired when WebSocket is closed.
-+  event webSocketClosed
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+
-+  # Fired upon WebSocket creation.
-+  event webSocketCreated
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # WebSocket request URL.
-+      string url
-+      # Request initiator.
-+      optional Initiator initiator
-+
-+  # Fired when WebSocket message error occurs.
-+  event webSocketFrameError
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # WebSocket error message.
-+      string errorMessage
-+
-+  # Fired when WebSocket message is received.
-+  event webSocketFrameReceived
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # WebSocket response data.
-+      WebSocketFrame response
-+
-+  # Fired when WebSocket message is sent.
-+  event webSocketFrameSent
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # WebSocket response data.
-+      WebSocketFrame response
-+
-+  # Fired when WebSocket handshake response becomes available.
-+  event webSocketHandshakeResponseReceived
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # WebSocket response data.
-+      WebSocketResponse response
-+
-+  # Fired when WebSocket is about to initiate handshake.
-+  event webSocketWillSendHandshakeRequest
-+    parameters
-+      # Request identifier.
-+      RequestId requestId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # UTC Timestamp.
-+      TimeSinceEpoch wallTime
-+      # WebSocket request data.
-+      WebSocketRequest request
-+
-+  # Fired upon WebTransport creation.
-+  event webTransportCreated
-+    parameters
-+      # WebTransport identifier.
-+      RequestId transportId
-+      # WebTransport request URL.
-+      string url
-+      # Timestamp.
-+      MonotonicTime timestamp
-+      # Request initiator.
-+      optional Initiator initiator
-+
-+  # Fired when WebTransport handshake is finished.
-+  event webTransportConnectionEstablished
-+    parameters
-+      # WebTransport identifier.
-+      RequestId transportId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+
-+  # Fired when WebTransport is disposed.
-+  event webTransportClosed
-+    parameters
-+      # WebTransport identifier.
-+      RequestId transportId
-+      # Timestamp.
-+      MonotonicTime timestamp
-+
-+  experimental type DirectSocketDnsQueryType extends string
-+    enum
-+      ipv4
-+      ipv6
-+
-+  experimental type DirectTCPSocketOptions extends object
-+    properties
-+      # TCP_NODELAY option
-+      boolean noDelay
-+      # Expected to be unsigned integer.
-+      optional number keepAliveDelay
-+      # Expected to be unsigned integer.
-+      optional number sendBufferSize
-+      # Expected to be unsigned integer.
-+      optional number receiveBufferSize
-+      optional DirectSocketDnsQueryType dnsQueryType
-+
-+
-+  # Fired upon direct_socket.TCPSocket creation.
-+  experimental event directTCPSocketCreated
-+    parameters
-+      RequestId identifier
-+      string remoteAddr
-+      # Unsigned int 16.
-+      integer remotePort
-+      DirectTCPSocketOptions options
-+      MonotonicTime timestamp
-+      optional Initiator initiator
-+
-+  # Fired when direct_socket.TCPSocket connection is opened.
-+  experimental event directTCPSocketOpened
-+    parameters
-+      RequestId identifier
-+      string remoteAddr
-+      # Expected to be unsigned integer.
-+      integer remotePort
-+      MonotonicTime timestamp
-+      optional string localAddr
-+      # Expected to be unsigned integer.
-+      optional integer localPort
-+
-+  # Fired when direct_socket.TCPSocket is aborted.
-+  experimental event directTCPSocketAborted
-+    parameters
-+      RequestId identifier
-+      string errorMessage
-+      MonotonicTime timestamp
-+
-+  # Fired when direct_socket.TCPSocket is closed.
-+  experimental event directTCPSocketClosed
-+    parameters
-+      RequestId identifier
-+      MonotonicTime timestamp
-+
-+  # Fired when data is sent to tcp direct socket stream.
-+  experimental event directTCPSocketChunkSent
-+    parameters
-+      RequestId identifier
-+      binary data
-+      MonotonicTime timestamp
-+
-+  # Fired when data is received from tcp direct socket stream.
-+  experimental event directTCPSocketChunkReceived
-+    parameters
-+      RequestId identifier
-+      binary data
-+      MonotonicTime timestamp
-+
-+  experimental type DirectUDPSocketOptions extends object
-+    properties
-+      optional string remoteAddr
-+      # Unsigned int 16.
-+      optional integer remotePort
-+
-+      optional string localAddr
-+      # Unsigned int 16.
-+      optional integer localPort
-+
-+      optional DirectSocketDnsQueryType dnsQueryType
-+
-+      # Expected to be unsigned integer.
-+      optional number sendBufferSize
-+      # Expected to be unsigned integer.
-+      optional number receiveBufferSize
-+
-+
-+  # Fired upon direct_socket.UDPSocket creation.
-+  experimental event directUDPSocketCreated
-+    parameters
-+      RequestId identifier
-+      DirectUDPSocketOptions options
-+      MonotonicTime timestamp
-+      optional Initiator initiator
-+
-+  # Fired when direct_socket.UDPSocket connection is opened.
-+  experimental event directUDPSocketOpened
-+    parameters
-+      RequestId identifier
-+      string localAddr
-+      # Expected to be unsigned integer.
-+      integer localPort
-+      MonotonicTime timestamp
-+      optional string remoteAddr
-+      # Expected to be unsigned integer.
-+      optional integer remotePort
-+
-+  # Fired when direct_socket.UDPSocket is aborted.
-+  experimental event directUDPSocketAborted
-+    parameters
-+      RequestId identifier
-+      string errorMessage
-+      MonotonicTime timestamp
-+
-+  # Fired when direct_socket.UDPSocket is closed.
-+  experimental event directUDPSocketClosed
-+    parameters
-+      RequestId identifier
-+      MonotonicTime timestamp
-+
-+  experimental type DirectUDPMessage extends object
-+    properties
-+      binary data
-+      # Null for connected mode.
-+      optional string remoteAddr
-+      # Null for connected mode.
-+      # Expected to be unsigned integer.
-+      optional integer remotePort
-+
-+  # Fired when message is sent to udp direct socket stream.
-+  experimental event directUDPSocketChunkSent
-+    parameters
-+      RequestId identifier
-+      DirectUDPMessage message
-+      MonotonicTime timestamp
-+
-+  # Fired when message is received from udp direct socket stream.
-+  experimental event directUDPSocketChunkReceived
-+    parameters
-+      RequestId identifier
-+      DirectUDPMessage message
-+      MonotonicTime timestamp
-+
-+  experimental type PrivateNetworkRequestPolicy extends string
-+    enum
-+      Allow
-+      BlockFromInsecureToMorePrivate
-+      WarnFromInsecureToMorePrivate
-+      PreflightBlock
-+      PreflightWarn
-+      PermissionBlock
-+      PermissionWarn
-+
-+  experimental type IPAddressSpace extends string
-+    enum
-+      Loopback
-+      Local
-+      Public
-+      Unknown
-+
-+  experimental type ConnectTiming extends object
-+    properties
-+      # Timing's requestTime is a baseline in seconds, while the other numbers are ticks in
-+      # milliseconds relatively to this requestTime. Matches ResourceTiming's requestTime for
-+      # the same request (but not for redirected requests).
-+      number requestTime
-+
-+  experimental type ClientSecurityState extends object
-+    properties
-+      boolean initiatorIsSecureContext
-+      IPAddressSpace initiatorIPAddressSpace
-+      PrivateNetworkRequestPolicy privateNetworkRequestPolicy
-+
-+  # Fired when additional information about a requestWillBeSent event is available from the
-+  # network stack. Not every requestWillBeSent event will have an additional
-+  # requestWillBeSentExtraInfo fired for it, and there is no guarantee whether requestWillBeSent
-+  # or requestWillBeSentExtraInfo will be fired first for the same request.
-+  experimental event requestWillBeSentExtraInfo
-+    parameters
-+      # Request identifier. Used to match this information to an existing requestWillBeSent event.
-+      RequestId requestId
-+      # A list of cookies potentially associated to the requested URL. This includes both cookies sent with
-+      # the request and the ones not sent; the latter are distinguished by having blockedReasons field set.
-+      array of AssociatedCookie associatedCookies
-+      # Raw request headers as they will be sent over the wire.
-+      Headers headers
-+      # Connection timing information for the request.
-+      experimental ConnectTiming connectTiming
-+      # The client security state set for the request.
-+      optional ClientSecurityState clientSecurityState
-+      # Whether the site has partitioned cookies stored in a partition different than the current one.
-+      optional boolean siteHasCookieInOtherPartition
-+
-+  # Fired when additional information about a responseReceived event is available from the network
-+  # stack. Not every responseReceived event will have an additional responseReceivedExtraInfo for
-+  # it, and responseReceivedExtraInfo may be fired before or after responseReceived.
-+  experimental event responseReceivedExtraInfo
-+    parameters
-+      # Request identifier. Used to match this information to another responseReceived event.
-+      RequestId requestId
-+      # A list of cookies which were not stored from the response along with the corresponding
-+      # reasons for blocking. The cookies here may not be valid due to syntax errors, which
-+      # are represented by the invalid cookie line string instead of a proper cookie.
-+      array of BlockedSetCookieWithReason blockedCookies
-+      # Raw response headers as they were received over the wire.
-+      # Duplicate headers in the response are represented as a single key with their values
-+      # concatentated using `\n` as the separator.
-+      # See also `headersText` that contains verbatim text for HTTP/1.*.
-+      Headers headers
-+      # The IP address space of the resource. The address space can only be determined once the transport
-+      # established the connection, so we can't send it in `requestWillBeSentExtraInfo`.
-+      IPAddressSpace resourceIPAddressSpace
-+      # The status code of the response. This is useful in cases the request failed and no responseReceived
-+      # event is triggered, which is the case for, e.g., CORS errors. This is also the correct status code
-+      # for cached requests, where the status in responseReceived is a 200 and this will be 304.
-+      integer statusCode
-+      # Raw response header text as it was received over the wire. The raw text may not always be
-+      # available, such as in the case of HTTP/2 or QUIC.
-+      optional string headersText
-+      # The cookie partition key that will be used to store partitioned cookies set in this response.
-+      # Only sent when partitioned cookies are enabled.
-+      experimental optional CookiePartitionKey cookiePartitionKey
-+      # True if partitioned cookies are enabled, but the partition key is not serializable to string.
-+      optional boolean cookiePartitionKeyOpaque
-+      # A list of cookies which should have been blocked by 3PCD but are exempted and stored from
-+      # the response with the corresponding reason.
-+      optional array of ExemptedSetCookieWithReason exemptedCookies
-+
-+  # Fired when 103 Early Hints headers is received in addition to the common response.
-+  # Not every responseReceived event will have an responseReceivedEarlyHints fired.
-+  # Only one responseReceivedEarlyHints may be fired for eached responseReceived event.
-+  experimental event responseReceivedEarlyHints
-+    parameters
-+      # Request identifier. Used to match this information to another responseReceived event.
-+      RequestId requestId
-+      # Raw response headers as they were received over the wire.
-+      # Duplicate headers in the response are represented as a single key with their values
-+      # concatentated using `\n` as the separator.
-+      # See also `headersText` that contains verbatim text for HTTP/1.*.
-+      Headers headers
-+
-+  # Fired exactly once for each Trust Token operation. Depending on
-+  # the type of the operation and whether the operation succeeded or
-+  # failed, the event is fired before the corresponding request was sent
-+  # or after the response was received.
-+  experimental event trustTokenOperationDone
-+    parameters
-+      # Detailed success or error status of the operation.
-+      # 'AlreadyExists' also signifies a successful operation, as the result
-+      # of the operation already exists und thus, the operation was abort
-+      # preemptively (e.g. a cache hit).
-+      enum status
-+        Ok
-+        InvalidArgument
-+        MissingIssuerKeys
-+        FailedPrecondition
-+        ResourceExhausted
-+        AlreadyExists
-+        ResourceLimited
-+        Unauthorized
-+        BadResponse
-+        InternalError
-+        UnknownError
-+        FulfilledLocally
-+        SiteIssuerLimit
-+      TrustTokenOperationType type
-+      RequestId requestId
-+      # Top level origin. The context in which the operation was attempted.
-+      optional string topLevelOrigin
-+      # Origin of the issuer in case of a "Issuance" or "Redemption" operation.
-+      optional string issuerOrigin
-+      # The number of obtained Trust Tokens on a successful "Issuance" operation.
-+      optional integer issuedTokenCount
-+
-+  # Fired once security policy has been updated.
-+  experimental event policyUpdated
-+
-+  # Fired once when parsing the .wbn file has succeeded.
-+  # The event contains the information about the web bundle contents.
-+  experimental event subresourceWebBundleMetadataReceived
-+    parameters
-+      # Request identifier. Used to match this information to another event.
-+      RequestId requestId
-+      # A list of URLs of resources in the subresource Web Bundle.
-+      array of string urls
-+
-+  # Fired once when parsing the .wbn file has failed.
-+  experimental event subresourceWebBundleMetadataError
-+    parameters
-+      # Request identifier. Used to match this information to another event.
-+      RequestId requestId
-+      # Error message
-+      string errorMessage
-+
-+  # Fired when handling requests for resources within a .wbn file.
-+  # Note: this will only be fired for resources that are requested by the webpage.
-+  experimental event subresourceWebBundleInnerResponseParsed
-+    parameters
-+      # Request identifier of the subresource request
-+      RequestId innerRequestId
-+      # URL of the subresource resource.
-+      string innerRequestURL
-+      # Bundle request identifier. Used to match this information to another event.
-+      # This made be absent in case when the instrumentation was enabled only
-+      # after webbundle was parsed.
-+      optional RequestId bundleRequestId
-+
-+  # Fired when request for resources within a .wbn file failed.
-+  experimental event subresourceWebBundleInnerResponseError
-+    parameters
-+      # Request identifier of the subresource request
-+      RequestId innerRequestId
-+      # URL of the subresource resource.
-+      string innerRequestURL
-+      # Error message
-+      string errorMessage
-+      # Bundle request identifier. Used to match this information to another event.
-+      # This made be absent in case when the instrumentation was enabled only
-+      # after webbundle was parsed.
-+      optional RequestId bundleRequestId
-+
-+  experimental type CrossOriginOpenerPolicyValue extends string
-+    enum
-+      SameOrigin
-+      SameOriginAllowPopups
-+      RestrictProperties
-+      UnsafeNone
-+      SameOriginPlusCoep
-+      RestrictPropertiesPlusCoep
-+      NoopenerAllowPopups
-+
-+  experimental type CrossOriginOpenerPolicyStatus extends object
-+    properties
-+      CrossOriginOpenerPolicyValue value
-+      CrossOriginOpenerPolicyValue reportOnlyValue
-+      optional string reportingEndpoint
-+      optional string reportOnlyReportingEndpoint
-+
-+  experimental type CrossOriginEmbedderPolicyValue extends string
-+    enum
-+      None
-+      Credentialless
-+      RequireCorp
-+
-+  experimental type CrossOriginEmbedderPolicyStatus extends object
-+    properties
-+      CrossOriginEmbedderPolicyValue value
-+      CrossOriginEmbedderPolicyValue reportOnlyValue
-+      optional string reportingEndpoint
-+      optional string reportOnlyReportingEndpoint
-+
-+  experimental type ContentSecurityPolicySource extends string
-+    enum
-+      HTTP
-+      Meta
-+
-+  experimental type ContentSecurityPolicyStatus extends object
-+    properties
-+      string effectiveDirectives
-+      boolean isEnforced
-+      ContentSecurityPolicySource source
-+
-+  experimental type SecurityIsolationStatus extends object
-+    properties
-+      optional CrossOriginOpenerPolicyStatus coop
-+      optional CrossOriginEmbedderPolicyStatus coep
-+      optional array of ContentSecurityPolicyStatus csp
-+
-+  # Returns information about the COEP/COOP isolation status.
-+  experimental command getSecurityIsolationStatus
-+    parameters
-+      # If no frameId is provided, the status of the target is provided.
-+      optional Page.FrameId frameId
-+    returns
-+      SecurityIsolationStatus status
-+
-+  # Enables tracking for the Reporting API, events generated by the Reporting API will now be delivered to the client.
-+  # Enabling triggers 'reportingApiReportAdded' for all existing reports.
-+  experimental command enableReportingApi
-+    parameters
-+      # Whether to enable or disable events for the Reporting API
-+      boolean enable
-+
-+  # The status of a Reporting API report.
-+  experimental type ReportStatus extends string
-+    enum
-+      # Report has been queued and no attempt has been made to deliver it yet,
-+      # or attempted previous upload failed (impermanently).
-+      Queued
-+      # There is an ongoing attempt to upload this report.
-+      Pending
-+      # Deletion of this report was requested while it was pending, so it will
-+      # be removed after possibly outstanding upload attempts complete (successful
-+      # or not).
-+      MarkedForRemoval
-+      # Successfully uploaded and MarkedForRemoval.
-+      Success
-+
-+  experimental type ReportId extends string
-+
-+  # An object representing a report generated by the Reporting API.
-+  experimental type ReportingApiReport extends object
-+    properties
-+      ReportId id
-+      # The URL of the document that triggered the report.
-+      string initiatorUrl
-+      # The name of the endpoint group that should be used to deliver the report.
-+      string destination
-+      # The type of the report (specifies the set of data that is contained in the report body).
-+      string type
-+      # When the report was generated.
-+      Network.TimeSinceEpoch timestamp
-+      # How many uploads deep the related request was.
-+      integer depth
-+      # The number of delivery attempts made so far, not including an active attempt.
-+      integer completedAttempts
-+      object body
-+      ReportStatus status
-+
-+  # Is sent whenever a new report is added.
-+  # And after 'enableReportingApi' for all existing reports.
-+  experimental event reportingApiReportAdded
-+    parameters
-+      ReportingApiReport report
-+
-+  experimental event reportingApiReportUpdated
-+    parameters
-+      ReportingApiReport report
-+
-+  experimental type ReportingApiEndpoint extends object
-+    properties
-+      # The URL of the endpoint to which reports may be delivered.
-+      string url
-+      # Name of the endpoint group.
-+      string groupName
-+
-+  experimental event reportingApiEndpointsChangedForOrigin
-+    parameters
-+      # Origin of the document(s) which configured the endpoints.
-+      string origin
-+      array of ReportingApiEndpoint endpoints
-+
-+  # An object providing the result of a network resource load.
-+  experimental type LoadNetworkResourcePageResult extends object
-+    properties
-+      boolean success
-+      # Optional values used for error reporting.
-+      optional number netError
-+      optional string netErrorName
-+      optional number httpStatusCode
-+      # If successful, one of the following two fields holds the result.
-+      optional IO.StreamHandle stream
-+      # Response headers.
-+      optional Network.Headers headers
-+
-+  # An options object that may be extended later to better support CORS,
-+  # CORB and streaming.
-+  experimental type LoadNetworkResourceOptions extends object
-+    properties
-+      boolean disableCache
-+      boolean includeCredentials
-+
-+  # Fetches the resource and returns the content.
-+  experimental command loadNetworkResource
-+    parameters
-+      # Frame id to get the resource for. Mandatory for frame targets, and
-+      # should be omitted for worker targets.
-+      optional Page.FrameId frameId
-+      # URL of the resource to get content for.
-+      string url
-+      # Options for the request.
-+      LoadNetworkResourceOptions options
-+    returns
-+      LoadNetworkResourcePageResult resource
-+
-+  # Sets Controls for third-party cookie access
-+  # Page reload is required before the new cookie behavior will be observed
-+  experimental command setCookieControls
-+    parameters
-+      # Whether 3pc restriction is enabled.
-+      boolean enableThirdPartyCookieRestriction
-+
-+      # Whether 3pc grace period exception should be enabled; false by default.
-+      boolean disableThirdPartyCookieMetadata
-+
-+      # Whether 3pc heuristics exceptions should be enabled; false by default.
-+      boolean disableThirdPartyCookieHeuristics
-diff --git a/pdl/domains/Overlay.pdl b/pdl/domains/Overlay.pdl
-new file mode 100644
-index 00000000..689e42d8
---- /dev/null
-+++ b/pdl/domains/Overlay.pdl
-@@ -0,0 +1,498 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain provides various functionality related to drawing atop the inspected page.
-+experimental domain Overlay
-+  depends on DOM
-+  depends on Page
-+  depends on Runtime
-+
-+  # Configuration data for drawing the source order of an elements children.
-+  type SourceOrderConfig extends object
-+    properties
-+      # the color to outline the given element in.
-+      DOM.RGBA parentOutlineColor
-+      # the color to outline the child elements in.
-+      DOM.RGBA childOutlineColor
-+
-+  # Configuration data for the highlighting of Grid elements.
-+  type GridHighlightConfig extends object
-+    properties
-+      # Whether the extension lines from grid cells to the rulers should be shown (default: false).
-+      optional boolean showGridExtensionLines
-+      # Show Positive line number labels (default: false).
-+      optional boolean showPositiveLineNumbers
-+      # Show Negative line number labels (default: false).
-+      optional boolean showNegativeLineNumbers
-+      # Show area name labels (default: false).
-+      optional boolean showAreaNames
-+      # Show line name labels (default: false).
-+      optional boolean showLineNames
-+      # Show track size labels (default: false).
-+      optional boolean showTrackSizes
-+      # The grid container border highlight color (default: transparent).
-+      optional DOM.RGBA gridBorderColor
-+      # The cell border color (default: transparent). Deprecated, please use rowLineColor and columnLineColor instead.
-+      deprecated optional DOM.RGBA cellBorderColor
-+      # The row line color (default: transparent).
-+      optional DOM.RGBA rowLineColor
-+      # The column line color (default: transparent).
-+      optional DOM.RGBA columnLineColor
-+      # Whether the grid border is dashed (default: false).
-+      optional boolean gridBorderDash
-+      # Whether the cell border is dashed (default: false). Deprecated, please us rowLineDash and columnLineDash instead.
-+      deprecated optional boolean cellBorderDash
-+      # Whether row lines are dashed (default: false).
-+      optional boolean rowLineDash
-+      # Whether column lines are dashed (default: false).
-+      optional boolean columnLineDash
-+      # The row gap highlight fill color (default: transparent).
-+      optional DOM.RGBA rowGapColor
-+      # The row gap hatching fill color (default: transparent).
-+      optional DOM.RGBA rowHatchColor
-+      # The column gap highlight fill color (default: transparent).
-+      optional DOM.RGBA columnGapColor
-+      # The column gap hatching fill color (default: transparent).
-+      optional DOM.RGBA columnHatchColor
-+      # The named grid areas border color (Default: transparent).
-+      optional DOM.RGBA areaBorderColor
-+      # The grid container background color (Default: transparent).
-+      optional DOM.RGBA gridBackgroundColor
-+
-+  # Configuration data for the highlighting of Flex container elements.
-+  type FlexContainerHighlightConfig extends object
-+    properties
-+      # The style of the container border
-+      optional LineStyle containerBorder
-+      # The style of the separator between lines
-+      optional LineStyle lineSeparator
-+      # The style of the separator between items
-+      optional LineStyle itemSeparator
-+      # Style of content-distribution space on the main axis (justify-content).
-+      optional BoxStyle mainDistributedSpace
-+      # Style of content-distribution space on the cross axis (align-content).
-+      optional BoxStyle crossDistributedSpace
-+      # Style of empty space caused by row gaps (gap/row-gap).
-+      optional BoxStyle rowGapSpace
-+      # Style of empty space caused by columns gaps (gap/column-gap).
-+      optional BoxStyle columnGapSpace
-+      # Style of the self-alignment line (align-items).
-+      optional LineStyle crossAlignment
-+
-+  # Configuration data for the highlighting of Flex item elements.
-+  type FlexItemHighlightConfig extends object
-+    properties
-+      # Style of the box representing the item's base size
-+      optional BoxStyle baseSizeBox
-+      # Style of the border around the box representing the item's base size
-+      optional LineStyle baseSizeBorder
-+      # Style of the arrow representing if the item grew or shrank
-+      optional LineStyle flexibilityArrow
-+
-+  # Style information for drawing a line.
-+  type LineStyle extends object
-+    properties
-+      # The color of the line (default: transparent)
-+      optional DOM.RGBA color
-+      # The line pattern (default: solid)
-+      optional enum pattern
-+        dashed
-+        dotted
-+
-+  # Style information for drawing a box.
-+  type BoxStyle extends object
-+    properties
-+      # The background color for the box (default: transparent)
-+      optional DOM.RGBA fillColor
-+      # The hatching color for the box (default: transparent)
-+      optional DOM.RGBA hatchColor
-+
-+  type ContrastAlgorithm extends string
-+    enum
-+      aa
-+      aaa
-+      apca
-+
-+  # Configuration data for the highlighting of page elements.
-+  type HighlightConfig extends object
-+    properties
-+      # Whether the node info tooltip should be shown (default: false).
-+      optional boolean showInfo
-+      # Whether the node styles in the tooltip (default: false).
-+      optional boolean showStyles
-+      # Whether the rulers should be shown (default: false).
-+      optional boolean showRulers
-+      # Whether the a11y info should be shown (default: true).
-+      optional boolean showAccessibilityInfo
-+      # Whether the extension lines from node to the rulers should be shown (default: false).
-+      optional boolean showExtensionLines
-+      # The content box highlight fill color (default: transparent).
-+      optional DOM.RGBA contentColor
-+      # The padding highlight fill color (default: transparent).
-+      optional DOM.RGBA paddingColor
-+      # The border highlight fill color (default: transparent).
-+      optional DOM.RGBA borderColor
-+      # The margin highlight fill color (default: transparent).
-+      optional DOM.RGBA marginColor
-+      # The event target element highlight fill color (default: transparent).
-+      optional DOM.RGBA eventTargetColor
-+      # The shape outside fill color (default: transparent).
-+      optional DOM.RGBA shapeColor
-+      # The shape margin fill color (default: transparent).
-+      optional DOM.RGBA shapeMarginColor
-+      # The grid layout color (default: transparent).
-+      optional DOM.RGBA cssGridColor
-+      # The color format used to format color styles (default: hex).
-+      optional ColorFormat colorFormat
-+      # The grid layout highlight configuration (default: all transparent).
-+      optional GridHighlightConfig gridHighlightConfig
-+      # The flex container highlight configuration (default: all transparent).
-+      optional FlexContainerHighlightConfig flexContainerHighlightConfig
-+      # The flex item highlight configuration (default: all transparent).
-+      optional FlexItemHighlightConfig flexItemHighlightConfig
-+      # The contrast algorithm to use for the contrast ratio (default: aa).
-+      optional ContrastAlgorithm contrastAlgorithm
-+      # The container query container highlight configuration (default: all transparent).
-+      optional ContainerQueryContainerHighlightConfig containerQueryContainerHighlightConfig
-+
-+  type ColorFormat extends string
-+    enum
-+      rgb
-+      hsl
-+      hwb
-+      hex
-+
-+  # Configurations for Persistent Grid Highlight
-+  type GridNodeHighlightConfig extends object
-+    properties
-+      # A descriptor for the highlight appearance.
-+      GridHighlightConfig gridHighlightConfig
-+      # Identifier of the node to highlight.
-+      DOM.NodeId nodeId
-+
-+  type FlexNodeHighlightConfig extends object
-+    properties
-+      # A descriptor for the highlight appearance of flex containers.
-+      FlexContainerHighlightConfig flexContainerHighlightConfig
-+      # Identifier of the node to highlight.
-+      DOM.NodeId nodeId
-+
-+  type ScrollSnapContainerHighlightConfig extends object
-+    properties
-+      # The style of the snapport border (default: transparent)
-+      optional LineStyle snapportBorder
-+      # The style of the snap area border (default: transparent)
-+      optional LineStyle snapAreaBorder
-+      # The margin highlight fill color (default: transparent).
-+      optional DOM.RGBA scrollMarginColor
-+      # The padding highlight fill color (default: transparent).
-+      optional DOM.RGBA scrollPaddingColor
-+
-+  type ScrollSnapHighlightConfig extends object
-+    properties
-+      # A descriptor for the highlight appearance of scroll snap containers.
-+      ScrollSnapContainerHighlightConfig scrollSnapContainerHighlightConfig
-+      # Identifier of the node to highlight.
-+      DOM.NodeId nodeId
-+
-+  # Configuration for dual screen hinge
-+  type HingeConfig extends object
-+    properties
-+      # A rectangle represent hinge
-+      DOM.Rect rect
-+      # The content box highlight fill color (default: a dark color).
-+      optional DOM.RGBA contentColor
-+      # The content box highlight outline color (default: transparent).
-+      optional DOM.RGBA outlineColor
-+
-+  # Configuration for Window Controls Overlay
-+  type WindowControlsOverlayConfig extends object
-+    properties
-+      # Whether the title bar CSS should be shown when emulating the Window Controls Overlay.
-+      boolean showCSS
-+      # Selected platforms to show the overlay.
-+      string selectedPlatform
-+      # The theme color defined in app manifest.
-+      string themeColor
-+
-+  type ContainerQueryHighlightConfig extends object
-+    properties
-+      # A descriptor for the highlight appearance of container query containers.
-+      ContainerQueryContainerHighlightConfig containerQueryContainerHighlightConfig
-+      # Identifier of the container node to highlight.
-+      DOM.NodeId nodeId
-+
-+  type ContainerQueryContainerHighlightConfig extends object
-+    properties
-+      # The style of the container border.
-+      optional LineStyle containerBorder
-+      # The style of the descendants' borders.
-+      optional LineStyle descendantBorder
-+
-+  type IsolatedElementHighlightConfig extends object
-+    properties
-+      # A descriptor for the highlight appearance of an element in isolation mode.
-+      IsolationModeHighlightConfig isolationModeHighlightConfig
-+      # Identifier of the isolated element to highlight.
-+      DOM.NodeId nodeId
-+
-+  type IsolationModeHighlightConfig extends object
-+    properties
-+      # The fill color of the resizers (default: transparent).
-+      optional DOM.RGBA resizerColor
-+      # The fill color for resizer handles (default: transparent).
-+      optional DOM.RGBA resizerHandleColor
-+      # The fill color for the mask covering non-isolated elements (default: transparent).
-+      optional DOM.RGBA maskColor
-+
-+  type InspectMode extends string
-+    enum
-+      searchForNode
-+      searchForUAShadowDOM
-+      captureAreaScreenshot
-+      none
-+
-+  # Disables domain notifications.
-+  command disable
-+
-+  # Enables domain notifications.
-+  command enable
-+
-+  # For testing.
-+  command getHighlightObjectForTest
-+    parameters
-+      # Id of the node to get highlight object for.
-+      DOM.NodeId nodeId
-+      # Whether to include distance info.
-+      optional boolean includeDistance
-+      # Whether to include style info.
-+      optional boolean includeStyle
-+      # The color format to get config with (default: hex).
-+      optional ColorFormat colorFormat
-+      # Whether to show accessibility info (default: true).
-+      optional boolean showAccessibilityInfo
-+    returns
-+      # Highlight data for the node.
-+      object highlight
-+
-+  # For Persistent Grid testing.
-+  command getGridHighlightObjectsForTest
-+    parameters
-+      # Ids of the node to get highlight object for.
-+      array of DOM.NodeId nodeIds
-+    returns
-+      # Grid Highlight data for the node ids provided.
-+      object highlights
-+
-+  # For Source Order Viewer testing.
-+  command getSourceOrderHighlightObjectForTest
-+    parameters
-+      # Id of the node to highlight.
-+      DOM.NodeId nodeId
-+    returns
-+      # Source order highlight data for the node id provided.
-+      object highlight
-+
-+  # Hides any highlight.
-+  command hideHighlight
-+
-+  # Highlights owner element of the frame with given id.
-+  # Deprecated: Doesn't work reliably and cannot be fixed due to process
-+  # separation (the owner node might be in a different process). Determine
-+  # the owner node in the client and use highlightNode.
-+  deprecated command highlightFrame
-+    parameters
-+      # Identifier of the frame to highlight.
-+      Page.FrameId frameId
-+      # The content box highlight fill color (default: transparent).
-+      optional DOM.RGBA contentColor
-+      # The content box highlight outline color (default: transparent).
-+      optional DOM.RGBA contentOutlineColor
-+
-+  # Highlights DOM node with given id or with the given JavaScript object wrapper. Either nodeId or
-+  # objectId must be specified.
-+  command highlightNode
-+    parameters
-+      # A descriptor for the highlight appearance.
-+      HighlightConfig highlightConfig
-+      # Identifier of the node to highlight.
-+      optional DOM.NodeId nodeId
-+      # Identifier of the backend node to highlight.
-+      optional DOM.BackendNodeId backendNodeId
-+      # JavaScript object id of the node to be highlighted.
-+      optional Runtime.RemoteObjectId objectId
-+      # Selectors to highlight relevant nodes.
-+      optional string selector
-+
-+  # Highlights given quad. Coordinates are absolute with respect to the main frame viewport.
-+  command highlightQuad
-+    parameters
-+      # Quad to highlight
-+      DOM.Quad quad
-+      # The highlight fill color (default: transparent).
-+      optional DOM.RGBA color
-+      # The highlight outline color (default: transparent).
-+      optional DOM.RGBA outlineColor
-+
-+  # Highlights given rectangle. Coordinates are absolute with respect to the main frame viewport.
-+  # Issue: the method does not handle device pixel ratio (DPR) correctly.
-+  # The coordinates currently have to be adjusted by the client
-+  # if DPR is not 1 (see crbug.com/437807128).
-+  command highlightRect
-+    parameters
-+      # X coordinate
-+      integer x
-+      # Y coordinate
-+      integer y
-+      # Rectangle width
-+      integer width
-+      # Rectangle height
-+      integer height
-+      # The highlight fill color (default: transparent).
-+      optional DOM.RGBA color
-+      # The highlight outline color (default: transparent).
-+      optional DOM.RGBA outlineColor
-+
-+  # Highlights the source order of the children of the DOM node with given id or with the given
-+  # JavaScript object wrapper. Either nodeId or objectId must be specified.
-+  command highlightSourceOrder
-+    parameters
-+      # A descriptor for the appearance of the overlay drawing.
-+      SourceOrderConfig sourceOrderConfig
-+      # Identifier of the node to highlight.
-+      optional DOM.NodeId nodeId
-+      # Identifier of the backend node to highlight.
-+      optional DOM.BackendNodeId backendNodeId
-+      # JavaScript object id of the node to be highlighted.
-+      optional Runtime.RemoteObjectId objectId
-+
-+  # Enters the 'inspect' mode. In this mode, elements that user is hovering over are highlighted.
-+  # Backend then generates 'inspectNodeRequested' event upon element selection.
-+  command setInspectMode
-+    parameters
-+      # Set an inspection mode.
-+      InspectMode mode
-+      # A descriptor for the highlight appearance of hovered-over nodes. May be omitted if `enabled
-+      # == false`.
-+      optional HighlightConfig highlightConfig
-+
-+  # Highlights owner element of all frames detected to be ads.
-+  command setShowAdHighlights
-+    parameters
-+      # True for showing ad highlights
-+      boolean show
-+
-+  command setPausedInDebuggerMessage
-+    parameters
-+      # The message to display, also triggers resume and step over controls.
-+      optional string message
-+
-+  # Requests that backend shows debug borders on layers
-+  command setShowDebugBorders
-+    parameters
-+      # True for showing debug borders
-+      boolean show
-+
-+  # Requests that backend shows the FPS counter
-+  command setShowFPSCounter
-+    parameters
-+      # True for showing the FPS counter
-+      boolean show
-+
-+  # Highlight multiple elements with the CSS Grid overlay.
-+  command setShowGridOverlays
-+    parameters
-+      # An array of node identifiers and descriptors for the highlight appearance.
-+      array of GridNodeHighlightConfig gridNodeHighlightConfigs
-+
-+  command setShowFlexOverlays
-+    parameters
-+      # An array of node identifiers and descriptors for the highlight appearance.
-+      array of FlexNodeHighlightConfig flexNodeHighlightConfigs
-+
-+  command setShowScrollSnapOverlays
-+    parameters
-+      # An array of node identifiers and descriptors for the highlight appearance.
-+      array of ScrollSnapHighlightConfig scrollSnapHighlightConfigs
-+
-+  command setShowContainerQueryOverlays
-+    parameters
-+      # An array of node identifiers and descriptors for the highlight appearance.
-+      array of ContainerQueryHighlightConfig containerQueryHighlightConfigs
-+
-+  # Requests that backend shows paint rectangles
-+  command setShowPaintRects
-+    parameters
-+      # True for showing paint rectangles
-+      boolean result
-+
-+  # Requests that backend shows layout shift regions
-+  command setShowLayoutShiftRegions
-+    parameters
-+      # True for showing layout shift regions
-+      boolean result
-+
-+  # Requests that backend shows scroll bottleneck rects
-+  command setShowScrollBottleneckRects
-+    parameters
-+      # True for showing scroll bottleneck rects
-+      boolean show
-+
-+  # Deprecated, no longer has any effect.
-+  deprecated command setShowHitTestBorders
-+    parameters
-+      # True for showing hit-test borders
-+      boolean show
-+
-+  # Deprecated, no longer has any effect.
-+  deprecated command setShowWebVitals
-+    parameters
-+      boolean show
-+
-+  # Paints viewport size upon main frame resize.
-+  command setShowViewportSizeOnResize
-+    parameters
-+      # Whether to paint size or not.
-+      boolean show
-+
-+  # Add a dual screen device hinge
-+  command setShowHinge
-+    parameters
-+      # hinge data, null means hideHinge
-+      optional HingeConfig hingeConfig
-+
-+  # Show elements in isolation mode with overlays.
-+  command setShowIsolatedElements
-+    parameters
-+      # An array of node identifiers and descriptors for the highlight appearance.
-+      array of IsolatedElementHighlightConfig isolatedElementHighlightConfigs
-+
-+  # Show Window Controls Overlay for PWA
-+  command setShowWindowControlsOverlay
-+    parameters
-+      # Window Controls Overlay data, null means hide Window Controls Overlay
-+      optional WindowControlsOverlayConfig windowControlsOverlayConfig
-+
-+  # Fired when the node should be inspected. This happens after call to `setInspectMode` or when
-+  # user manually inspects an element.
-+  event inspectNodeRequested
-+    parameters
-+      # Id of the node to inspect.
-+      DOM.BackendNodeId backendNodeId
-+
-+  # Fired when the node should be highlighted. This happens after call to `setInspectMode`.
-+  event nodeHighlightRequested
-+    parameters
-+      DOM.NodeId nodeId
-+
-+  # Fired when user asks to capture screenshot of some area on the page.
-+  event screenshotRequested
-+    parameters
-+      # Viewport to capture, in device independent pixels (dip).
-+      Page.Viewport viewport
-+
-+  # Fired when user cancels the inspect mode.
-+  event inspectModeCanceled
-diff --git a/pdl/domains/PWA.pdl b/pdl/domains/PWA.pdl
-new file mode 100644
-index 00000000..1fd5973c
---- /dev/null
-+++ b/pdl/domains/PWA.pdl
-@@ -0,0 +1,142 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain allows interacting with the browser to control PWAs.
-+experimental domain PWA
-+
-+  # The following types are the replica of
-+  # https://crsrc.org/c/chrome/browser/web_applications/proto/web_app_os_integration_state.proto;drc=9910d3be894c8f142c977ba1023f30a656bc13fc;l=67
-+  type FileHandlerAccept extends object
-+    properties
-+      # New name of the mimetype according to
-+      # https://www.iana.org/assignments/media-types/media-types.xhtml
-+      string mediaType
-+      array of string fileExtensions
-+
-+  type FileHandler extends object
-+    properties
-+      string action
-+      array of FileHandlerAccept accepts
-+      string displayName
-+
-+  # Returns the following OS state for the given manifest id.
-+  command getOsAppState
-+    parameters
-+      # The id from the webapp's manifest file, commonly it's the url of the
-+      # site installing the webapp. See
-+      # https://web.dev/learn/pwa/web-app-manifest.
-+      string manifestId
-+    returns
-+      integer badgeCount
-+      array of FileHandler fileHandlers
-+
-+  # Installs the given manifest identity, optionally using the given installUrlOrBundleUrl
-+  #
-+  # IWA-specific install description:
-+  # manifestId corresponds to isolated-app:// + web_package::SignedWebBundleId
-+  #
-+  # File installation mode:
-+  # The installUrlOrBundleUrl can be either file:// or http(s):// pointing
-+  # to a signed web bundle (.swbn). In this case SignedWebBundleId must correspond to
-+  # The .swbn file's signing key.
-+  #
-+  # Dev proxy installation mode:
-+  # installUrlOrBundleUrl must be http(s):// that serves dev mode IWA.
-+  # web_package::SignedWebBundleId must be of type dev proxy.
-+  #
-+  # The advantage of dev proxy mode is that all changes to IWA
-+  # automatically will be reflected in the running app without
-+  # reinstallation.
-+  #
-+  # To generate bundle id for proxy mode:
-+  # 1. Generate 32 random bytes.
-+  # 2. Add a specific suffix 0x00 at the end.
-+  # 3. Encode the entire sequence using Base32 without padding.
-+  #
-+  # If Chrome is not in IWA dev
-+  # mode, the installation will fail, regardless of the state of the allowlist.
-+  command install
-+    parameters
-+      string manifestId
-+      # The location of the app or bundle overriding the one derived from the
-+      # manifestId.
-+      optional string installUrlOrBundleUrl
-+
-+  # Uninstalls the given manifest_id and closes any opened app windows.
-+  command uninstall
-+    parameters
-+      string manifestId
-+
-+  # Launches the installed web app, or an url in the same web app instead of the
-+  # default start url if it is provided. Returns a page Target.TargetID which
-+  # can be used to attach to via Target.attachToTarget or similar APIs.
-+  command launch
-+    parameters
-+      string manifestId
-+      optional string url
-+    returns
-+      # ID of the tab target created as a result.
-+      Target.TargetID targetId
-+
-+  # Opens one or more local files from an installed web app identified by its
-+  # manifestId. The web app needs to have file handlers registered to process
-+  # the files. The API returns one or more page Target.TargetIDs which can be
-+  # used to attach to via Target.attachToTarget or similar APIs.
-+  # If some files in the parameters cannot be handled by the web app, they will
-+  # be ignored. If none of the files can be handled, this API returns an error.
-+  # If no files are provided as the parameter, this API also returns an error.
-+  #
-+  # According to the definition of the file handlers in the manifest file, one
-+  # Target.TargetID may represent a page handling one or more files. The order
-+  # of the returned Target.TargetIDs is not guaranteed.
-+  #
-+  # TODO(crbug.com/339454034): Check the existences of the input files.
-+  command launchFilesInApp
-+    parameters
-+      string manifestId
-+      array of string files
-+    returns
-+      # IDs of the tab targets created as the result.
-+      array of Target.TargetID targetIds
-+
-+  # Opens the current page in its web app identified by the manifest id, needs
-+  # to be called on a page target. This function returns immediately without
-+  # waiting for the app to finish loading.
-+  command openCurrentPageInApp
-+    parameters
-+      string manifestId
-+
-+  # If user prefers opening the app in browser or an app window.
-+  type DisplayMode extends string
-+    enum
-+      standalone
-+      browser
-+
-+  # Changes user settings of the web app identified by its manifestId. If the
-+  # app was not installed, this command returns an error. Unset parameters will
-+  # be ignored; unrecognized values will cause an error.
-+  #
-+  # Unlike the ones defined in the manifest files of the web apps, these
-+  # settings are provided by the browser and controlled by the users, they
-+  # impact the way the browser handling the web apps.
-+  #
-+  # See the comment of each parameter.
-+  command changeAppUserSettings
-+    parameters
-+      string manifestId
-+      # If user allows the links clicked on by the user in the app's scope, or
-+      # extended scope if the manifest has scope extensions and the flags
-+      # `DesktopPWAsLinkCapturingWithScopeExtensions` and
-+      # `WebAppEnableScopeExtensions` are enabled.
-+      #
-+      # Note, the API does not support resetting the linkCapturing to the
-+      # initial value, uninstalling and installing the web app again will reset
-+      # it.
-+      #
-+      # TODO(crbug.com/339453269): Setting this value on ChromeOS is not
-+      # supported yet.
-+      optional boolean linkCapturing
-+      optional DisplayMode displayMode
-diff --git a/pdl/domains/Page.pdl b/pdl/domains/Page.pdl
-new file mode 100644
-index 00000000..036e058a
---- /dev/null
-+++ b/pdl/domains/Page.pdl
-@@ -0,0 +1,1767 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Actions and events related to the inspected page belong to the page domain.
-+domain Page
-+  depends on Debugger
-+  depends on DOM
-+  depends on IO
-+  depends on Network
-+  depends on Runtime
-+
-+  # Unique frame identifier.
-+  type FrameId extends string
-+
-+  # Indicates whether a frame has been identified as an ad.
-+  experimental type AdFrameType extends string
-+    enum
-+      none
-+      # This frame is a subframe of an ad frame.
-+      child
-+      # This frame is the root of an ad frame.
-+      root
-+
-+  experimental type AdFrameExplanation extends string
-+    enum
-+      ParentIsAd
-+      CreatedByAdScript
-+      MatchedBlockingRule
-+
-+  # Indicates whether a frame has been identified as an ad and why.
-+  experimental type AdFrameStatus extends object
-+    properties
-+      AdFrameType adFrameType
-+      optional array of AdFrameExplanation explanations
-+
-+  # Identifies the script which caused a script or frame to be labelled as an
-+  # ad.
-+  experimental type AdScriptId extends object
-+    properties
-+      # Script Id of the script which caused a script or frame to be labelled as
-+      # an ad.
-+      Runtime.ScriptId scriptId
-+      # Id of scriptId's debugger.
-+      Runtime.UniqueDebuggerId debuggerId
-+
-+  # Encapsulates the script ancestry and the root script filterlist rule that
-+  # caused the frame to be labelled as an ad. Only created when `ancestryChain`
-+  # is not empty.
-+  experimental type AdScriptAncestry extends object
-+    properties
-+      # A chain of `AdScriptId`s representing the ancestry of an ad script that
-+      # led to the creation of a frame. The chain is ordered from the script
-+      # itself (lower level) up to its root ancestor that was flagged by
-+      # filterlist.
-+      array of AdScriptId ancestryChain
-+      # The filterlist rule that caused the root (last) script in
-+      # `ancestryChain` to be ad-tagged. Only populated if the rule is
-+      # available.
-+      optional string rootScriptFilterlistRule
-+
-+  # Indicates whether the frame is a secure context and why it is the case.
-+  experimental type SecureContextType extends string
-+    enum
-+      # The origin is a secure context.
-+      Secure
-+      # The host is localhost and hence is considered secure.
-+      SecureLocalhost
-+      # The origin has an insecure scheme and is not localhost.
-+      InsecureScheme
-+      # One of the ancestor frames is not a secure context.
-+      InsecureAncestor
-+
-+  # Indicates whether the frame is cross-origin isolated and why it is the case.
-+  experimental type CrossOriginIsolatedContextType extends string
-+    enum
-+      # The origin is cross-origin isolated.
-+      Isolated
-+      # The origin is not cross-origin isolated.
-+      NotIsolated
-+      # The cross-origin isolation feature is disabled.
-+      NotIsolatedFeatureDisabled
-+
-+  experimental type GatedAPIFeatures extends string
-+    enum
-+      SharedArrayBuffers
-+      SharedArrayBuffersTransferAllowed
-+      PerformanceMeasureMemory
-+      PerformanceProfile
-+
-+  # All Permissions Policy features. This enum should match the one defined
-+  # in services/network/public/cpp/permissions_policy/permissions_policy_features.json5.
-+  # LINT.IfChange(PermissionsPolicyFeature)
-+  experimental type PermissionsPolicyFeature extends string
-+    enum
-+      accelerometer
-+      all-screens-capture
-+      ambient-light-sensor
-+      aria-notify
-+      attribution-reporting
-+      autoplay
-+      bluetooth
-+      browsing-topics
-+      camera
-+      captured-surface-control
-+      ch-dpr
-+      ch-device-memory
-+      ch-downlink
-+      ch-ect
-+      ch-prefers-color-scheme
-+      ch-prefers-reduced-motion
-+      ch-prefers-reduced-transparency
-+      ch-rtt
-+      ch-save-data
-+      ch-ua
-+      ch-ua-arch
-+      ch-ua-bitness
-+      ch-ua-high-entropy-values
-+      ch-ua-platform
-+      ch-ua-model
-+      ch-ua-mobile
-+      ch-ua-form-factors
-+      ch-ua-full-version
-+      ch-ua-full-version-list
-+      ch-ua-platform-version
-+      ch-ua-wow64
-+      ch-viewport-height
-+      ch-viewport-width
-+      ch-width
-+      clipboard-read
-+      clipboard-write
-+      compute-pressure
-+      controlled-frame
-+      cross-origin-isolated
-+      deferred-fetch
-+      deferred-fetch-minimal
-+      device-attributes
-+      digital-credentials-create
-+      digital-credentials-get
-+      direct-sockets
-+      direct-sockets-private
-+      display-capture
-+      document-domain
-+      encrypted-media
-+      execution-while-out-of-viewport
-+      execution-while-not-rendered
-+      fenced-unpartitioned-storage-read
-+      focus-without-user-activation
-+      fullscreen
-+      frobulate
-+      gamepad
-+      geolocation
-+      gyroscope
-+      hid
-+      identity-credentials-get
-+      idle-detection
-+      interest-cohort
-+      join-ad-interest-group
-+      keyboard-map
-+      language-detector
-+      language-model
-+      local-fonts
-+      local-network-access
-+      magnetometer
-+      media-playback-while-not-visible
-+      microphone
-+      midi
-+      on-device-speech-recognition
-+      otp-credentials
-+      payment
-+      picture-in-picture
-+      popins
-+      private-aggregation
-+      private-state-token-issuance
-+      private-state-token-redemption
-+      publickey-credentials-create
-+      publickey-credentials-get
-+      record-ad-auction-events
-+      rewriter
-+      run-ad-auction
-+      screen-wake-lock
-+      serial
-+      shared-autofill
-+      shared-storage
-+      shared-storage-select-url
-+      smart-card
-+      speaker-selection
-+      storage-access
-+      sub-apps
-+      summarizer
-+      sync-xhr
-+      translator
-+      unload
-+      usb
-+      usb-unrestricted
-+      vertical-scroll
-+      web-app-installation
-+      web-printing
-+      web-share
-+      window-management
-+      writer
-+      xr-spatial-tracking
-+  # LINT.ThenChange(//services/network/public/cpp/permissions_policy/permissions_policy_features.json5:PermissionsPolicy)
-+
-+  # Reason for a permissions policy feature to be disabled.
-+  experimental type PermissionsPolicyBlockReason extends string
-+    enum
-+      # Declaration in HTTP header.
-+      Header
-+      # Declaration in iframe attribute.
-+      IframeAttribute
-+      # Inside fenced frame.
-+      InFencedFrameTree
-+      # Inside an Isolated Application.
-+      InIsolatedApp
-+
-+  experimental type PermissionsPolicyBlockLocator extends object
-+    properties
-+      FrameId frameId
-+      PermissionsPolicyBlockReason blockReason
-+
-+  experimental type PermissionsPolicyFeatureState extends object
-+    properties
-+      PermissionsPolicyFeature feature
-+      boolean allowed
-+      optional PermissionsPolicyBlockLocator locator
-+
-+  # Origin Trial(https://www.chromium.org/blink/origin-trials) support.
-+  # Status for an Origin Trial token.
-+  experimental type OriginTrialTokenStatus extends string
-+    enum
-+      Success
-+      NotSupported
-+      Insecure
-+      Expired
-+      WrongOrigin
-+      InvalidSignature
-+      Malformed
-+      WrongVersion
-+      FeatureDisabled
-+      TokenDisabled
-+      FeatureDisabledForUser
-+      UnknownTrial
-+
-+  # Status for an Origin Trial.
-+  experimental type OriginTrialStatus extends string
-+    enum
-+      Enabled
-+      ValidTokenNotProvided
-+      OSNotSupported
-+      TrialNotAllowed
-+
-+  experimental type OriginTrialUsageRestriction extends string
-+    enum
-+      None
-+      Subset
-+
-+  experimental type OriginTrialToken extends object
-+    properties
-+      string origin
-+      boolean matchSubDomains
-+      string trialName
-+      Network.TimeSinceEpoch expiryTime
-+      boolean isThirdParty
-+      OriginTrialUsageRestriction usageRestriction
-+
-+  experimental type OriginTrialTokenWithStatus extends object
-+    properties
-+      string rawTokenText
-+      # `parsedToken` is present only when the token is extractable and
-+      # parsable.
-+      optional OriginTrialToken parsedToken
-+      OriginTrialTokenStatus status
-+
-+  experimental type OriginTrial extends object
-+    properties
-+      string trialName
-+      OriginTrialStatus status
-+      array of OriginTrialTokenWithStatus tokensWithStatus
-+
-+  # Additional information about the frame document's security origin.
-+  experimental type SecurityOriginDetails extends object
-+    properties
-+      # Indicates whether the frame document's security origin is one
-+      # of the local hostnames (e.g. "localhost") or IP addresses (IPv4
-+      # 127.0.0.0/8 or IPv6 ::1).
-+      boolean isLocalhost
-+
-+  # Information about the Frame on the page.
-+  type Frame extends object
-+    properties
-+      # Frame unique identifier.
-+      FrameId id
-+      # Parent frame identifier.
-+      optional FrameId parentId
-+      # Identifier of the loader associated with this frame.
-+      Network.LoaderId loaderId
-+      # Frame's name as specified in the tag.
-+      optional string name
-+      # Frame document's URL without fragment.
-+      string url
-+      # Frame document's URL fragment including the '#'.
-+      experimental optional string urlFragment
-+      # Frame document's registered domain, taking the public suffixes list into account.
-+      # Extracted from the Frame's url.
-+      # Example URLs: http://www.google.com/file.html -> "google.com"
-+      #               http://a.b.co.uk/file.html      -> "b.co.uk"
-+      experimental string domainAndRegistry
-+      # Frame document's security origin.
-+      string securityOrigin
-+      # Additional details about the frame document's security origin.
-+      experimental optional SecurityOriginDetails securityOriginDetails
-+      # Frame document's mimeType as determined by the browser.
-+      string mimeType
-+      # If the frame failed to load, this contains the URL that could not be loaded. Note that unlike url above, this URL may contain a fragment.
-+      experimental optional string unreachableUrl
-+      # Indicates whether this frame was tagged as an ad and why.
-+      experimental optional AdFrameStatus adFrameStatus
-+      # Indicates whether the main document is a secure context and explains why that is the case.
-+      experimental SecureContextType secureContextType
-+      # Indicates whether this is a cross origin isolated context.
-+      experimental CrossOriginIsolatedContextType crossOriginIsolatedContextType
-+      # Indicated which gated APIs / features are available.
-+      experimental array of GatedAPIFeatures gatedAPIFeatures
-+
-+  # Information about the Resource on the page.
-+  experimental type FrameResource extends object
-+    properties
-+      # Resource URL.
-+      string url
-+      # Type of this resource.
-+      Network.ResourceType type
-+      # Resource mimeType as determined by the browser.
-+      string mimeType
-+      # last-modified timestamp as reported by server.
-+      optional Network.TimeSinceEpoch lastModified
-+      # Resource content size.
-+      optional number contentSize
-+      # True if the resource failed to load.
-+      optional boolean failed
-+      # True if the resource was canceled during loading.
-+      optional boolean canceled
-+
-+  # Information about the Frame hierarchy along with their cached resources.
-+  experimental type FrameResourceTree extends object
-+    properties
-+      # Frame information for this tree item.
-+      Frame frame
-+      # Child frames.
-+      optional array of FrameResourceTree childFrames
-+      # Information about frame resources.
-+      array of FrameResource resources
-+
-+  # Information about the Frame hierarchy.
-+  type FrameTree extends object
-+    properties
-+      # Frame information for this tree item.
-+      Frame frame
-+      # Child frames.
-+      optional array of FrameTree childFrames
-+
-+  # Unique script identifier.
-+  type ScriptIdentifier extends string
-+
-+  # Transition type.
-+  type TransitionType extends string
-+    enum
-+      link
-+      typed
-+      address_bar
-+      auto_bookmark
-+      auto_subframe
-+      manual_subframe
-+      generated
-+      auto_toplevel
-+      form_submit
-+      reload
-+      keyword
-+      keyword_generated
-+      other
-+
-+  # Navigation history entry.
-+  type NavigationEntry extends object
-+    properties
-+      # Unique id of the navigation history entry.
-+      integer id
-+      # URL of the navigation history entry.
-+      string url
-+      # URL that the user typed in the url bar.
-+      string userTypedURL
-+      # Title of the navigation history entry.
-+      string title
-+      # Transition type.
-+      TransitionType transitionType
-+
-+  # Screencast frame metadata.
-+  experimental type ScreencastFrameMetadata extends object
-+    properties
-+      # Top offset in DIP.
-+      number offsetTop
-+      # Page scale factor.
-+      number pageScaleFactor
-+      # Device screen width in DIP.
-+      number deviceWidth
-+      # Device screen height in DIP.
-+      number deviceHeight
-+      # Position of horizontal scroll in CSS pixels.
-+      number scrollOffsetX
-+      # Position of vertical scroll in CSS pixels.
-+      number scrollOffsetY
-+      # Frame swap timestamp.
-+      optional Network.TimeSinceEpoch timestamp
-+
-+  # Javascript dialog type.
-+  type DialogType extends string
-+    enum
-+      alert
-+      confirm
-+      prompt
-+      beforeunload
-+
-+  # Error while paring app manifest.
-+  type AppManifestError extends object
-+    properties
-+      # Error message.
-+      string message
-+      # If critical, this is a non-recoverable parse error.
-+      integer critical
-+      # Error line.
-+      integer line
-+      # Error column.
-+      integer column
-+
-+  # Parsed app manifest properties.
-+  experimental type AppManifestParsedProperties extends object
-+    properties
-+      # Computed scope value
-+      string scope
-+
-+  # Layout viewport position and dimensions.
-+  type LayoutViewport extends object
-+    properties
-+      # Horizontal offset relative to the document (CSS pixels).
-+      integer pageX
-+      # Vertical offset relative to the document (CSS pixels).
-+      integer pageY
-+      # Width (CSS pixels), excludes scrollbar if present.
-+      integer clientWidth
-+      # Height (CSS pixels), excludes scrollbar if present.
-+      integer clientHeight
-+
-+  # Visual viewport position, dimensions, and scale.
-+  type VisualViewport extends object
-+    properties
-+      # Horizontal offset relative to the layout viewport (CSS pixels).
-+      number offsetX
-+      # Vertical offset relative to the layout viewport (CSS pixels).
-+      number offsetY
-+      # Horizontal offset relative to the document (CSS pixels).
-+      number pageX
-+      # Vertical offset relative to the document (CSS pixels).
-+      number pageY
-+      # Width (CSS pixels), excludes scrollbar if present.
-+      number clientWidth
-+      # Height (CSS pixels), excludes scrollbar if present.
-+      number clientHeight
-+      # Scale relative to the ideal viewport (size at width=device-width).
-+      number scale
-+      # Page zoom factor (CSS to device independent pixels ratio).
-+      optional number zoom
-+
-+  # Viewport for capturing screenshot.
-+  type Viewport extends object
-+    properties
-+      # X offset in device independent pixels (dip).
-+      number x
-+      # Y offset in device independent pixels (dip).
-+      number y
-+      # Rectangle width in device independent pixels (dip).
-+      number width
-+      # Rectangle height in device independent pixels (dip).
-+      number height
-+      # Page scale factor.
-+      number scale
-+
-+  # Generic font families collection.
-+  experimental type FontFamilies extends object
-+    properties
-+      # The standard font-family.
-+      optional string standard
-+      # The fixed font-family.
-+      optional string fixed
-+      # The serif font-family.
-+      optional string serif
-+      # The sansSerif font-family.
-+      optional string sansSerif
-+      # The cursive font-family.
-+      optional string cursive
-+      # The fantasy font-family.
-+      optional string fantasy
-+      # The math font-family.
-+      optional string math
-+
-+  # Font families collection for a script.
-+  experimental type ScriptFontFamilies extends object
-+    properties
-+      # Name of the script which these font families are defined for.
-+      string script
-+      # Generic font families collection for the script.
-+      FontFamilies fontFamilies
-+
-+  # Default font sizes.
-+  experimental type FontSizes extends object
-+    properties
-+      # Default standard font size.
-+      optional integer standard
-+      # Default fixed font size.
-+      optional integer fixed
-+
-+  experimental type ClientNavigationReason extends string
-+    enum
-+      anchorClick
-+      formSubmissionGet
-+      formSubmissionPost
-+      httpHeaderRefresh
-+      initialFrameNavigation
-+      metaTagRefresh
-+      other
-+      pageBlockInterstitial
-+      reload
-+      scriptInitiated
-+
-+  experimental type ClientNavigationDisposition extends string
-+    enum
-+      currentTab
-+      newTab
-+      newWindow
-+      download
-+
-+  experimental type InstallabilityErrorArgument extends object
-+    properties
-+      # Argument name (e.g. name:'minimum-icon-size-in-pixels').
-+      string name
-+      # Argument value (e.g. value:'64').
-+      string value
-+
-+  # The installability error
-+  experimental type InstallabilityError extends object
-+    properties
-+      # The error id (e.g. 'manifest-missing-suitable-icon').
-+      string errorId
-+      # The list of error arguments (e.g. {name:'minimum-icon-size-in-pixels', value:'64'}).
-+      array of InstallabilityErrorArgument errorArguments
-+
-+  # The referring-policy used for the navigation.
-+  experimental type ReferrerPolicy extends string
-+    enum
-+      noReferrer
-+      noReferrerWhenDowngrade
-+      origin
-+      originWhenCrossOrigin
-+      sameOrigin
-+      strictOrigin
-+      strictOriginWhenCrossOrigin
-+      unsafeUrl
-+
-+  # Per-script compilation cache parameters for `Page.produceCompilationCache`
-+  experimental type CompilationCacheParams extends object
-+    properties
-+      # The URL of the script to produce a compilation cache entry for.
-+      string url
-+      # A hint to the backend whether eager compilation is recommended.
-+      # (the actual compilation mode used is upon backend discretion).
-+      optional boolean eager
-+
-+  # Deprecated, please use addScriptToEvaluateOnNewDocument instead.
-+  experimental deprecated command addScriptToEvaluateOnLoad
-+    parameters
-+      string scriptSource
-+    returns
-+      # Identifier of the added script.
-+      ScriptIdentifier identifier
-+
-+  # Evaluates given script in every frame upon creation (before loading frame's scripts).
-+  command addScriptToEvaluateOnNewDocument
-+    parameters
-+      string source
-+      # If specified, creates an isolated world with the given name and evaluates given script in it.
-+      # This world name will be used as the ExecutionContextDescription::name when the corresponding
-+      # event is emitted.
-+      experimental optional string worldName
-+      # Specifies whether command line API should be available to the script, defaults
-+      # to false.
-+      experimental optional boolean includeCommandLineAPI
-+      # If true, runs the script immediately on existing execution contexts or worlds.
-+      # Default: false.
-+      experimental optional boolean runImmediately
-+    returns
-+      # Identifier of the added script.
-+      ScriptIdentifier identifier
-+
-+  # Brings page to front (activates tab).
-+  command bringToFront
-+
-+  # Capture page screenshot.
-+  command captureScreenshot
-+    parameters
-+      # Image compression format (defaults to png).
-+      optional enum format
-+        jpeg
-+        png
-+        webp
-+      # Compression quality from range [0..100] (jpeg only).
-+      optional integer quality
-+      # Capture the screenshot of a given region only.
-+      optional Viewport clip
-+      # Capture the screenshot from the surface, rather than the view. Defaults to true.
-+      experimental optional boolean fromSurface
-+      # Capture the screenshot beyond the viewport. Defaults to false.
-+      experimental optional boolean captureBeyondViewport
-+      # Optimize image encoding for speed, not for resulting size (defaults to false)
-+      experimental optional boolean optimizeForSpeed
-+    returns
-+      # Base64-encoded image data.
-+      binary data
-+
-+  # Returns a snapshot of the page as a string. For MHTML format, the serialization includes
-+  # iframes, shadow DOM, external resources, and element-inline styles.
-+  experimental command captureSnapshot
-+    parameters
-+      # Format (defaults to mhtml).
-+      optional enum format
-+        mhtml
-+    returns
-+      # Serialized page data.
-+      string data
-+
-+  # Clears the overridden device metrics.
-+  experimental deprecated command clearDeviceMetricsOverride
-+    # Use 'Emulation.clearDeviceMetricsOverride' instead
-+    redirect Emulation
-+
-+  # Clears the overridden Device Orientation.
-+  experimental deprecated command clearDeviceOrientationOverride
-+    # Use 'DeviceOrientation.clearDeviceOrientationOverride' instead
-+    redirect DeviceOrientation
-+
-+  # Clears the overridden Geolocation Position and Error.
-+  deprecated command clearGeolocationOverride
-+    # Use 'Emulation.clearGeolocationOverride' instead
-+    redirect Emulation
-+
-+  # Creates an isolated world for the given frame.
-+  command createIsolatedWorld
-+    parameters
-+      # Id of the frame in which the isolated world should be created.
-+      FrameId frameId
-+      # An optional name which is reported in the Execution Context.
-+      optional string worldName
-+      # Whether or not universal access should be granted to the isolated world. This is a powerful
-+      # option, use with caution.
-+      optional boolean grantUniveralAccess
-+    returns
-+      # Execution context of the isolated world.
-+      Runtime.ExecutionContextId executionContextId
-+
-+  # Deletes browser cookie with given name, domain and path.
-+  experimental deprecated command deleteCookie
-+    # Use 'Network.deleteCookie' instead
-+    redirect Network
-+    parameters
-+      # Name of the cookie to remove.
-+      string cookieName
-+      # URL to match cooke domain and path.
-+      string url
-+
-+  # Disables page domain notifications.
-+  command disable
-+
-+  # Enables page domain notifications.
-+  command enable
-+    parameters
-+      # If true, the `Page.fileChooserOpened` event will be emitted regardless of the state set by
-+      # `Page.setInterceptFileChooserDialog` command (default: false).
-+      experimental optional boolean enableFileChooserOpenedEvent
-+
-+  # The manifest of a webapp, see
-+  # https://www.w3.org/TR/appmanifest/#dfn-manifest.
-+  # Some fields do not appear in the standard since the API is designed to
-+  # expose more browser internal states.
-+
-+  experimental type FileFilter extends object
-+    properties
-+      optional string name
-+      optional array of string accepts
-+
-+  experimental type FileHandler extends object
-+    properties
-+      string action
-+      string name
-+      optional array of ImageResource icons
-+      # Mimic a map, name is the key, accepts is the value.
-+      optional array of FileFilter accepts
-+      # Won't repeat the enums, using string for easy comparison. Same as the
-+      # other enums below.
-+      string launchType
-+
-+  # The image definition used in both icon and screenshot.
-+  experimental type ImageResource extends object
-+    properties
-+      # The src field in the definition, but changing to url in favor of
-+      # consistency.
-+      string url
-+      optional string sizes
-+      optional string type
-+
-+  experimental type LaunchHandler extends object
-+    properties
-+      string clientMode
-+
-+  experimental type ProtocolHandler extends object
-+    properties
-+      string protocol
-+      string url
-+
-+  experimental type RelatedApplication extends object
-+    properties
-+      optional string id
-+      string url
-+
-+  experimental type ScopeExtension extends object
-+    properties
-+      # Instead of using tuple, this field always returns the serialized string
-+      # for easy understanding and comparison.
-+      string origin
-+      boolean hasOriginWildcard
-+
-+  experimental type Screenshot extends object
-+    properties
-+      ImageResource image
-+      string formFactor
-+      optional string label
-+
-+  experimental type ShareTarget extends object
-+    properties
-+      string action
-+      string method
-+      string enctype
-+      # Embed the ShareTargetParams
-+      optional string title
-+      optional string text
-+      optional string url
-+      optional array of FileFilter files
-+
-+  experimental type Shortcut extends object
-+    properties
-+      string name
-+      string url
-+
-+  experimental type WebAppManifest extends object
-+    properties
-+      optional string backgroundColor
-+      # The extra description provided by the manifest.
-+      optional string description
-+      optional string dir
-+      optional string display
-+      # The overrided display mode controlled by the user.
-+      optional array of string displayOverrides
-+      # The handlers to open files.
-+      optional array of FileHandler fileHandlers
-+      optional array of ImageResource icons
-+      optional string id
-+      optional string lang
-+      # TODO(crbug.com/1231886): This field is non-standard and part of a Chrome
-+      # experiment. See:
-+      # https://github.com/WICG/web-app-launch/blob/main/launch_handler.md
-+      optional LaunchHandler launchHandler
-+      optional string name
-+      optional string orientation
-+      optional boolean preferRelatedApplications
-+      # The handlers to open protocols.
-+      optional array of ProtocolHandler protocolHandlers
-+      optional array of RelatedApplication relatedApplications
-+      optional string scope
-+      # Non-standard, see
-+      # https://github.com/WICG/manifest-incubations/blob/gh-pages/scope_extensions-explainer.md
-+      optional array of ScopeExtension scopeExtensions
-+      # The screenshots used by chromium.
-+      optional array of Screenshot screenshots
-+      optional ShareTarget shareTarget
-+      optional string shortName
-+      optional array of Shortcut shortcuts
-+      optional string startUrl
-+      optional string themeColor
-+
-+  # Gets the processed manifest for this current document.
-+  #   This API always waits for the manifest to be loaded.
-+  #   If manifestId is provided, and it does not match the manifest of the
-+  #     current document, this API errors out.
-+  #   If there is not a loaded page, this API errors out immediately.
-+  command getAppManifest
-+    parameters
-+      optional string manifestId
-+    returns
-+      # Manifest location.
-+      string url
-+      array of AppManifestError errors
-+      # Manifest content.
-+      optional string data
-+      # Parsed manifest properties. Deprecated, use manifest instead.
-+      experimental deprecated optional AppManifestParsedProperties parsed
-+      experimental WebAppManifest manifest
-+
-+  experimental command getInstallabilityErrors
-+    returns
-+      array of InstallabilityError installabilityErrors
-+
-+  # Deprecated because it's not guaranteed that the returned icon is in fact the one used for PWA installation.
-+  experimental deprecated command getManifestIcons
-+    returns
-+      optional binary primaryIcon
-+
-+  # Returns the unique (PWA) app id.
-+  # Only returns values if the feature flag 'WebAppEnableManifestId' is enabled
-+  experimental command getAppId
-+    returns
-+      # App id, either from manifest's id attribute or computed from start_url
-+      optional string appId
-+      # Recommendation for manifest's id attribute to match current id computed from start_url
-+      optional string recommendedId
-+
-+  experimental command getAdScriptAncestry
-+    parameters
-+      FrameId frameId
-+    returns
-+      # The ancestry chain of ad script identifiers leading to this frame's
-+      # creation, along with the root script's filterlist rule. The ancestry
-+      # chain is ordered from the most immediate script (in the frame creation
-+      # stack) to more distant ancestors (that created the immediately preceding
-+      # script). Only sent if frame is labelled as an ad and ids are available.
-+      optional AdScriptAncestry adScriptAncestry
-+
-+  # Returns present frame tree structure.
-+  command getFrameTree
-+    returns
-+      # Present frame tree structure.
-+      FrameTree frameTree
-+
-+  # Returns metrics relating to the layouting of the page, such as viewport bounds/scale.
-+  command getLayoutMetrics
-+    returns
-+      # Deprecated metrics relating to the layout viewport. Is in device pixels. Use `cssLayoutViewport` instead.
-+      deprecated LayoutViewport layoutViewport
-+      # Deprecated metrics relating to the visual viewport. Is in device pixels. Use `cssVisualViewport` instead.
-+      deprecated VisualViewport visualViewport
-+      # Deprecated size of scrollable area. Is in DP. Use `cssContentSize` instead.
-+      deprecated DOM.Rect contentSize
-+      # Metrics relating to the layout viewport in CSS pixels.
-+      LayoutViewport cssLayoutViewport
-+      # Metrics relating to the visual viewport in CSS pixels.
-+      VisualViewport cssVisualViewport
-+      # Size of scrollable area in CSS pixels.
-+      DOM.Rect cssContentSize
-+
-+  # Returns navigation history for the current page.
-+  command getNavigationHistory
-+    returns
-+      # Index of the current navigation history entry.
-+      integer currentIndex
-+      # Array of navigation history entries.
-+      array of NavigationEntry entries
-+
-+  # Resets navigation history for the current page.
-+  command resetNavigationHistory
-+
-+  # Returns content of the given resource.
-+  experimental command getResourceContent
-+    parameters
-+      # Frame id to get resource for.
-+      FrameId frameId
-+      # URL of the resource to get content for.
-+      string url
-+    returns
-+      # Resource content.
-+      string content
-+      # True, if content was served as base64.
-+      boolean base64Encoded
-+
-+  # Returns present frame / resource tree structure.
-+  experimental command getResourceTree
-+    returns
-+      # Present frame / resource tree structure.
-+      FrameResourceTree frameTree
-+
-+  # Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).
-+  command handleJavaScriptDialog
-+    parameters
-+      # Whether to accept or dismiss the dialog.
-+      boolean accept
-+      # The text to enter into the dialog prompt before accepting. Used only if this is a prompt
-+      # dialog.
-+      optional string promptText
-+
-+  # Navigates current page to the given URL.
-+  command navigate
-+    parameters
-+      # URL to navigate the page to.
-+      string url
-+      # Referrer URL.
-+      optional string referrer
-+      # Intended transition type.
-+      optional TransitionType transitionType
-+      # Frame id to navigate, if not specified navigates the top frame.
-+      optional FrameId frameId
-+      # Referrer-policy used for the navigation.
-+      experimental optional ReferrerPolicy referrerPolicy
-+    returns
-+      # Frame id that has navigated (or failed to navigate)
-+      FrameId frameId
-+      # Loader identifier. This is omitted in case of same-document navigation,
-+      # as the previously committed loaderId would not change.
-+      optional Network.LoaderId loaderId
-+      # User friendly error message, present if and only if navigation has failed.
-+      optional string errorText
-+      # Whether the navigation resulted in a download.
-+      experimental optional boolean isDownload
-+
-+  # Navigates current page to the given history entry.
-+  command navigateToHistoryEntry
-+    parameters
-+      # Unique id of the entry to navigate to.
-+      integer entryId
-+
-+  # Print page as PDF.
-+  command printToPDF
-+    parameters
-+      # Paper orientation. Defaults to false.
-+      optional boolean landscape
-+      # Display header and footer. Defaults to false.
-+      optional boolean displayHeaderFooter
-+      # Print background graphics. Defaults to false.
-+      optional boolean printBackground
-+      # Scale of the webpage rendering. Defaults to 1.
-+      optional number scale
-+      # Paper width in inches. Defaults to 8.5 inches.
-+      optional number paperWidth
-+      # Paper height in inches. Defaults to 11 inches.
-+      optional number paperHeight
-+      # Top margin in inches. Defaults to 1cm (~0.4 inches).
-+      optional number marginTop
-+      # Bottom margin in inches. Defaults to 1cm (~0.4 inches).
-+      optional number marginBottom
-+      # Left margin in inches. Defaults to 1cm (~0.4 inches).
-+      optional number marginLeft
-+      # Right margin in inches. Defaults to 1cm (~0.4 inches).
-+      optional number marginRight
-+      # Paper ranges to print, one based, e.g., '1-5, 8, 11-13'. Pages are
-+      # printed in the document order, not in the order specified, and no
-+      # more than once.
-+      # Defaults to empty string, which implies the entire document is printed.
-+      # The page numbers are quietly capped to actual page count of the
-+      # document, and ranges beyond the end of the document are ignored.
-+      # If this results in no pages to print, an error is reported.
-+      # It is an error to specify a range with start greater than end.
-+      optional string pageRanges
-+      # HTML template for the print header. Should be valid HTML markup with following
-+      # classes used to inject printing values into them:
-+      # - `date`: formatted print date
-+      # - `title`: document title
-+      # - `url`: document location
-+      # - `pageNumber`: current page number
-+      # - `totalPages`: total pages in the document
-+      #
-+      # For example, `<span class=title></span>` would generate span containing the title.
-+      optional string headerTemplate
-+      # HTML template for the print footer. Should use the same format as the `headerTemplate`.
-+      optional string footerTemplate
-+      # Whether or not to prefer page size as defined by css. Defaults to false,
-+      # in which case the content will be scaled to fit the paper size.
-+      optional boolean preferCSSPageSize
-+      # return as stream
-+      experimental optional enum transferMode
-+        ReturnAsBase64
-+        ReturnAsStream
-+      # Whether or not to generate tagged (accessible) PDF. Defaults to embedder choice.
-+      experimental optional boolean generateTaggedPDF
-+      # Whether or not to embed the document outline into the PDF.
-+      experimental optional boolean generateDocumentOutline
-+    returns
-+      # Base64-encoded pdf data. Empty if |returnAsStream| is specified.
-+      binary data
-+      # A handle of the stream that holds resulting PDF data.
-+      experimental optional IO.StreamHandle stream
-+
-+  # Reloads given page optionally ignoring the cache.
-+  command reload
-+    parameters
-+      # If true, browser cache is ignored (as if the user pressed Shift+refresh).
-+      optional boolean ignoreCache
-+      # If set, the script will be injected into all frames of the inspected page after reload.
-+      # Argument will be ignored if reloading dataURL origin.
-+      optional string scriptToEvaluateOnLoad
-+      # If set, an error will be thrown if the target page's main frame's
-+      # loader id does not match the provided id. This prevents accidentally
-+      # reloading an unintended target in case there's a racing navigation.
-+      experimental optional Network.LoaderId loaderId
-+
-+  # Deprecated, please use removeScriptToEvaluateOnNewDocument instead.
-+  experimental deprecated command removeScriptToEvaluateOnLoad
-+    parameters
-+      ScriptIdentifier identifier
-+
-+  # Removes given script from the list.
-+  command removeScriptToEvaluateOnNewDocument
-+    parameters
-+      ScriptIdentifier identifier
-+
-+  # Acknowledges that a screencast frame has been received by the frontend.
-+  experimental command screencastFrameAck
-+    parameters
-+      # Frame number.
-+      integer sessionId
-+
-+  # Searches for given string in resource content.
-+  experimental command searchInResource
-+    parameters
-+      # Frame id for resource to search in.
-+      FrameId frameId
-+      # URL of the resource to search in.
-+      string url
-+      # String to search for.
-+      string query
-+      # If true, search is case sensitive.
-+      optional boolean caseSensitive
-+      # If true, treats string parameter as regex.
-+      optional boolean isRegex
-+    returns
-+      # List of search matches.
-+      array of Debugger.SearchMatch result
-+
-+  # Enable Chrome's experimental ad filter on all sites.
-+  experimental command setAdBlockingEnabled
-+    parameters
-+      # Whether to block ads.
-+      boolean enabled
-+
-+  # Enable page Content Security Policy by-passing.
-+  command setBypassCSP
-+    parameters
-+      # Whether to bypass page CSP.
-+      boolean enabled
-+
-+  # Get Permissions Policy state on given frame.
-+  experimental command getPermissionsPolicyState
-+    parameters
-+      FrameId frameId
-+    returns
-+      array of PermissionsPolicyFeatureState states
-+
-+  # Get Origin Trials on given frame.
-+  experimental command getOriginTrials
-+    parameters
-+      FrameId frameId
-+    returns
-+      array of OriginTrial originTrials
-+
-+  # Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
-+  # window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
-+  # query results).
-+  experimental deprecated command setDeviceMetricsOverride
-+    # Use 'Emulation.setDeviceMetricsOverride' instead
-+    redirect Emulation
-+    parameters
-+      # Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
-+      integer width
-+      # Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
-+      integer height
-+      # Overriding device scale factor value. 0 disables the override.
-+      number deviceScaleFactor
-+      # Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
-+      # autosizing and more.
-+      boolean mobile
-+      # Scale to apply to resulting view image.
-+      optional number scale
-+      # Overriding screen width value in pixels (minimum 0, maximum 10000000).
-+      optional integer screenWidth
-+      # Overriding screen height value in pixels (minimum 0, maximum 10000000).
-+      optional integer screenHeight
-+      # Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
-+      optional integer positionX
-+      # Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
-+      optional integer positionY
-+      # Do not set visible view size, rely upon explicit setVisibleSize call.
-+      optional boolean dontSetVisibleSize
-+      # Screen orientation override.
-+      optional Emulation.ScreenOrientation screenOrientation
-+      # The viewport dimensions and scale. If not set, the override is cleared.
-+      optional Viewport viewport
-+
-+  # Overrides the Device Orientation.
-+  experimental deprecated command setDeviceOrientationOverride
-+    # Use 'DeviceOrientation.setDeviceOrientationOverride' instead
-+    redirect DeviceOrientation
-+    parameters
-+      # Mock alpha
-+      number alpha
-+      # Mock beta
-+      number beta
-+      # Mock gamma
-+      number gamma
-+
-+  # Set generic font families.
-+  experimental command setFontFamilies
-+    parameters
-+      # Specifies font families to set. If a font family is not specified, it won't be changed.
-+      FontFamilies fontFamilies
-+      # Specifies font families to set for individual scripts.
-+      optional array of ScriptFontFamilies forScripts
-+
-+  # Set default font sizes.
-+  experimental command setFontSizes
-+    parameters
-+      # Specifies font sizes to set. If a font size is not specified, it won't be changed.
-+      FontSizes fontSizes
-+
-+  # Sets given markup as the document's HTML.
-+  command setDocumentContent
-+    parameters
-+      # Frame id to set HTML for.
-+      FrameId frameId
-+      # HTML content to set.
-+      string html
-+
-+  # Set the behavior when downloading a file.
-+  experimental deprecated command setDownloadBehavior
-+    parameters
-+      # Whether to allow all or deny all download requests, or use default Chrome behavior if
-+      # available (otherwise deny).
-+      enum behavior
-+        deny
-+        allow
-+        default
-+      # The default path to save downloaded files to. This is required if behavior is set to 'allow'
-+      optional string downloadPath
-+
-+  # Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
-+  # unavailable.
-+  deprecated command setGeolocationOverride
-+    # Use 'Emulation.setGeolocationOverride' instead
-+    redirect Emulation
-+    parameters
-+      # Mock latitude
-+      optional number latitude
-+      # Mock longitude
-+      optional number longitude
-+      # Mock accuracy
-+      optional number accuracy
-+
-+  # Controls whether page will emit lifecycle events.
-+  command setLifecycleEventsEnabled
-+    parameters
-+      # If true, starts emitting lifecycle events.
-+      boolean enabled
-+
-+  # Toggles mouse event-based touch event emulation.
-+  experimental deprecated command setTouchEmulationEnabled
-+    # Use 'Emulation.setTouchEmulationEnabled' instead
-+    redirect Emulation
-+    parameters
-+      # Whether the touch event emulation should be enabled.
-+      boolean enabled
-+      # Touch/gesture events configuration. Default: current platform.
-+      optional enum configuration
-+        mobile
-+        desktop
-+
-+  # Starts sending each frame using the `screencastFrame` event.
-+  experimental command startScreencast
-+    parameters
-+      # Image compression format.
-+      optional enum format
-+        jpeg
-+        png
-+      # Compression quality from range [0..100].
-+      optional integer quality
-+      # Maximum screenshot width.
-+      optional integer maxWidth
-+      # Maximum screenshot height.
-+      optional integer maxHeight
-+      # Send every n-th frame.
-+      optional integer everyNthFrame
-+
-+  # Force the page stop all navigations and pending resource fetches.
-+  command stopLoading
-+
-+  # Crashes renderer on the IO thread, generates minidumps.
-+  experimental command crash
-+
-+  # Tries to close page, running its beforeunload hooks, if any.
-+  command close
-+
-+  # Tries to update the web lifecycle state of the page.
-+  # It will transition the page to the given state according to:
-+  # https://github.com/WICG/web-lifecycle/
-+  experimental command setWebLifecycleState
-+    parameters
-+      # Target lifecycle state
-+      enum state
-+        frozen
-+        active
-+
-+  # Stops sending each frame in the `screencastFrame`.
-+  experimental command stopScreencast
-+
-+  # Requests backend to produce compilation cache for the specified scripts.
-+  # `scripts` are appended to the list of scripts for which the cache
-+  # would be produced. The list may be reset during page navigation.
-+  # When script with a matching URL is encountered, the cache is optionally
-+  # produced upon backend discretion, based on internal heuristics.
-+  # See also: `Page.compilationCacheProduced`.
-+  experimental command produceCompilationCache
-+    parameters
-+      array of CompilationCacheParams scripts
-+
-+  # Seeds compilation cache for given url. Compilation cache does not survive
-+  # cross-process navigation.
-+  experimental command addCompilationCache
-+    parameters
-+      string url
-+      # Base64-encoded data
-+      binary data
-+
-+  # Clears seeded compilation cache.
-+  experimental command clearCompilationCache
-+
-+  # Sets the Secure Payment Confirmation transaction mode.
-+  # https://w3c.github.io/secure-payment-confirmation/#sctn-automation-set-spc-transaction-mode
-+  experimental command setSPCTransactionMode
-+    parameters
-+      enum mode
-+        none
-+        autoAccept
-+        autoChooseToAuthAnotherWay
-+        autoReject
-+        autoOptOut
-+
-+  # Extensions for Custom Handlers API:
-+  # https://html.spec.whatwg.org/multipage/system-state.html#rph-automation
-+  experimental command setRPHRegistrationMode
-+    parameters
-+      enum mode
-+        none
-+        autoAccept
-+        autoReject
-+
-+  # Generates a report for testing.
-+  experimental command generateTestReport
-+    parameters
-+      # Message to be displayed in the report.
-+      string message
-+      # Specifies the endpoint group to deliver the report to.
-+      optional string group
-+
-+  # Pauses page execution. Can be resumed using generic Runtime.runIfWaitingForDebugger.
-+  experimental command waitForDebugger
-+
-+  # Intercept file chooser requests and transfer control to protocol clients.
-+  # When file chooser interception is enabled, native file chooser dialog is not shown.
-+  # Instead, a protocol event `Page.fileChooserOpened` is emitted.
-+  command setInterceptFileChooserDialog
-+    parameters
-+      boolean enabled
-+      # If true, cancels the dialog by emitting relevant events (if any)
-+      # in addition to not showing it if the interception is enabled
-+      # (default: false).
-+      experimental optional boolean cancel
-+
-+  event domContentEventFired
-+    parameters
-+      Network.MonotonicTime timestamp
-+
-+  # Emitted only when `page.interceptFileChooser` is enabled.
-+  event fileChooserOpened
-+    parameters
-+      # Id of the frame containing input node.
-+      experimental FrameId frameId
-+      # Input mode.
-+      enum mode
-+        selectSingle
-+        selectMultiple
-+      # Input node id. Only present for file choosers opened via an `<input type="file">` element.
-+      experimental optional DOM.BackendNodeId backendNodeId
-+
-+  # Fired when frame has been attached to its parent.
-+  event frameAttached
-+    parameters
-+      # Id of the frame that has been attached.
-+      FrameId frameId
-+      # Parent frame identifier.
-+      FrameId parentFrameId
-+      # JavaScript stack trace of when frame was attached, only set if frame initiated from script.
-+      optional Runtime.StackTrace stack
-+
-+  # Fired when frame no longer has a scheduled navigation.
-+  deprecated event frameClearedScheduledNavigation
-+    parameters
-+      # Id of the frame that has cleared its scheduled navigation.
-+      FrameId frameId
-+
-+  # Fired when frame has been detached from its parent.
-+  event frameDetached
-+    parameters
-+      # Id of the frame that has been detached.
-+      FrameId frameId
-+      experimental enum reason
-+        # The frame is removed from the DOM.
-+        remove
-+        # The frame is being swapped out in favor of an out-of-process iframe.
-+        # A new frame target will be created (see Target.attachedToTarget).
-+        swap
-+
-+  # Fired before frame subtree is detached. Emitted before any frame of the
-+  # subtree is actually detached.
-+  experimental event frameSubtreeWillBeDetached
-+    parameters
-+      # Id of the frame that is the root of the subtree that will be detached.
-+      FrameId frameId
-+
-+  # The type of a frameNavigated event.
-+  experimental type NavigationType extends string
-+    enum
-+      Navigation
-+      BackForwardCacheRestore
-+
-+  # Fired once navigation of the frame has completed. Frame is now associated with the new loader.
-+  event frameNavigated
-+    parameters
-+      # Frame object.
-+      Frame frame
-+      experimental NavigationType type
-+
-+  # Fired when opening document to write to.
-+  experimental event documentOpened
-+    parameters
-+      # Frame object.
-+      Frame frame
-+
-+  experimental event frameResized
-+
-+  # Fired when a navigation starts. This event is fired for both
-+  # renderer-initiated and browser-initiated navigations. For renderer-initiated
-+  # navigations, the event is fired after `frameRequestedNavigation`.
-+  # Navigation may still be cancelled after the event is issued. Multiple events
-+  # can be fired for a single navigation, for example, when a same-document
-+  # navigation becomes a cross-document navigation (such as in the case of a
-+  # frameset).
-+  experimental event frameStartedNavigating
-+    parameters
-+      # ID of the frame that is being navigated.
-+      FrameId frameId
-+      # The URL the navigation started with. The final URL can be different.
-+      string url
-+      # Loader identifier. Even though it is present in case of same-document
-+      # navigation, the previously committed loaderId would not change unless
-+      # the navigation changes from a same-document to a cross-document
-+      # navigation.
-+      Network.LoaderId loaderId
-+      enum navigationType
-+        reload
-+        reloadBypassingCache
-+        restore
-+        restoreWithPost
-+        historySameDocument
-+        historyDifferentDocument
-+        sameDocument
-+        differentDocument
-+
-+  # Fired when a renderer-initiated navigation is requested.
-+  # Navigation may still be cancelled after the event is issued.
-+  experimental event frameRequestedNavigation
-+    parameters
-+      # Id of the frame that is being navigated.
-+      FrameId frameId
-+      # The reason for the navigation.
-+      ClientNavigationReason reason
-+      # The destination URL for the requested navigation.
-+      string url
-+      # The disposition for the navigation.
-+      ClientNavigationDisposition disposition
-+
-+  # Fired when frame schedules a potential navigation.
-+  deprecated event frameScheduledNavigation
-+    parameters
-+      # Id of the frame that has scheduled a navigation.
-+      FrameId frameId
-+      # Delay (in seconds) until the navigation is scheduled to begin. The navigation is not
-+      # guaranteed to start.
-+      number delay
-+      # The reason for the navigation.
-+      ClientNavigationReason reason
-+      # The destination URL for the scheduled navigation.
-+      string url
-+
-+  # Fired when frame has started loading.
-+  experimental event frameStartedLoading
-+    parameters
-+      # Id of the frame that has started loading.
-+      FrameId frameId
-+
-+  # Fired when frame has stopped loading.
-+  experimental event frameStoppedLoading
-+    parameters
-+      # Id of the frame that has stopped loading.
-+      FrameId frameId
-+
-+  # Fired when page is about to start a download.
-+  # Deprecated. Use Browser.downloadWillBegin instead.
-+  experimental deprecated event downloadWillBegin
-+    parameters
-+      # Id of the frame that caused download to begin.
-+      FrameId frameId
-+      # Global unique identifier of the download.
-+      string guid
-+      # URL of the resource being downloaded.
-+      string url
-+      # Suggested file name of the resource (the actual name of the file saved on disk may differ).
-+      string suggestedFilename
-+
-+  # Fired when download makes progress. Last call has |done| == true.
-+  # Deprecated. Use Browser.downloadProgress instead.
-+  experimental deprecated event downloadProgress
-+    parameters
-+      # Global unique identifier of the download.
-+      string guid
-+      # Total expected bytes to download.
-+      number totalBytes
-+      # Total bytes received.
-+      number receivedBytes
-+      # Download status.
-+      enum state
-+        inProgress
-+        completed
-+        canceled
-+
-+  # Fired when interstitial page was hidden
-+  event interstitialHidden
-+
-+  # Fired when interstitial page was shown
-+  event interstitialShown
-+
-+  # Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been
-+  # closed.
-+  event javascriptDialogClosed
-+    parameters
-+      # Frame id.
-+      experimental FrameId frameId
-+      # Whether dialog was confirmed.
-+      boolean result
-+      # User input in case of prompt.
-+      string userInput
-+
-+  # Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to
-+  # open.
-+  event javascriptDialogOpening
-+    parameters
-+      # Frame url.
-+      string url
-+      # Frame id.
-+      experimental FrameId frameId
-+      # Message that will be displayed by the dialog.
-+      string message
-+      # Dialog type.
-+      DialogType type
-+      # True iff browser is capable showing or acting on the given dialog. When browser has no
-+      # dialog handler for given target, calling alert while Page domain is engaged will stall
-+      # the page execution. Execution can be resumed via calling Page.handleJavaScriptDialog.
-+      boolean hasBrowserHandler
-+      # Default dialog prompt.
-+      optional string defaultPrompt
-+
-+  # Fired for lifecycle events (navigation, load, paint, etc) in the current
-+  # target (including local frames).
-+  event lifecycleEvent
-+    parameters
-+      # Id of the frame.
-+      FrameId frameId
-+      # Loader identifier. Empty string if the request is fetched from worker.
-+      Network.LoaderId loaderId
-+      string name
-+      Network.MonotonicTime timestamp
-+
-+  # List of not restored reasons for back-forward cache.
-+  experimental type BackForwardCacheNotRestoredReason extends string
-+    enum
-+      NotPrimaryMainFrame
-+      BackForwardCacheDisabled
-+      RelatedActiveContentsExist
-+      HTTPStatusNotOK
-+      SchemeNotHTTPOrHTTPS
-+      Loading
-+      WasGrantedMediaAccess
-+      DisableForRenderFrameHostCalled
-+      DomainNotAllowed
-+      HTTPMethodNotGET
-+      SubframeIsNavigating
-+      Timeout
-+      CacheLimit
-+      JavaScriptExecution
-+      RendererProcessKilled
-+      RendererProcessCrashed
-+      SchedulerTrackedFeatureUsed
-+      ConflictingBrowsingInstance
-+      CacheFlushed
-+      ServiceWorkerVersionActivation
-+      SessionRestored
-+      ServiceWorkerPostMessage
-+      EnteredBackForwardCacheBeforeServiceWorkerHostAdded
-+      RenderFrameHostReused_SameSite
-+      RenderFrameHostReused_CrossSite
-+      ServiceWorkerClaim
-+      IgnoreEventAndEvict
-+      HaveInnerContents
-+      TimeoutPuttingInCache
-+      BackForwardCacheDisabledByLowMemory
-+      BackForwardCacheDisabledByCommandLine
-+      NetworkRequestDatapipeDrainedAsBytesConsumer
-+      NetworkRequestRedirected
-+      NetworkRequestTimeout
-+      NetworkExceedsBufferLimit
-+      NavigationCancelledWhileRestoring
-+      NotMostRecentNavigationEntry
-+      BackForwardCacheDisabledForPrerender
-+      UserAgentOverrideDiffers
-+      ForegroundCacheLimit
-+      BrowsingInstanceNotSwapped
-+      BackForwardCacheDisabledForDelegate
-+      UnloadHandlerExistsInMainFrame
-+      UnloadHandlerExistsInSubFrame
-+      ServiceWorkerUnregistration
-+      CacheControlNoStore
-+      CacheControlNoStoreCookieModified
-+      CacheControlNoStoreHTTPOnlyCookieModified
-+      NoResponseHead
-+      Unknown
-+      ActivationNavigationsDisallowedForBug1234857
-+      ErrorDocument
-+      FencedFramesEmbedder
-+      CookieDisabled
-+      HTTPAuthRequired
-+      CookieFlushed
-+      BroadcastChannelOnMessage
-+      WebViewSettingsChanged
-+      WebViewJavaScriptObjectChanged
-+      WebViewMessageListenerInjected
-+      WebViewSafeBrowsingAllowlistChanged
-+      WebViewDocumentStartJavascriptChanged
-+      #Blocklisted features
-+      WebSocket
-+      WebTransport
-+      WebRTC
-+      MainResourceHasCacheControlNoStore
-+      MainResourceHasCacheControlNoCache
-+      SubresourceHasCacheControlNoStore
-+      SubresourceHasCacheControlNoCache
-+      ContainsPlugins
-+      DocumentLoaded
-+      OutstandingNetworkRequestOthers
-+      RequestedMIDIPermission
-+      RequestedAudioCapturePermission
-+      RequestedVideoCapturePermission
-+      RequestedBackForwardCacheBlockedSensors
-+      RequestedBackgroundWorkPermission
-+      BroadcastChannel
-+      WebXR
-+      SharedWorker
-+      SharedWorkerMessage
-+      WebLocks
-+      WebHID
-+      WebShare
-+      RequestedStorageAccessGrant
-+      WebNfc
-+      OutstandingNetworkRequestFetch
-+      OutstandingNetworkRequestXHR
-+      AppBanner
-+      Printing
-+      WebDatabase
-+      PictureInPicture
-+      SpeechRecognizer
-+      IdleManager
-+      PaymentManager
-+      SpeechSynthesis
-+      KeyboardLock
-+      WebOTPService
-+      OutstandingNetworkRequestDirectSocket
-+      InjectedJavascript
-+      InjectedStyleSheet
-+      KeepaliveRequest
-+      IndexedDBEvent
-+      Dummy
-+      JsNetworkRequestReceivedCacheControlNoStoreResource
-+      WebRTCSticky
-+      WebTransportSticky
-+      WebSocketSticky
-+      SmartCard
-+      LiveMediaStreamTrack
-+      UnloadHandler
-+      ParserAborted
-+      # Disabled for RenderFrameHost reasons
-+      # See content/browser/renderer_host/back_forward_cache_disable.h for explanations.
-+      ContentSecurityHandler
-+      ContentWebAuthenticationAPI
-+      ContentFileChooser
-+      ContentSerial
-+      ContentFileSystemAccess
-+      ContentMediaDevicesDispatcherHost
-+      ContentWebBluetooth
-+      ContentWebUSB
-+      ContentMediaSessionService
-+      ContentScreenReader
-+      ContentDiscarded
-+
-+      # See components/back_forward_cache/back_forward_cache_disable.h for explanations.
-+      EmbedderPopupBlockerTabHelper
-+      EmbedderSafeBrowsingTriggeredPopupBlocker
-+      EmbedderSafeBrowsingThreatDetails
-+      EmbedderAppBannerManager
-+      EmbedderDomDistillerViewerSource
-+      EmbedderDomDistillerSelfDeletingRequestDelegate
-+      EmbedderOomInterventionTabHelper
-+      EmbedderOfflinePage
-+      EmbedderChromePasswordManagerClientBindCredentialManager
-+      EmbedderPermissionRequestManager
-+      EmbedderModalDialog
-+      EmbedderExtensions
-+      EmbedderExtensionMessaging
-+      EmbedderExtensionMessagingForOpenPort
-+      EmbedderExtensionSentMessageToCachedFrame
-+      RequestedByWebViewClient
-+      PostMessageByWebViewClient
-+      CacheControlNoStoreDeviceBoundSessionTerminated
-+      CacheLimitPrunedOnModerateMemoryPressure
-+      CacheLimitPrunedOnCriticalMemoryPressure
-+
-+  # Types of not restored reasons for back-forward cache.
-+  experimental type BackForwardCacheNotRestoredReasonType extends string
-+    enum
-+      SupportPending
-+      PageSupportNeeded
-+      Circumstantial
-+
-+  experimental type BackForwardCacheBlockingDetails extends object
-+    properties
-+      # Url of the file where blockage happened. Optional because of tests.
-+      optional string url
-+      # Function name where blockage happened. Optional because of anonymous functions and tests.
-+      optional string function
-+      # Line number in the script (0-based).
-+      integer lineNumber
-+      # Column number in the script (0-based).
-+      integer columnNumber
-+
-+  experimental type BackForwardCacheNotRestoredExplanation extends object
-+    properties
-+      # Type of the reason
-+      BackForwardCacheNotRestoredReasonType type
-+      # Not restored reason
-+      BackForwardCacheNotRestoredReason reason
-+      # Context associated with the reason. The meaning of this context is
-+      # dependent on the reason:
-+      # - EmbedderExtensionSentMessageToCachedFrame: the extension ID.
-+      #
-+      optional string context
-+      optional array of BackForwardCacheBlockingDetails details
-+
-+  experimental type BackForwardCacheNotRestoredExplanationTree extends object
-+    properties
-+      # URL of each frame
-+      string url
-+      # Not restored reasons of each frame
-+      array of BackForwardCacheNotRestoredExplanation explanations
-+      # Array of children frame
-+      array of BackForwardCacheNotRestoredExplanationTree children
-+
-+  # Fired for failed bfcache history navigations if BackForwardCache feature is enabled. Do
-+  # not assume any ordering with the Page.frameNavigated event. This event is fired only for
-+  # main-frame history navigation where the document changes (non-same-document navigations),
-+  # when bfcache navigation fails.
-+  experimental event backForwardCacheNotUsed
-+    parameters
-+      # The loader id for the associated navigation.
-+      Network.LoaderId loaderId
-+      # The frame id of the associated frame.
-+      FrameId frameId
-+      # Array of reasons why the page could not be cached. This must not be empty.
-+      array of BackForwardCacheNotRestoredExplanation notRestoredExplanations
-+      # Tree structure of reasons why the page could not be cached for each frame.
-+      optional BackForwardCacheNotRestoredExplanationTree notRestoredExplanationsTree
-+
-+  event loadEventFired
-+    parameters
-+      Network.MonotonicTime timestamp
-+
-+  # Fired when same-document navigation happens, e.g. due to history API usage or anchor navigation.
-+  experimental event navigatedWithinDocument
-+    parameters
-+      # Id of the frame.
-+      FrameId frameId
-+      # Frame's new url.
-+      string url
-+      # Navigation type
-+      enum navigationType
-+        # Navigation due to fragment navigation.
-+        fragment
-+        # Navigation due to history API usage.
-+        historyApi
-+        # Navigation due to other reasons.
-+        other
-+
-+
-+  # Compressed image data requested by the `startScreencast`.
-+  experimental event screencastFrame
-+    parameters
-+      # Base64-encoded compressed image.
-+      binary data
-+      # Screencast frame metadata.
-+      ScreencastFrameMetadata metadata
-+      # Frame number.
-+      integer sessionId
-+
-+  # Fired when the page with currently enabled screencast was shown or hidden `.
-+  experimental event screencastVisibilityChanged
-+    parameters
-+      # True if the page is visible.
-+      boolean visible
-+
-+  # Fired when a new window is going to be opened, via window.open(), link click, form submission,
-+  # etc.
-+  event windowOpen
-+    parameters
-+      # The URL for the new window.
-+      string url
-+      # Window name.
-+      string windowName
-+      # An array of enabled window features.
-+      array of string windowFeatures
-+      # Whether or not it was triggered by user gesture.
-+      boolean userGesture
-+
-+  # Issued for every compilation cache generated.
-+  experimental event compilationCacheProduced
-+    parameters
-+      string url
-+      # Base64-encoded data
-+      binary data
-+
-+  # Enable/disable prerendering manually.
-+  #
-+  # This command is a short-term solution for https://crbug.com/1440085.
-+  # See https://docs.google.com/document/d/12HVmFxYj5Jc-eJr5OmWsa2bqTJsbgGLKI6ZIyx0_wpA
-+  # for more details.
-+  #
-+  # TODO(https://crbug.com/1440085): Remove this once Puppeteer supports tab targets.
-+  experimental command setPrerenderingAllowed
-+    parameters
-+      boolean isAllowed
-diff --git a/pdl/domains/Performance.pdl b/pdl/domains/Performance.pdl
-new file mode 100644
-index 00000000..ace5249d
---- /dev/null
-+++ b/pdl/domains/Performance.pdl
-@@ -0,0 +1,54 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+domain Performance
-+
-+  # Run-time execution metric.
-+  type Metric extends object
-+    properties
-+      # Metric name.
-+      string name
-+      # Metric value.
-+      number value
-+
-+  # Disable collecting and reporting metrics.
-+  command disable
-+
-+  # Enable collecting and reporting metrics.
-+  command enable
-+    parameters
-+      # Time domain to use for collecting and reporting duration metrics.
-+      optional enum timeDomain
-+        # Use monotonically increasing abstract time (default).
-+        timeTicks
-+        # Use thread running time.
-+        threadTicks
-+
-+  # Sets time domain to use for collecting and reporting duration metrics.
-+  # Note that this must be called before enabling metrics collection. Calling
-+  # this method while metrics collection is enabled returns an error.
-+  experimental deprecated command setTimeDomain
-+    parameters
-+      # Time domain
-+      enum timeDomain
-+        # Use monotonically increasing abstract time (default).
-+        timeTicks
-+        # Use thread running time.
-+        threadTicks
-+
-+  # Retrieve current values of run-time metrics.
-+  command getMetrics
-+    returns
-+      # Current values for run-time metrics.
-+      array of Metric metrics
-+
-+  # Current values of the metrics.
-+  event metrics
-+    parameters
-+      # Current values of the metrics.
-+      array of Metric metrics
-+      # Timestamp title.
-+      string title
-diff --git a/pdl/domains/PerformanceTimeline.pdl b/pdl/domains/PerformanceTimeline.pdl
-new file mode 100644
-index 00000000..aa18d2bb
---- /dev/null
-+++ b/pdl/domains/PerformanceTimeline.pdl
-@@ -0,0 +1,71 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Reporting of performance timeline events, as specified in
-+# https://w3c.github.io/performance-timeline/#dom-performanceobserver.
-+experimental domain PerformanceTimeline
-+  depends on DOM
-+  depends on Network
-+
-+  # See https://github.com/WICG/LargestContentfulPaint and largest_contentful_paint.idl
-+  type LargestContentfulPaint extends object
-+    properties
-+      Network.TimeSinceEpoch renderTime
-+      Network.TimeSinceEpoch loadTime
-+      # The number of pixels being painted.
-+      number size
-+      # The id attribute of the element, if available.
-+      optional string elementId
-+      # The URL of the image (may be trimmed).
-+      optional string url
-+      optional DOM.BackendNodeId nodeId
-+
-+  type LayoutShiftAttribution extends object
-+    properties
-+      DOM.Rect previousRect
-+      DOM.Rect currentRect
-+      optional DOM.BackendNodeId nodeId
-+
-+  # See https://wicg.github.io/layout-instability/#sec-layout-shift and layout_shift.idl
-+  type LayoutShift extends object
-+    properties
-+      # Score increment produced by this event.
-+      number value
-+      boolean hadRecentInput
-+      Network.TimeSinceEpoch lastInputTime
-+      array of LayoutShiftAttribution sources
-+
-+  type TimelineEvent extends object
-+    properties
-+      # Identifies the frame that this event is related to. Empty for non-frame targets.
-+      Page.FrameId frameId
-+      # The event type, as specified in https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype
-+      # This determines which of the optional "details" fields is present.
-+      string type
-+      # Name may be empty depending on the type.
-+      string name
-+      # Time in seconds since Epoch, monotonically increasing within document lifetime.
-+      Network.TimeSinceEpoch time
-+      # Event duration, if applicable.
-+      optional number duration
-+      optional LargestContentfulPaint lcpDetails
-+      optional LayoutShift layoutShiftDetails
-+
-+  # Previously buffered events would be reported before method returns.
-+  # See also: timelineEventAdded
-+  command enable
-+    parameters
-+      # The types of event to report, as specified in
-+      # https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype
-+      # The specified filter overrides any previous filters, passing empty
-+      # filter disables recording.
-+      # Note that not all types exposed to the web platform are currently supported.
-+      array of string eventTypes
-+
-+  # Sent when a performance timeline event is added. See reportPerformanceTimeline method.
-+  event timelineEventAdded
-+    parameters
-+      TimelineEvent event
-diff --git a/pdl/domains/Preload.pdl b/pdl/domains/Preload.pdl
-new file mode 100644
-index 00000000..50976854
---- /dev/null
-+++ b/pdl/domains/Preload.pdl
-@@ -0,0 +1,290 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain Preload
-+  # Unique id
-+  type RuleSetId extends string
-+
-+  # Corresponds to SpeculationRuleSet
-+  type RuleSet extends object
-+    properties
-+      RuleSetId id
-+      # Identifies a document which the rule set is associated with.
-+      Network.LoaderId loaderId
-+      # Source text of JSON representing the rule set. If it comes from
-+      # `<script>` tag, it is the textContent of the node. Note that it is
-+      # a JSON for valid case.
-+      #
-+      # See also:
-+      # - https://wicg.github.io/nav-speculation/speculation-rules.html
-+      # - https://github.com/WICG/nav-speculation/blob/main/triggers.md
-+      string sourceText
-+      # A speculation rule set is either added through an inline
-+      # `<script>` tag or through an external resource via the
-+      # 'Speculation-Rules' HTTP header. For the first case, we include
-+      # the BackendNodeId of the relevant `<script>` tag. For the second
-+      # case, we include the external URL where the rule set was loaded
-+      # from, and also RequestId if Network domain is enabled.
-+      #
-+      # See also:
-+      # - https://wicg.github.io/nav-speculation/speculation-rules.html#speculation-rules-script
-+      # - https://wicg.github.io/nav-speculation/speculation-rules.html#speculation-rules-header
-+      optional DOM.BackendNodeId backendNodeId
-+      optional string url
-+      optional Network.RequestId requestId
-+      # Error information
-+      # `errorMessage` is null iff `errorType` is null.
-+      optional RuleSetErrorType errorType
-+      # TODO(https://crbug.com/1425354): Replace this property with structured error.
-+      deprecated optional string errorMessage
-+
-+  type RuleSetErrorType extends string
-+    enum
-+      SourceIsNotJsonObject
-+      InvalidRulesSkipped
-+      InvalidRulesetLevelTag
-+
-+  # The type of preloading attempted. It corresponds to
-+  # mojom::SpeculationAction (although PrefetchWithSubresources is omitted as it
-+  # isn't being used by clients).
-+  type SpeculationAction extends string
-+    enum
-+      Prefetch
-+      Prerender
-+
-+  # Corresponds to mojom::SpeculationTargetHint.
-+  # See https://github.com/WICG/nav-speculation/blob/main/triggers.md#window-name-targeting-hints
-+  type SpeculationTargetHint extends string
-+    enum
-+      Blank
-+      Self
-+
-+  # A key that identifies a preloading attempt.
-+  #
-+  # The url used is the url specified by the trigger (i.e. the initial URL), and
-+  # not the final url that is navigated to. For example, prerendering allows
-+  # same-origin main frame navigations during the attempt, but the attempt is
-+  # still keyed with the initial URL.
-+  type PreloadingAttemptKey extends object
-+    properties
-+      Network.LoaderId loaderId
-+      SpeculationAction action
-+      string url
-+      optional SpeculationTargetHint targetHint
-+
-+  # Lists sources for a preloading attempt, specifically the ids of rule sets
-+  # that had a speculation rule that triggered the attempt, and the
-+  # BackendNodeIds of <a href> or <area href> elements that triggered the
-+  # attempt (in the case of attempts triggered by a document rule). It is
-+  # possible for multiple rule sets and links to trigger a single attempt.
-+  type PreloadingAttemptSource extends object
-+    properties
-+      PreloadingAttemptKey key
-+      array of RuleSetId ruleSetIds
-+      array of DOM.BackendNodeId nodeIds
-+
-+  # Chrome manages different types of preloads together using a
-+  # concept of preloading pipeline. For example, if a site uses a
-+  # SpeculationRules for prerender, Chrome first starts a prefetch and
-+  # then upgrades it to prerender.
-+  #
-+  # CDP events for them are emitted separately but they share
-+  # `PreloadPipelineId`.
-+  type PreloadPipelineId extends string
-+
-+  command enable
-+
-+  command disable
-+
-+  # Upsert. Currently, it is only emitted when a rule set added.
-+  event ruleSetUpdated
-+    parameters
-+      RuleSet ruleSet
-+
-+  event ruleSetRemoved
-+    parameters
-+      RuleSetId id
-+
-+  # List of FinalStatus reasons for Prerender2.
-+  type PrerenderFinalStatus extends string
-+    enum
-+      Activated
-+      Destroyed
-+      LowEndDevice
-+      InvalidSchemeRedirect
-+      InvalidSchemeNavigation
-+      NavigationRequestBlockedByCsp
-+      MojoBinderPolicy
-+      RendererProcessCrashed
-+      RendererProcessKilled
-+      Download
-+      TriggerDestroyed
-+      NavigationNotCommitted
-+      NavigationBadHttpStatus
-+      ClientCertRequested
-+      NavigationRequestNetworkError
-+      CancelAllHostsForTesting
-+      DidFailLoad
-+      Stop
-+      SslCertificateError
-+      LoginAuthRequested
-+      UaChangeRequiresReload
-+      BlockedByClient
-+      AudioOutputDeviceRequested
-+      MixedContent
-+      TriggerBackgrounded
-+      MemoryLimitExceeded
-+      DataSaverEnabled
-+      TriggerUrlHasEffectiveUrl
-+      ActivatedBeforeStarted
-+      InactivePageRestriction
-+      StartFailed
-+      TimeoutBackgrounded
-+      CrossSiteRedirectInInitialNavigation
-+      CrossSiteNavigationInInitialNavigation
-+      SameSiteCrossOriginRedirectNotOptInInInitialNavigation
-+      SameSiteCrossOriginNavigationNotOptInInInitialNavigation
-+      ActivationNavigationParameterMismatch
-+      ActivatedInBackground
-+      EmbedderHostDisallowed
-+      ActivationNavigationDestroyedBeforeSuccess
-+      TabClosedByUserGesture
-+      TabClosedWithoutUserGesture
-+      PrimaryMainFrameRendererProcessCrashed
-+      PrimaryMainFrameRendererProcessKilled
-+      ActivationFramePolicyNotCompatible
-+      PreloadingDisabled
-+      BatterySaverEnabled
-+      ActivatedDuringMainFrameNavigation
-+      PreloadingUnsupportedByWebContents
-+      CrossSiteRedirectInMainFrameNavigation
-+      CrossSiteNavigationInMainFrameNavigation
-+      SameSiteCrossOriginRedirectNotOptInInMainFrameNavigation
-+      SameSiteCrossOriginNavigationNotOptInInMainFrameNavigation
-+      MemoryPressureOnTrigger
-+      MemoryPressureAfterTriggered
-+      PrerenderingDisabledByDevTools
-+      SpeculationRuleRemoved
-+      ActivatedWithAuxiliaryBrowsingContexts
-+      MaxNumOfRunningEagerPrerendersExceeded
-+      MaxNumOfRunningNonEagerPrerendersExceeded
-+      MaxNumOfRunningEmbedderPrerendersExceeded
-+      PrerenderingUrlHasEffectiveUrl
-+      RedirectedPrerenderingUrlHasEffectiveUrl
-+      ActivationUrlHasEffectiveUrl
-+      JavaScriptInterfaceAdded
-+      JavaScriptInterfaceRemoved
-+      AllPrerenderingCanceled
-+      WindowClosed
-+      SlowNetwork
-+      OtherPrerenderedPageActivated
-+      V8OptimizerDisabled
-+      PrerenderFailedDuringPrefetch
-+      BrowsingDataRemoved
-+      PrerenderHostReused
-+
-+  # Fired when a preload enabled state is updated.
-+  event preloadEnabledStateUpdated
-+    parameters
-+      boolean disabledByPreference
-+      boolean disabledByDataSaver
-+      boolean disabledByBatterySaver
-+      boolean disabledByHoldbackPrefetchSpeculationRules
-+      boolean disabledByHoldbackPrerenderSpeculationRules
-+
-+  # Preloading status values, see also PreloadingTriggeringOutcome. This
-+  # status is shared by prefetchStatusUpdated and prerenderStatusUpdated.
-+  type PreloadingStatus extends string
-+    enum
-+      Pending
-+      Running
-+      Ready
-+      Success
-+      Failure
-+      # PreloadingTriggeringOutcome which not used by prefetch nor prerender.
-+      NotSupported
-+
-+  # TODO(https://crbug.com/1384419): revisit the list of PrefetchStatus and
-+  # filter out the ones that aren't necessary to the developers.
-+  type PrefetchStatus extends string
-+    enum
-+      # Prefetch is not disabled by PrefetchHeldback.
-+      PrefetchAllowed
-+      PrefetchFailedIneligibleRedirect
-+      PrefetchFailedInvalidRedirect
-+      PrefetchFailedMIMENotSupported
-+      PrefetchFailedNetError
-+      PrefetchFailedNon2XX
-+      PrefetchEvictedAfterBrowsingDataRemoved
-+      PrefetchEvictedAfterCandidateRemoved
-+      PrefetchEvictedForNewerPrefetch
-+      PrefetchHeldback
-+      # A previous prefetch to the origin got a HTTP 503 response with an
-+      # Retry-After header that has no elapsed yet.
-+      PrefetchIneligibleRetryAfter
-+      PrefetchIsPrivacyDecoy
-+      PrefetchIsStale
-+      PrefetchNotEligibleBrowserContextOffTheRecord
-+      PrefetchNotEligibleDataSaverEnabled
-+      PrefetchNotEligibleExistingProxy
-+      PrefetchNotEligibleHostIsNonUnique
-+      PrefetchNotEligibleNonDefaultStoragePartition
-+      PrefetchNotEligibleSameSiteCrossOriginPrefetchRequiredProxy
-+      PrefetchNotEligibleSchemeIsNotHttps
-+      PrefetchNotEligibleUserHasCookies
-+      PrefetchNotEligibleUserHasServiceWorker
-+      PrefetchNotEligibleUserHasServiceWorkerNoFetchHandler
-+      PrefetchNotEligibleRedirectFromServiceWorker
-+      PrefetchNotEligibleRedirectToServiceWorker
-+      PrefetchNotEligibleBatterySaverEnabled
-+      PrefetchNotEligiblePreloadingDisabled
-+      PrefetchNotFinishedInTime
-+      PrefetchNotStarted
-+      PrefetchNotUsedCookiesChanged
-+      PrefetchProxyNotAvailable
-+      # The response of the prefetch is used for the next navigation. This is
-+      # the final successful state.
-+      PrefetchResponseUsed
-+      # The prefetch finished successfully but was never used.
-+      PrefetchSuccessfulButNotUsed
-+      PrefetchNotUsedProbeFailed
-+
-+  # Fired when a prefetch attempt is updated.
-+  event prefetchStatusUpdated
-+    parameters
-+      PreloadingAttemptKey key
-+      PreloadPipelineId pipelineId
-+      # The frame id of the frame initiating prefetch.
-+      Page.FrameId initiatingFrameId
-+      string prefetchUrl
-+      PreloadingStatus status
-+      PrefetchStatus prefetchStatus
-+      Network.RequestId requestId
-+
-+  # Information of headers to be displayed when the header mismatch occurred.
-+  type PrerenderMismatchedHeaders extends object
-+    properties
-+      string headerName
-+      optional string initialValue
-+      optional string activationValue
-+
-+  # Fired when a prerender attempt is updated.
-+  event prerenderStatusUpdated
-+    parameters
-+      PreloadingAttemptKey key
-+      PreloadPipelineId pipelineId
-+      PreloadingStatus status
-+      optional PrerenderFinalStatus prerenderStatus
-+      # This is used to give users more information about the name of Mojo interface
-+      # that is incompatible with prerender and has caused the cancellation of the attempt.
-+      optional string disallowedMojoInterface
-+      optional array of PrerenderMismatchedHeaders mismatchedHeaders
-+
-+  # Send a list of sources for all preloading attempts in a document.
-+  event preloadingAttemptSourcesUpdated
-+    parameters
-+      Network.LoaderId loaderId
-+      array of PreloadingAttemptSource preloadingAttemptSources
-diff --git a/pdl/domains/Security.pdl b/pdl/domains/Security.pdl
-new file mode 100644
-index 00000000..35c5ed03
---- /dev/null
-+++ b/pdl/domains/Security.pdl
-@@ -0,0 +1,196 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+domain Security
-+
-+  # An internal certificate ID value.
-+  type CertificateId extends integer
-+
-+  # A description of mixed content (HTTP resources on HTTPS pages), as defined by
-+  # https://www.w3.org/TR/mixed-content/#categories
-+  type MixedContentType extends string
-+    enum
-+      blockable
-+      optionally-blockable
-+      none
-+
-+  # The security level of a page or resource.
-+  type SecurityState extends string
-+    enum
-+      unknown
-+      neutral
-+      insecure
-+      secure
-+      info
-+      insecure-broken
-+
-+  # Details about the security state of the page certificate.
-+  experimental type CertificateSecurityState extends object
-+    properties
-+      # Protocol name (e.g. "TLS 1.2" or "QUIC").
-+      string protocol
-+      # Key Exchange used by the connection, or the empty string if not applicable.
-+      string keyExchange
-+      # (EC)DH group used by the connection, if applicable.
-+      optional string keyExchangeGroup
-+      # Cipher name.
-+      string cipher
-+      # TLS MAC. Note that AEAD ciphers do not have separate MACs.
-+      optional string mac
-+      # Page certificate.
-+      array of string certificate
-+      # Certificate subject name.
-+      string subjectName
-+      # Name of the issuing CA.
-+      string issuer
-+      # Certificate valid from date.
-+      Network.TimeSinceEpoch validFrom
-+      # Certificate valid to (expiration) date
-+      Network.TimeSinceEpoch validTo
-+      # The highest priority network error code, if the certificate has an error.
-+      optional string certificateNetworkError
-+      # True if the certificate uses a weak signature algorithm.
-+      boolean certificateHasWeakSignature
-+      # True if the certificate has a SHA1 signature in the chain.
-+      boolean certificateHasSha1Signature
-+      # True if modern SSL
-+      boolean modernSSL
-+      # True if the connection is using an obsolete SSL protocol.
-+      boolean obsoleteSslProtocol
-+      # True if the connection is using an obsolete SSL key exchange.
-+      boolean obsoleteSslKeyExchange
-+      # True if the connection is using an obsolete SSL cipher.
-+      boolean obsoleteSslCipher
-+      # True if the connection is using an obsolete SSL signature.
-+      boolean obsoleteSslSignature
-+
-+  experimental type SafetyTipStatus extends string
-+    enum
-+      badReputation
-+      lookalike
-+
-+  experimental type SafetyTipInfo extends object
-+    properties
-+      # Describes whether the page triggers any safety tips or reputation warnings. Default is unknown.
-+      SafetyTipStatus safetyTipStatus
-+      # The URL the safety tip suggested ("Did you mean?"). Only filled in for lookalike matches.
-+      optional string safeUrl
-+
-+  # Security state information about the page.
-+  experimental type VisibleSecurityState extends object
-+    properties
-+      # The security level of the page.
-+      SecurityState securityState
-+      # Security state details about the page certificate.
-+      optional CertificateSecurityState certificateSecurityState
-+      # The type of Safety Tip triggered on the page. Note that this field will be set even if the Safety Tip UI was not actually shown.
-+      optional SafetyTipInfo safetyTipInfo
-+      # Array of security state issues ids.
-+      array of string securityStateIssueIds
-+
-+  # An explanation of an factor contributing to the security state.
-+  type SecurityStateExplanation extends object
-+    properties
-+      # Security state representing the severity of the factor being explained.
-+      SecurityState securityState
-+      # Title describing the type of factor.
-+      string title
-+      # Short phrase describing the type of factor.
-+      string summary
-+      # Full text explanation of the factor.
-+      string description
-+      # The type of mixed content described by the explanation.
-+      MixedContentType mixedContentType
-+      # Page certificate.
-+      array of string certificate
-+      # Recommendations to fix any issues.
-+      optional array of string recommendations
-+
-+  # Information about insecure content on the page.
-+  deprecated type InsecureContentStatus extends object
-+    properties
-+      # Always false.
-+      boolean ranMixedContent
-+      # Always false.
-+      boolean displayedMixedContent
-+      # Always false.
-+      boolean containedMixedForm
-+      # Always false.
-+      boolean ranContentWithCertErrors
-+      # Always false.
-+      boolean displayedContentWithCertErrors
-+      # Always set to unknown.
-+      SecurityState ranInsecureContentStyle
-+      # Always set to unknown.
-+      SecurityState displayedInsecureContentStyle
-+
-+  # The action to take when a certificate error occurs. continue will continue processing the
-+  # request and cancel will cancel the request.
-+  type CertificateErrorAction extends string
-+    enum
-+      continue
-+      cancel
-+
-+  # Disables tracking security state changes.
-+  command disable
-+
-+  # Enables tracking security state changes.
-+  command enable
-+
-+  # Enable/disable whether all certificate errors should be ignored.
-+  command setIgnoreCertificateErrors
-+    parameters
-+      # If true, all certificate errors will be ignored.
-+      boolean ignore
-+
-+  # Handles a certificate error that fired a certificateError event.
-+  deprecated command handleCertificateError
-+    parameters
-+      # The ID of the event.
-+      integer eventId
-+      # The action to take on the certificate error.
-+      CertificateErrorAction action
-+
-+  # Enable/disable overriding certificate errors. If enabled, all certificate error events need to
-+  # be handled by the DevTools client and should be answered with `handleCertificateError` commands.
-+  deprecated command setOverrideCertificateErrors
-+    parameters
-+      # If true, certificate errors will be overridden.
-+      boolean override
-+
-+  # There is a certificate error. If overriding certificate errors is enabled, then it should be
-+  # handled with the `handleCertificateError` command. Note: this event does not fire if the
-+  # certificate error has been allowed internally. Only one client per target should override
-+  # certificate errors at the same time.
-+  deprecated event certificateError
-+    parameters
-+      # The ID of the event.
-+      integer eventId
-+      # The type of the error.
-+      string errorType
-+      # The url that was requested.
-+      string requestURL
-+
-+  # The security state of the page changed.
-+  experimental event visibleSecurityStateChanged
-+    parameters
-+      # Security state information about the page.
-+      VisibleSecurityState visibleSecurityState
-+
-+  # The security state of the page changed. No longer being sent.
-+  deprecated event securityStateChanged
-+    parameters
-+      # Security state.
-+      SecurityState securityState
-+      # True if the page was loaded over cryptographic transport such as HTTPS.
-+      deprecated boolean schemeIsCryptographic
-+      # Previously a list of explanations for the security state. Now always
-+      # empty.
-+      deprecated array of SecurityStateExplanation explanations
-+      # Information about insecure content on the page.
-+      deprecated InsecureContentStatus insecureContentStatus
-+      # Overrides user-visible description of the state. Always omitted.
-+      deprecated optional string summary
-diff --git a/pdl/domains/ServiceWorker.pdl b/pdl/domains/ServiceWorker.pdl
-new file mode 100644
-index 00000000..8932ff9e
---- /dev/null
-+++ b/pdl/domains/ServiceWorker.pdl
-@@ -0,0 +1,121 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain ServiceWorker
-+  depends on Target
-+
-+  type RegistrationID extends string
-+
-+  # ServiceWorker registration.
-+  type ServiceWorkerRegistration extends object
-+    properties
-+      RegistrationID registrationId
-+      string scopeURL
-+      boolean isDeleted
-+
-+  type ServiceWorkerVersionRunningStatus extends string
-+    enum
-+      stopped
-+      starting
-+      running
-+      stopping
-+
-+  type ServiceWorkerVersionStatus extends string
-+    enum
-+      new
-+      installing
-+      installed
-+      activating
-+      activated
-+      redundant
-+
-+  # ServiceWorker version.
-+  type ServiceWorkerVersion extends object
-+    properties
-+      string versionId
-+      RegistrationID registrationId
-+      string scriptURL
-+      ServiceWorkerVersionRunningStatus runningStatus
-+      ServiceWorkerVersionStatus status
-+      # The Last-Modified header value of the main script.
-+      optional number scriptLastModified
-+      # The time at which the response headers of the main script were received from the server.
-+      # For cached script it is the last time the cache entry was validated.
-+      optional number scriptResponseTime
-+      optional array of Target.TargetID controlledClients
-+      optional Target.TargetID targetId
-+      optional string routerRules
-+
-+  # ServiceWorker error message.
-+  type ServiceWorkerErrorMessage extends object
-+    properties
-+      string errorMessage
-+      RegistrationID registrationId
-+      string versionId
-+      string sourceURL
-+      integer lineNumber
-+      integer columnNumber
-+
-+  command deliverPushMessage
-+    parameters
-+      string origin
-+      RegistrationID registrationId
-+      string data
-+
-+  command disable
-+
-+  command dispatchSyncEvent
-+    parameters
-+      string origin
-+      RegistrationID registrationId
-+      string tag
-+      boolean lastChance
-+
-+  command dispatchPeriodicSyncEvent
-+    parameters
-+      string origin
-+      RegistrationID registrationId
-+      string tag
-+
-+  command enable
-+
-+  command setForceUpdateOnPageLoad
-+    parameters
-+      boolean forceUpdateOnPageLoad
-+
-+  command skipWaiting
-+    parameters
-+      string scopeURL
-+
-+  command startWorker
-+    parameters
-+      string scopeURL
-+
-+  command stopAllWorkers
-+
-+  command stopWorker
-+    parameters
-+      string versionId
-+
-+  command unregister
-+    parameters
-+      string scopeURL
-+
-+  command updateRegistration
-+    parameters
-+      string scopeURL
-+
-+  event workerErrorReported
-+    parameters
-+      ServiceWorkerErrorMessage errorMessage
-+
-+  event workerRegistrationUpdated
-+    parameters
-+      array of ServiceWorkerRegistration registrations
-+
-+  event workerVersionUpdated
-+    parameters
-+      array of ServiceWorkerVersion versions
-diff --git a/pdl/domains/Storage.pdl b/pdl/domains/Storage.pdl
-new file mode 100644
-index 00000000..5c4e1302
---- /dev/null
-+++ b/pdl/domains/Storage.pdl
-@@ -0,0 +1,913 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+experimental domain Storage
-+  depends on Browser
-+  depends on Network
-+
-+  type SerializedStorageKey extends string
-+
-+  # Enum of possible storage types.
-+  type StorageType extends string
-+    enum
-+      cookies
-+      file_systems
-+      indexeddb
-+      local_storage
-+      shader_cache
-+      websql
-+      service_workers
-+      cache_storage
-+      interest_groups
-+      shared_storage
-+      storage_buckets
-+      all
-+      other
-+
-+  # Usage for a storage type.
-+  type UsageForType extends object
-+    properties
-+      # Name of storage type.
-+      StorageType storageType
-+      # Storage usage (bytes).
-+      number usage
-+
-+  # Pair of issuer origin and number of available (signed, but not used) Trust
-+  # Tokens from that issuer.
-+  experimental type TrustTokens extends object
-+    properties
-+      string issuerOrigin
-+      number count
-+
-+  # Protected audience interest group auction identifier.
-+  type InterestGroupAuctionId extends string
-+
-+  # Enum of interest group access types.
-+  type InterestGroupAccessType extends string
-+    enum
-+      join
-+      leave
-+      update
-+      loaded
-+      bid
-+      win
-+      additionalBid
-+      additionalBidWin
-+      topLevelBid
-+      topLevelAdditionalBid
-+      clear
-+
-+  # Enum of auction events.
-+  type InterestGroupAuctionEventType extends string
-+    enum
-+      started
-+      configResolved
-+
-+  # Enum of network fetches auctions can do.
-+  type InterestGroupAuctionFetchType extends string
-+    enum
-+      bidderJs
-+      bidderWasm
-+      sellerJs
-+      bidderTrustedSignals
-+      sellerTrustedSignals
-+
-+  # Enum of shared storage access scopes.
-+  type SharedStorageAccessScope extends string
-+    enum
-+      window
-+      sharedStorageWorklet
-+      protectedAudienceWorklet
-+      header
-+
-+  # Enum of shared storage access methods.
-+  type SharedStorageAccessMethod extends string
-+    enum
-+      addModule
-+      createWorklet
-+      selectURL
-+      run
-+      batchUpdate
-+      set
-+      append
-+      delete
-+      clear
-+      get
-+      keys
-+      values
-+      entries
-+      length
-+      remainingBudget
-+
-+  # Struct for a single key-value pair in an origin's shared storage.
-+  type SharedStorageEntry extends object
-+    properties
-+      string key
-+      string value
-+
-+  # Details for an origin's shared storage.
-+  type SharedStorageMetadata extends object
-+    properties
-+      # Time when the origin's shared storage was last created.
-+      Network.TimeSinceEpoch creationTime
-+      # Number of key-value pairs stored in origin's shared storage.
-+      integer length
-+      # Current amount of bits of entropy remaining in the navigation budget.
-+      number remainingBudget
-+      # Total number of bytes stored as key-value pairs in origin's shared
-+      # storage.
-+      integer bytesUsed
-+
-+  # Represents a dictionary object passed in as privateAggregationConfig to
-+  # run or selectURL.
-+  type SharedStoragePrivateAggregationConfig extends object
-+    properties
-+      # The chosen aggregation service deployment.
-+      optional string aggregationCoordinatorOrigin
-+      # The context ID provided.
-+      optional string contextId
-+      # Configures the maximum size allowed for filtering IDs.
-+      integer filteringIdMaxBytes
-+      # The limit on the number of contributions in the final report.
-+      optional integer maxContributions
-+
-+  # Pair of reporting metadata details for a candidate URL for `selectURL()`.
-+  type SharedStorageReportingMetadata extends object
-+    properties
-+      string eventType
-+      string reportingUrl
-+
-+  # Bundles a candidate URL with its reporting metadata.
-+  type SharedStorageUrlWithMetadata extends object
-+    properties
-+      # Spec of candidate URL.
-+      string url
-+      # Any associated reporting metadata.
-+      array of SharedStorageReportingMetadata reportingMetadata
-+
-+  # Bundles the parameters for shared storage access events whose
-+  # presence/absence can vary according to SharedStorageAccessType.
-+  type SharedStorageAccessParams extends object
-+    properties
-+      # Spec of the module script URL.
-+      # Present only for SharedStorageAccessMethods: addModule and
-+      # createWorklet.
-+      optional string scriptSourceUrl
-+      # String denoting "context-origin", "script-origin", or a custom
-+      # origin to be used as the worklet's data origin.
-+      # Present only for SharedStorageAccessMethod: createWorklet.
-+      optional string dataOrigin
-+      # Name of the registered operation to be run.
-+      # Present only for SharedStorageAccessMethods: run and selectURL.
-+      optional string operationName
-+      # ID of the operation call.
-+      # Present only for SharedStorageAccessMethods: run and selectURL.
-+      optional string operationId
-+      # Whether or not to keep the worket alive for future run or selectURL
-+      # calls.
-+      # Present only for SharedStorageAccessMethods: run and selectURL.
-+      optional boolean keepAlive
-+      # Configures the private aggregation options.
-+      # Present only for SharedStorageAccessMethods: run and selectURL.
-+      optional SharedStoragePrivateAggregationConfig privateAggregationConfig
-+      # The operation's serialized data in bytes (converted to a string).
-+      # Present only for SharedStorageAccessMethods: run and selectURL.
-+      # TODO(crbug.com/401011862): Consider updating this parameter to binary.
-+      optional string serializedData
-+      # Array of candidate URLs' specs, along with any associated metadata.
-+      # Present only for SharedStorageAccessMethod: selectURL.
-+      optional array of SharedStorageUrlWithMetadata urlsWithMetadata
-+      # Spec of the URN:UUID generated for a selectURL call.
-+      # Present only for SharedStorageAccessMethod: selectURL.
-+      optional string urnUuid
-+      # Key for a specific entry in an origin's shared storage.
-+      # Present only for SharedStorageAccessMethods: set, append, delete, and
-+      # get.
-+      optional string key
-+      # Value for a specific entry in an origin's shared storage.
-+      # Present only for SharedStorageAccessMethods: set and append.
-+      optional string value
-+      # Whether or not to set an entry for a key if that key is already present.
-+      # Present only for SharedStorageAccessMethod: set.
-+      optional boolean ignoreIfPresent
-+      # A number denoting the (0-based) order of the worklet's
-+      # creation relative to all other shared storage worklets created by
-+      # documents using the current storage partition.
-+      # Present only for SharedStorageAccessMethods: addModule, createWorklet.
-+      optional integer workletOrdinal
-+      # Hex representation of the DevTools token used as the TargetID for the
-+      # associated shared storage worklet.
-+      # Present only for SharedStorageAccessMethods: addModule, createWorklet,
-+      # run, selectURL, and any other SharedStorageAccessMethod when the
-+      # SharedStorageAccessScope is sharedStorageWorklet.
-+      optional Target.TargetID workletTargetId
-+      # Name of the lock to be acquired, if present.
-+      # Optionally present only for SharedStorageAccessMethods: batchUpdate,
-+      # set, append, delete, and clear.
-+      optional string withLock
-+      # If the method has been called as part of a batchUpdate, then this
-+      # number identifies the batch to which it belongs.
-+      # Optionally present only for SharedStorageAccessMethods:
-+      # batchUpdate (required), set, append, delete, and clear.
-+      optional string batchUpdateId
-+      # Number of modifier methods sent in batch.
-+      # Present only for SharedStorageAccessMethod: batchUpdate.
-+      optional integer batchSize
-+
-+  type StorageBucketsDurability extends string
-+    enum
-+      relaxed
-+      strict
-+
-+  type StorageBucket extends object
-+    properties
-+      SerializedStorageKey storageKey
-+      # If not specified, it is the default bucket of the storageKey.
-+      optional string name
-+
-+  type StorageBucketInfo extends object
-+    properties
-+      StorageBucket bucket
-+      string id
-+      Network.TimeSinceEpoch expiration
-+      # Storage quota (bytes).
-+      number quota
-+      boolean persistent
-+      StorageBucketsDurability durability
-+
-+  # Returns a storage key given a frame id.
-+  command getStorageKeyForFrame
-+    parameters
-+      Page.FrameId frameId
-+    returns
-+      SerializedStorageKey storageKey
-+
-+  # Clears storage for origin.
-+  command clearDataForOrigin
-+    parameters
-+      # Security origin.
-+      string origin
-+      # Comma separated list of StorageType to clear.
-+      string storageTypes
-+
-+  # Clears storage for storage key.
-+  command clearDataForStorageKey
-+    parameters
-+      # Storage key.
-+      string storageKey
-+      # Comma separated list of StorageType to clear.
-+      string storageTypes
-+
-+  # Returns all browser cookies.
-+  command getCookies
-+    parameters
-+      # Browser context to use when called on the browser endpoint.
-+      optional Browser.BrowserContextID browserContextId
-+    returns
-+      # Array of cookie objects.
-+      array of Network.Cookie cookies
-+
-+  # Sets given cookies.
-+  command setCookies
-+    parameters
-+      # Cookies to be set.
-+      array of Network.CookieParam cookies
-+      # Browser context to use when called on the browser endpoint.
-+      optional Browser.BrowserContextID browserContextId
-+
-+  # Clears cookies.
-+  command clearCookies
-+    parameters
-+      # Browser context to use when called on the browser endpoint.
-+      optional Browser.BrowserContextID browserContextId
-+
-+  # Returns usage and quota in bytes.
-+  command getUsageAndQuota
-+    parameters
-+      # Security origin.
-+      string origin
-+    returns
-+      # Storage usage (bytes).
-+      number usage
-+      # Storage quota (bytes).
-+      number quota
-+      # Whether or not the origin has an active storage quota override
-+      boolean overrideActive
-+      # Storage usage per type (bytes).
-+      array of UsageForType usageBreakdown
-+
-+  # Override quota for the specified origin
-+  experimental command overrideQuotaForOrigin
-+    parameters
-+      # Security origin.
-+      string origin
-+      # The quota size (in bytes) to override the original quota with.
-+      # If this is called multiple times, the overridden quota will be equal to
-+      # the quotaSize provided in the final call. If this is called without
-+      # specifying a quotaSize, the quota will be reset to the default value for
-+      # the specified origin. If this is called multiple times with different
-+      # origins, the override will be maintained for each origin until it is
-+      # disabled (called without a quotaSize).
-+      optional number quotaSize
-+
-+  # Registers origin to be notified when an update occurs to its cache storage list.
-+  command trackCacheStorageForOrigin
-+    parameters
-+      # Security origin.
-+      string origin
-+
-+  # Registers storage key to be notified when an update occurs to its cache storage list.
-+  command trackCacheStorageForStorageKey
-+    parameters
-+      # Storage key.
-+      string storageKey
-+
-+  # Registers origin to be notified when an update occurs to its IndexedDB.
-+  command trackIndexedDBForOrigin
-+    parameters
-+      # Security origin.
-+      string origin
-+
-+  # Registers storage key to be notified when an update occurs to its IndexedDB.
-+  command trackIndexedDBForStorageKey
-+    parameters
-+      # Storage key.
-+      string storageKey
-+
-+  # Unregisters origin from receiving notifications for cache storage.
-+  command untrackCacheStorageForOrigin
-+    parameters
-+      # Security origin.
-+      string origin
-+
-+  # Unregisters storage key from receiving notifications for cache storage.
-+  command untrackCacheStorageForStorageKey
-+    parameters
-+      # Storage key.
-+      string storageKey
-+
-+  # Unregisters origin from receiving notifications for IndexedDB.
-+  command untrackIndexedDBForOrigin
-+    parameters
-+      # Security origin.
-+      string origin
-+
-+  # Unregisters storage key from receiving notifications for IndexedDB.
-+  command untrackIndexedDBForStorageKey
-+    parameters
-+      # Storage key.
-+      string storageKey
-+
-+  # Returns the number of stored Trust Tokens per issuer for the
-+  # current browsing context.
-+  experimental command getTrustTokens
-+    returns
-+      array of TrustTokens tokens
-+
-+  # Removes all Trust Tokens issued by the provided issuerOrigin.
-+  # Leaves other stored data, including the issuer's Redemption Records, intact.
-+  experimental command clearTrustTokens
-+    parameters
-+      string issuerOrigin
-+    returns
-+      # True if any tokens were deleted, false otherwise.
-+      boolean didDeleteTokens
-+
-+  # Gets details for a named interest group.
-+  experimental command getInterestGroupDetails
-+    parameters
-+      string ownerOrigin
-+      string name
-+    returns
-+      # This largely corresponds to:
-+      # https://wicg.github.io/turtledove/#dictdef-generatebidinterestgroup
-+      # but has absolute expirationTime instead of relative lifetimeMs and
-+      # also adds joiningOrigin.
-+      object details
-+
-+  # Enables/Disables issuing of interestGroupAccessed events.
-+  experimental command setInterestGroupTracking
-+    parameters
-+      boolean enable
-+
-+  # Enables/Disables issuing of interestGroupAuctionEventOccurred and
-+  # interestGroupAuctionNetworkRequestCreated.
-+  experimental command setInterestGroupAuctionTracking
-+    parameters
-+      boolean enable
-+
-+  # Gets metadata for an origin's shared storage.
-+  experimental command getSharedStorageMetadata
-+    parameters
-+      string ownerOrigin
-+    returns
-+      SharedStorageMetadata metadata
-+
-+  # Gets the entries in an given origin's shared storage.
-+  experimental command getSharedStorageEntries
-+    parameters
-+      string ownerOrigin
-+    returns
-+      array of SharedStorageEntry entries
-+
-+  # Sets entry with `key` and `value` for a given origin's shared storage.
-+  experimental command setSharedStorageEntry
-+    parameters
-+      string ownerOrigin
-+      string key
-+      string value
-+      # If `ignoreIfPresent` is included and true, then only sets the entry if
-+      # `key` doesn't already exist.
-+      optional boolean ignoreIfPresent
-+
-+  # Deletes entry for `key` (if it exists) for a given origin's shared storage.
-+  experimental command deleteSharedStorageEntry
-+    parameters
-+      string ownerOrigin
-+      string key
-+
-+  # Clears all entries for a given origin's shared storage.
-+  experimental command clearSharedStorageEntries
-+    parameters
-+      string ownerOrigin
-+
-+  # Resets the budget for `ownerOrigin` by clearing all budget withdrawals.
-+  experimental command resetSharedStorageBudget
-+    parameters
-+      string ownerOrigin
-+
-+  # Enables/disables issuing of sharedStorageAccessed events.
-+  experimental command setSharedStorageTracking
-+    parameters
-+      boolean enable
-+
-+  # Set tracking for a storage key's buckets.
-+  experimental command setStorageBucketTracking
-+    parameters
-+      string storageKey
-+      boolean enable
-+
-+  # Deletes the Storage Bucket with the given storage key and bucket name.
-+  experimental command deleteStorageBucket
-+    parameters
-+      StorageBucket bucket
-+
-+  # Deletes state for sites identified as potential bounce trackers, immediately.
-+  experimental command runBounceTrackingMitigations
-+    returns
-+      array of string deletedSites
-+
-+  # A cache's contents have been modified.
-+  event cacheStorageContentUpdated
-+    parameters
-+      # Origin to update.
-+      string origin
-+      # Storage key to update.
-+      string storageKey
-+      # Storage bucket to update.
-+      string bucketId
-+      # Name of cache in origin.
-+      string cacheName
-+
-+  # A cache has been added/deleted.
-+  event cacheStorageListUpdated
-+    parameters
-+      # Origin to update.
-+      string origin
-+      # Storage key to update.
-+      string storageKey
-+      # Storage bucket to update.
-+      string bucketId
-+
-+  # The origin's IndexedDB object store has been modified.
-+  event indexedDBContentUpdated
-+    parameters
-+      # Origin to update.
-+      string origin
-+      # Storage key to update.
-+      string storageKey
-+      # Storage bucket to update.
-+      string bucketId
-+      # Database to update.
-+      string databaseName
-+      # ObjectStore to update.
-+      string objectStoreName
-+
-+  # The origin's IndexedDB database list has been modified.
-+  event indexedDBListUpdated
-+    parameters
-+      # Origin to update.
-+      string origin
-+      # Storage key to update.
-+      string storageKey
-+      # Storage bucket to update.
-+      string bucketId
-+
-+  # One of the interest groups was accessed. Note that these events are global
-+  # to all targets sharing an interest group store.
-+  event interestGroupAccessed
-+    parameters
-+      Network.TimeSinceEpoch accessTime
-+      InterestGroupAccessType type
-+      string ownerOrigin
-+      string name
-+      # For topLevelBid/topLevelAdditionalBid, and when appropriate,
-+      # win and additionalBidWin
-+      optional string componentSellerOrigin
-+      # For bid or somethingBid event, if done locally and not on a server.
-+      optional number bid
-+      optional string bidCurrency
-+      # For non-global events --- links to interestGroupAuctionEvent
-+      optional InterestGroupAuctionId uniqueAuctionId
-+
-+  # An auction involving interest groups is taking place. These events are
-+  # target-specific.
-+  event interestGroupAuctionEventOccurred
-+    parameters
-+      Network.TimeSinceEpoch eventTime
-+      InterestGroupAuctionEventType type
-+      InterestGroupAuctionId uniqueAuctionId
-+      # Set for child auctions.
-+      optional InterestGroupAuctionId parentAuctionId
-+      # Set for started and configResolved
-+      optional object auctionConfig
-+
-+  # Specifies which auctions a particular network fetch may be related to, and
-+  # in what role. Note that it is not ordered with respect to
-+  # Network.requestWillBeSent (but will happen before loadingFinished
-+  # loadingFailed).
-+  event interestGroupAuctionNetworkRequestCreated
-+    parameters
-+      InterestGroupAuctionFetchType type
-+      Network.RequestId requestId
-+      # This is the set of the auctions using the worklet that issued this
-+      # request.  In the case of trusted signals, it's possible that only some of
-+      # them actually care about the keys being queried.
-+      array of InterestGroupAuctionId auctions
-+
-+  # Shared storage was accessed by the associated page.
-+  # The following parameters are included in all events.
-+  event sharedStorageAccessed
-+    parameters
-+      # Time of the access.
-+      Network.TimeSinceEpoch accessTime
-+      # Enum value indicating the access scope.
-+      SharedStorageAccessScope scope
-+      # Enum value indicating the Shared Storage API method invoked.
-+      SharedStorageAccessMethod method
-+      # DevTools Frame Token for the primary frame tree's root.
-+      Page.FrameId mainFrameId
-+      # Serialization of the origin owning the Shared Storage data.
-+      string ownerOrigin
-+      # Serialization of the site owning the Shared Storage data.
-+      string ownerSite
-+      # The sub-parameters wrapped by `params` are all optional and their
-+      # presence/absence depends on `type`.
-+      SharedStorageAccessParams params
-+
-+  # A shared storage run or selectURL operation finished its execution.
-+  # The following parameters are included in all events.
-+  event sharedStorageWorkletOperationExecutionFinished
-+    parameters
-+      # Time that the operation finished.
-+      Network.TimeSinceEpoch finishedTime
-+      # Time, in microseconds, from start of shared storage JS API call until
-+      # end of operation execution in the worklet.
-+      integer executionTime
-+      # Enum value indicating the Shared Storage API method invoked.
-+      SharedStorageAccessMethod method
-+      # ID of the operation call.
-+      string operationId
-+      # Hex representation of the DevTools token used as the TargetID for the
-+      # associated shared storage worklet.
-+      Target.TargetID workletTargetId
-+      # DevTools Frame Token for the primary frame tree's root.
-+      Page.FrameId mainFrameId
-+      # Serialization of the origin owning the Shared Storage data.
-+      string ownerOrigin
-+
-+  event storageBucketCreatedOrUpdated
-+    parameters
-+      StorageBucketInfo bucketInfo
-+
-+  event storageBucketDeleted
-+    parameters
-+      string bucketId
-+
-+  # https://wicg.github.io/attribution-reporting-api/
-+  experimental command setAttributionReportingLocalTestingMode
-+    parameters
-+      # If enabled, noise is suppressed and reports are sent immediately.
-+      boolean enabled
-+
-+  # Enables/disables issuing of Attribution Reporting events.
-+  experimental command setAttributionReportingTracking
-+    parameters
-+      boolean enable
-+
-+  # Sends all pending Attribution Reports immediately, regardless of their
-+  # scheduled report time.
-+  experimental command sendPendingAttributionReports
-+    returns
-+      # The number of reports that were sent.
-+      integer numSent
-+
-+  experimental type AttributionReportingSourceType extends string
-+    enum
-+      navigation
-+      event
-+
-+  experimental type UnsignedInt64AsBase10 extends string
-+  experimental type UnsignedInt128AsBase16 extends string
-+  experimental type SignedInt64AsBase10 extends string
-+
-+  experimental type AttributionReportingFilterDataEntry extends object
-+    properties
-+      string key
-+      array of string values
-+
-+  experimental type AttributionReportingFilterConfig extends object
-+    properties
-+      array of AttributionReportingFilterDataEntry filterValues
-+      # duration in seconds
-+      optional integer lookbackWindow
-+
-+  experimental type AttributionReportingFilterPair extends object
-+    properties
-+      array of AttributionReportingFilterConfig filters
-+      array of AttributionReportingFilterConfig notFilters
-+
-+  experimental type AttributionReportingAggregationKeysEntry extends object
-+    properties
-+      string key
-+      UnsignedInt128AsBase16 value
-+
-+  experimental type AttributionReportingEventReportWindows extends object
-+    properties
-+      # duration in seconds
-+      integer start
-+      # duration in seconds
-+      array of integer ends
-+
-+  experimental type AttributionReportingTriggerDataMatching extends string
-+    enum
-+      exact
-+      modulus
-+
-+  experimental type AttributionReportingAggregatableDebugReportingData extends object
-+    properties
-+      UnsignedInt128AsBase16 keyPiece
-+      # number instead of integer because not all uint32 can be represented by
-+      # int
-+      number value
-+      array of string types
-+
-+  experimental type AttributionReportingAggregatableDebugReportingConfig extends object
-+    properties
-+      # number instead of integer because not all uint32 can be represented by
-+      # int, only present for source registrations
-+      optional number budget
-+      UnsignedInt128AsBase16 keyPiece
-+      array of AttributionReportingAggregatableDebugReportingData debugData
-+      optional string aggregationCoordinatorOrigin
-+
-+  experimental type AttributionScopesData extends object
-+    properties
-+      array of string values
-+      # number instead of integer because not all uint32 can be represented by
-+      # int
-+      number limit
-+      number maxEventStates
-+
-+  experimental type AttributionReportingNamedBudgetDef extends object
-+    properties
-+      string name
-+      integer budget
-+
-+  experimental type AttributionReportingSourceRegistration extends object
-+    properties
-+      Network.TimeSinceEpoch time
-+      # duration in seconds
-+      integer expiry
-+      # number instead of integer because not all uint32 can be represented by
-+      # int
-+      array of number triggerData
-+      AttributionReportingEventReportWindows eventReportWindows
-+      # duration in seconds
-+      integer aggregatableReportWindow
-+      AttributionReportingSourceType type
-+      string sourceOrigin
-+      string reportingOrigin
-+      array of string destinationSites
-+      UnsignedInt64AsBase10 eventId
-+      SignedInt64AsBase10 priority
-+      array of AttributionReportingFilterDataEntry filterData
-+      array of AttributionReportingAggregationKeysEntry aggregationKeys
-+      optional UnsignedInt64AsBase10 debugKey
-+      AttributionReportingTriggerDataMatching triggerDataMatching
-+      SignedInt64AsBase10 destinationLimitPriority
-+      AttributionReportingAggregatableDebugReportingConfig aggregatableDebugReportingConfig
-+      optional AttributionScopesData scopesData
-+      integer maxEventLevelReports
-+      array of AttributionReportingNamedBudgetDef namedBudgets
-+      boolean debugReporting
-+      number eventLevelEpsilon
-+
-+  experimental type AttributionReportingSourceRegistrationResult extends string
-+    enum
-+      success
-+      internalError
-+      insufficientSourceCapacity
-+      insufficientUniqueDestinationCapacity
-+      excessiveReportingOrigins
-+      prohibitedByBrowserPolicy
-+      successNoised
-+      destinationReportingLimitReached
-+      destinationGlobalLimitReached
-+      destinationBothLimitsReached
-+      reportingOriginsPerSiteLimitReached
-+      exceedsMaxChannelCapacity
-+      exceedsMaxScopesChannelCapacity
-+      exceedsMaxTriggerStateCardinality
-+      exceedsMaxEventStatesLimit
-+      destinationPerDayReportingLimitReached
-+
-+  experimental event attributionReportingSourceRegistered
-+    parameters
-+      AttributionReportingSourceRegistration registration
-+      AttributionReportingSourceRegistrationResult result
-+
-+  experimental type AttributionReportingSourceRegistrationTimeConfig extends string
-+    enum
-+      include
-+      exclude
-+
-+  experimental type AttributionReportingAggregatableValueDictEntry extends object
-+    properties
-+      string key
-+      # number instead of integer because not all uint32 can be represented by
-+      # int
-+      number value
-+      UnsignedInt64AsBase10 filteringId
-+
-+
-+  experimental type AttributionReportingAggregatableValueEntry extends object
-+    properties
-+      array of AttributionReportingAggregatableValueDictEntry values
-+      AttributionReportingFilterPair filters
-+
-+  experimental type AttributionReportingEventTriggerData extends object
-+    properties
-+      UnsignedInt64AsBase10 data
-+      SignedInt64AsBase10 priority
-+      optional UnsignedInt64AsBase10 dedupKey
-+      AttributionReportingFilterPair filters
-+
-+  experimental type AttributionReportingAggregatableTriggerData extends object
-+    properties
-+      UnsignedInt128AsBase16 keyPiece
-+      array of string sourceKeys
-+      AttributionReportingFilterPair filters
-+
-+  experimental type AttributionReportingAggregatableDedupKey extends object
-+    properties
-+      optional UnsignedInt64AsBase10 dedupKey
-+      AttributionReportingFilterPair filters
-+
-+  experimental type AttributionReportingNamedBudgetCandidate extends object
-+    properties
-+      optional string name
-+      AttributionReportingFilterPair filters
-+
-+  experimental type AttributionReportingTriggerRegistration extends object
-+    properties
-+      AttributionReportingFilterPair filters
-+      optional UnsignedInt64AsBase10 debugKey
-+      array of AttributionReportingAggregatableDedupKey aggregatableDedupKeys
-+      array of AttributionReportingEventTriggerData eventTriggerData
-+      array of AttributionReportingAggregatableTriggerData aggregatableTriggerData
-+      array of AttributionReportingAggregatableValueEntry aggregatableValues
-+      integer aggregatableFilteringIdMaxBytes
-+      boolean debugReporting
-+      optional string aggregationCoordinatorOrigin
-+      AttributionReportingSourceRegistrationTimeConfig sourceRegistrationTimeConfig
-+      optional string triggerContextId
-+      AttributionReportingAggregatableDebugReportingConfig aggregatableDebugReportingConfig
-+      array of string scopes
-+      array of AttributionReportingNamedBudgetCandidate namedBudgets
-+
-+  experimental type AttributionReportingEventLevelResult extends string
-+    enum
-+      success
-+      successDroppedLowerPriority
-+      internalError
-+      noCapacityForAttributionDestination
-+      noMatchingSources
-+      deduplicated
-+      excessiveAttributions
-+      priorityTooLow
-+      neverAttributedSource
-+      excessiveReportingOrigins
-+      noMatchingSourceFilterData
-+      prohibitedByBrowserPolicy
-+      noMatchingConfigurations
-+      excessiveReports
-+      falselyAttributedSource
-+      reportWindowPassed
-+      notRegistered
-+      reportWindowNotStarted
-+      noMatchingTriggerData
-+
-+  experimental type AttributionReportingAggregatableResult extends string
-+    enum
-+      success
-+      internalError
-+      noCapacityForAttributionDestination
-+      noMatchingSources
-+      excessiveAttributions
-+      excessiveReportingOrigins
-+      noHistograms
-+      insufficientBudget
-+      insufficientNamedBudget
-+      noMatchingSourceFilterData
-+      notRegistered
-+      prohibitedByBrowserPolicy
-+      deduplicated
-+      reportWindowPassed
-+      excessiveReports
-+
-+  experimental event attributionReportingTriggerRegistered
-+    parameters
-+      AttributionReportingTriggerRegistration registration
-+      AttributionReportingEventLevelResult eventLevel
-+      AttributionReportingAggregatableResult aggregatable
-+
-+  experimental type AttributionReportingReportResult extends string
-+    enum
-+      # A network request was attempted for the report.
-+      sent
-+      # No request was attempted because of browser policy.
-+      prohibited
-+      # No request was attempted because of an error in report assembly,
-+      # e.g. the aggregation service was unavailable.
-+      failedToAssemble
-+      # No request was attempted because the report's expiry passed.
-+      expired
-+
-+  experimental event attributionReportingReportSent
-+    parameters
-+      string url
-+      object body
-+      AttributionReportingReportResult result
-+      # If result is `sent`, populated with net/HTTP status.
-+      optional integer netError
-+      optional string netErrorName
-+      optional integer httpStatusCode
-+
-+  experimental event attributionReportingVerboseDebugReportSent
-+    parameters
-+      string url
-+      optional array of object body
-+      optional integer netError
-+      optional string netErrorName
-+      optional integer httpStatusCode
-+
-+  # A single Related Website Set object.
-+  experimental type RelatedWebsiteSet extends object
-+    properties
-+      # The primary site of this set, along with the ccTLDs if there is any.
-+      array of string primarySites
-+      # The associated sites of this set, along with the ccTLDs if there is any.
-+      array of string associatedSites
-+      # The service sites of this set, along with the ccTLDs if there is any.
-+      array of string serviceSites
-+
-+  # Returns the effective Related Website Sets in use by this profile for the browser
-+  # session. The effective Related Website Sets will not change during a browser session.
-+  experimental command getRelatedWebsiteSets
-+    returns
-+      array of RelatedWebsiteSet sets
-+
-+  # Returns the list of URLs from a page and its embedded resources that match
-+  # existing grace period URL pattern rules.
-+  # https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period
-+  experimental command getAffectedUrlsForThirdPartyCookieMetadata
-+    parameters
-+      # The URL of the page currently being visited.
-+      string firstPartyUrl
-+      # The list of embedded resource URLs from the page.
-+      array of string thirdPartyUrls
-+
-+    returns
-+      # Array of matching URLs. If there is a primary pattern match for the first-
-+      # party URL, only the first-party URL is returned in the array.
-+      array of string matchedUrls
-+
-+  command setProtectedAudienceKAnonymity
-+    parameters
-+      string owner
-+      string name
-+      array of binary hashes
-diff --git a/pdl/domains/SystemInfo.pdl b/pdl/domains/SystemInfo.pdl
-new file mode 100644
-index 00000000..2ff9c252
---- /dev/null
-+++ b/pdl/domains/SystemInfo.pdl
-@@ -0,0 +1,145 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# The SystemInfo domain defines methods and events for querying low-level system information.
-+experimental domain SystemInfo
-+
-+  # Describes a single graphics processor (GPU).
-+  type GPUDevice extends object
-+    properties
-+      # PCI ID of the GPU vendor, if available; 0 otherwise.
-+      number vendorId
-+      # PCI ID of the GPU device, if available; 0 otherwise.
-+      number deviceId
-+      # Sub sys ID of the GPU, only available on Windows.
-+      optional number subSysId
-+      # Revision of the GPU, only available on Windows.
-+      optional number revision
-+      # String description of the GPU vendor, if the PCI ID is not available.
-+      string vendorString
-+      # String description of the GPU device, if the PCI ID is not available.
-+      string deviceString
-+      # String description of the GPU driver vendor.
-+      string driverVendor
-+      # String description of the GPU driver version.
-+      string driverVersion
-+
-+  # Describes the width and height dimensions of an entity.
-+  type Size extends object
-+    properties
-+      # Width in pixels.
-+      integer width
-+      # Height in pixels.
-+      integer height
-+
-+  # Describes a supported video decoding profile with its associated minimum and
-+  # maximum resolutions.
-+  type VideoDecodeAcceleratorCapability extends object
-+    properties
-+      # Video codec profile that is supported, e.g. VP9 Profile 2.
-+      string profile
-+      # Maximum video dimensions in pixels supported for this |profile|.
-+      Size maxResolution
-+      # Minimum video dimensions in pixels supported for this |profile|.
-+      Size minResolution
-+
-+  # Describes a supported video encoding profile with its associated maximum
-+  # resolution and maximum framerate.
-+  type VideoEncodeAcceleratorCapability extends object
-+    properties
-+      # Video codec profile that is supported, e.g H264 Main.
-+      string profile
-+      # Maximum video dimensions in pixels supported for this |profile|.
-+      Size maxResolution
-+      # Maximum encoding framerate in frames per second supported for this
-+      # |profile|, as fraction's numerator and denominator, e.g. 24/1 fps,
-+      # 24000/1001 fps, etc.
-+      integer maxFramerateNumerator
-+      integer maxFramerateDenominator
-+
-+  # YUV subsampling type of the pixels of a given image.
-+  type SubsamplingFormat extends string
-+    enum
-+      yuv420
-+      yuv422
-+      yuv444
-+
-+  # Image format of a given image.
-+  type ImageType extends string
-+    enum
-+      jpeg
-+      webp
-+      unknown
-+
-+  # Describes a supported image decoding profile with its associated minimum and
-+  # maximum resolutions and subsampling.
-+  type ImageDecodeAcceleratorCapability extends object
-+    properties
-+      # Image coded, e.g. Jpeg.
-+      ImageType imageType
-+      # Maximum supported dimensions of the image in pixels.
-+      Size maxDimensions
-+      # Minimum supported dimensions of the image in pixels.
-+      Size minDimensions
-+      # Optional array of supported subsampling formats, e.g. 4:2:0, if known.
-+      array of SubsamplingFormat subsamplings
-+
-+  # Provides information about the GPU(s) on the system.
-+  type GPUInfo extends object
-+    properties
-+      # The graphics devices on the system. Element 0 is the primary GPU.
-+      array of GPUDevice devices
-+      # An optional dictionary of additional GPU related attributes.
-+      optional object auxAttributes
-+      # An optional dictionary of graphics features and their status.
-+      optional object featureStatus
-+      # An optional array of GPU driver bug workarounds.
-+      array of string driverBugWorkarounds
-+      # Supported accelerated video decoding capabilities.
-+      array of VideoDecodeAcceleratorCapability videoDecoding
-+      # Supported accelerated video encoding capabilities.
-+      array of VideoEncodeAcceleratorCapability videoEncoding
-+      # Supported accelerated image decoding capabilities.
-+      array of ImageDecodeAcceleratorCapability imageDecoding
-+
-+  # Represents process info.
-+  type ProcessInfo extends object
-+    properties
-+      # Specifies process type.
-+      string type
-+      # Specifies process id.
-+      integer id
-+      # Specifies cumulative CPU usage in seconds across all threads of the
-+      # process since the process start.
-+      number cpuTime
-+
-+  # Returns information about the system.
-+  command getInfo
-+    returns
-+      # Information about the GPUs on the system.
-+      GPUInfo gpu
-+      # A platform-dependent description of the model of the machine. On Mac OS, this is, for
-+      # example, 'MacBookPro'. Will be the empty string if not supported.
-+      string modelName
-+      # A platform-dependent description of the version of the machine. On Mac OS, this is, for
-+      # example, '10.1'. Will be the empty string if not supported.
-+      string modelVersion
-+      # The command line string used to launch the browser. Will be the empty string if not
-+      # supported.
-+      string commandLine
-+
-+  # Returns information about the feature state.
-+  command getFeatureState
-+    parameters
-+      string featureState
-+    returns
-+      boolean featureEnabled
-+
-+  # Returns information about all running processes.
-+  command getProcessInfo
-+    returns
-+      # An array of process info blocks.
-+      array of ProcessInfo processInfo
-diff --git a/pdl/domains/Target.pdl b/pdl/domains/Target.pdl
-new file mode 100644
-index 00000000..92d271b2
---- /dev/null
-+++ b/pdl/domains/Target.pdl
-@@ -0,0 +1,325 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# Supports additional targets discovery and allows to attach to them.
-+domain Target
-+
-+  type TargetID extends string
-+
-+  # Unique identifier of attached debugging session.
-+  type SessionID extends string
-+
-+  type TargetInfo extends object
-+    properties
-+      TargetID targetId
-+      # List of types: https://source.chromium.org/chromium/chromium/src/+/main:content/browser/devtools/devtools_agent_host_impl.cc?ss=chromium&q=f:devtools%20-f:out%20%22::kTypeTab%5B%5D%22
-+      string type
-+      string title
-+      string url
-+      # Whether the target has an attached client.
-+      boolean attached
-+      # Opener target Id
-+      optional TargetID openerId
-+      # Whether the target has access to the originating window.
-+      experimental boolean canAccessOpener
-+      # Frame id of originating window (is only set if target has an opener).
-+      experimental optional Page.FrameId openerFrameId
-+      experimental optional Browser.BrowserContextID browserContextId
-+      # Provides additional details for specific target types. For example, for
-+      # the type of "page", this may be set to "prerender".
-+      experimental optional string subtype
-+
-+  # A filter used by target query/discovery/auto-attach operations.
-+  experimental type FilterEntry extends object
-+    properties
-+      # If set, causes exclusion of matching targets from the list.
-+      optional boolean exclude
-+      # If not present, matches any type.
-+      optional string type
-+
-+  # The entries in TargetFilter are matched sequentially against targets and
-+  # the first entry that matches determines if the target is included or not,
-+  # depending on the value of `exclude` field in the entry.
-+  # If filter is not specified, the one assumed is
-+  # [{type: "browser", exclude: true}, {type: "tab", exclude: true}, {}]
-+  # (i.e. include everything but `browser` and `tab`).
-+  experimental type TargetFilter extends array of FilterEntry
-+
-+  experimental type RemoteLocation extends object
-+    properties
-+      string host
-+      integer port
-+
-+  # The state of the target window.
-+  experimental type WindowState extends string
-+    enum
-+      normal
-+      minimized
-+      maximized
-+      fullscreen
-+
-+  # Activates (focuses) the target.
-+  command activateTarget
-+    parameters
-+      TargetID targetId
-+
-+  # Attaches to the target with given id.
-+  command attachToTarget
-+    parameters
-+      TargetID targetId
-+      # Enables "flat" access to the session via specifying sessionId attribute in the commands.
-+      # We plan to make this the default, deprecate non-flattened mode,
-+      # and eventually retire it. See crbug.com/991325.
-+      optional boolean flatten
-+    returns
-+      # Id assigned to the session.
-+      SessionID sessionId
-+
-+  # Attaches to the browser target, only uses flat sessionId mode.
-+  experimental command attachToBrowserTarget
-+    returns
-+      # Id assigned to the session.
-+      SessionID sessionId
-+
-+  # Closes the target. If the target is a page that gets closed too.
-+  command closeTarget
-+    parameters
-+      TargetID targetId
-+    returns
-+      # Always set to true. If an error occurs, the response indicates protocol error.
-+      deprecated boolean success
-+
-+  # Inject object to the target's main frame that provides a communication
-+  # channel with browser target.
-+  #
-+  # Injected object will be available as `window[bindingName]`.
-+  #
-+  # The object has the following API:
-+  # - `binding.send(json)` - a method to send messages over the remote debugging protocol
-+  # - `binding.onmessage = json => handleMessage(json)` - a callback that will be called for the protocol notifications and command responses.
-+  experimental command exposeDevToolsProtocol
-+    parameters
-+      TargetID targetId
-+      # Binding name, 'cdp' if not specified.
-+      optional string bindingName
-+      # If true, inherits the current root session's permissions (default: false).
-+      optional boolean inheritPermissions
-+
-+  # Creates a new empty BrowserContext. Similar to an incognito profile but you can have more than
-+  # one.
-+  command createBrowserContext
-+    parameters
-+      # If specified, disposes this context when debugging session disconnects.
-+      experimental optional boolean disposeOnDetach
-+      # Proxy server, similar to the one passed to --proxy-server
-+      experimental optional string proxyServer
-+      # Proxy bypass list, similar to the one passed to --proxy-bypass-list
-+      experimental optional string proxyBypassList
-+      # An optional list of origins to grant unlimited cross-origin access to.
-+      # Parts of the URL other than those constituting origin are ignored.
-+      experimental optional array of string originsWithUniversalNetworkAccess
-+    returns
-+      # The id of the context created.
-+      Browser.BrowserContextID browserContextId
-+
-+  # Returns all browser contexts created with `Target.createBrowserContext` method.
-+  command getBrowserContexts
-+    returns
-+      # An array of browser context ids.
-+      array of Browser.BrowserContextID browserContextIds
-+
-+  # Creates a new page.
-+  command createTarget
-+    parameters
-+      # The initial URL the page will be navigated to. An empty string indicates about:blank.
-+      string url
-+      # Frame left origin in DIP (requires newWindow to be true or headless shell).
-+      experimental optional integer left
-+      # Frame top origin in DIP (requires newWindow to be true or headless shell).
-+      experimental optional integer top
-+      # Frame width in DIP (requires newWindow to be true or headless shell).
-+      optional integer width
-+      # Frame height in DIP (requires newWindow to be true or headless shell).
-+      optional integer height
-+      # Frame window state (requires newWindow to be true or headless shell).
-+      # Default is normal.
-+      optional WindowState windowState
-+      # The browser context to create the page in.
-+      experimental optional Browser.BrowserContextID browserContextId
-+      # Whether BeginFrames for this target will be controlled via DevTools (headless shell only,
-+      # not supported on MacOS yet, false by default).
-+      experimental optional boolean enableBeginFrameControl
-+      # Whether to create a new Window or Tab (false by default, not supported by headless shell).
-+      optional boolean newWindow
-+      # Whether to create the target in background or foreground (false by default, not supported
-+      # by headless shell).
-+      optional boolean background
-+      # Whether to create the target of type "tab".
-+      experimental optional boolean forTab
-+      # Whether to create a hidden target. The hidden target is observable via protocol, but not
-+      # present in the tab UI strip. Cannot be created with `forTab: true`, `newWindow: true` or
-+      # `background: false`. The life-time of the tab is limited to the life-time of the session.
-+      experimental optional boolean hidden
-+    returns
-+      # The id of the page opened.
-+      TargetID targetId
-+
-+  # Detaches session with given id.
-+  command detachFromTarget
-+    parameters
-+      # Session to detach.
-+      optional SessionID sessionId
-+      # Deprecated.
-+      deprecated optional TargetID targetId
-+
-+  # Deletes a BrowserContext. All the belonging pages will be closed without calling their
-+  # beforeunload hooks.
-+  command disposeBrowserContext
-+    parameters
-+      Browser.BrowserContextID browserContextId
-+
-+  # Returns information about a target.
-+  experimental command getTargetInfo
-+    parameters
-+      optional TargetID targetId
-+    returns
-+      TargetInfo targetInfo
-+
-+  # Retrieves a list of available targets.
-+  command getTargets
-+    parameters
-+      # Only targets matching filter will be reported. If filter is not specified
-+      # and target discovery is currently enabled, a filter used for target discovery
-+      # is used for consistency.
-+      experimental optional TargetFilter filter
-+    returns
-+      # The list of targets.
-+      array of TargetInfo targetInfos
-+
-+  # Sends protocol message over session with given id.
-+  # Consider using flat mode instead; see commands attachToTarget, setAutoAttach,
-+  # and crbug.com/991325.
-+  deprecated command sendMessageToTarget
-+    parameters
-+      string message
-+      # Identifier of the session.
-+      optional SessionID sessionId
-+      # Deprecated.
-+      deprecated optional TargetID targetId
-+
-+  # Controls whether to automatically attach to new targets which are considered
-+  # to be directly related to this one (for example, iframes or workers).
-+  # When turned on, attaches to all existing related targets as well. When turned off,
-+  # automatically detaches from all currently attached targets.
-+  # This also clears all targets added by `autoAttachRelated` from the list of targets to watch
-+  # for creation of related targets.
-+  # You might want to call this recursively for auto-attached targets to attach
-+  # to all available targets.
-+  command setAutoAttach
-+    parameters
-+      # Whether to auto-attach to related targets.
-+      boolean autoAttach
-+      # Whether to pause new targets when attaching to them. Use `Runtime.runIfWaitingForDebugger`
-+      # to run paused targets.
-+      boolean waitForDebuggerOnStart
-+      # Enables "flat" access to the session via specifying sessionId attribute in the commands.
-+      # We plan to make this the default, deprecate non-flattened mode,
-+      # and eventually retire it. See crbug.com/991325.
-+      experimental optional boolean flatten
-+      # Only targets matching filter will be attached.
-+      experimental optional TargetFilter filter
-+
-+  # Adds the specified target to the list of targets that will be monitored for any related target
-+  # creation (such as child frames, child workers and new versions of service worker) and reported
-+  # through `attachedToTarget`. The specified target is also auto-attached.
-+  # This cancels the effect of any previous `setAutoAttach` and is also cancelled by subsequent
-+  # `setAutoAttach`. Only available at the Browser target.
-+  experimental command autoAttachRelated
-+    parameters
-+      TargetID targetId
-+      # Whether to pause new targets when attaching to them. Use `Runtime.runIfWaitingForDebugger`
-+      # to run paused targets.
-+      boolean waitForDebuggerOnStart
-+      # Only targets matching filter will be attached.
-+      experimental optional TargetFilter filter
-+
-+  # Controls whether to discover available targets and notify via
-+  # `targetCreated/targetInfoChanged/targetDestroyed` events.
-+  command setDiscoverTargets
-+    parameters
-+      # Whether to discover available targets.
-+      boolean discover
-+      # Only targets matching filter will be attached. If `discover` is false,
-+      # `filter` must be omitted or empty.
-+      experimental optional TargetFilter filter
-+
-+  # Enables target discovery for the specified locations, when `setDiscoverTargets` was set to
-+  # `true`.
-+  experimental command setRemoteLocations
-+    parameters
-+      # List of remote locations.
-+      array of RemoteLocation locations
-+
-+  # Issued when attached to target because of auto-attach or `attachToTarget` command.
-+  experimental event attachedToTarget
-+    parameters
-+      # Identifier assigned to the session used to send/receive messages.
-+      SessionID sessionId
-+      TargetInfo targetInfo
-+      boolean waitingForDebugger
-+
-+  # Issued when detached from target for any reason (including `detachFromTarget` command). Can be
-+  # issued multiple times per target if multiple sessions have been attached to it.
-+  experimental event detachedFromTarget
-+    parameters
-+      # Detached session identifier.
-+      SessionID sessionId
-+      # Deprecated.
-+      deprecated optional TargetID targetId
-+
-+  # Notifies about a new protocol message received from the session (as reported in
-+  # `attachedToTarget` event).
-+  event receivedMessageFromTarget
-+    parameters
-+      # Identifier of a session which sends a message.
-+      SessionID sessionId
-+      string message
-+      # Deprecated.
-+      deprecated optional TargetID targetId
-+
-+  # Issued when a possible inspection target is created.
-+  event targetCreated
-+    parameters
-+      TargetInfo targetInfo
-+
-+  # Issued when a target is destroyed.
-+  event targetDestroyed
-+    parameters
-+      TargetID targetId
-+
-+  # Issued when a target has crashed.
-+  event targetCrashed
-+    parameters
-+      TargetID targetId
-+      # Termination status type.
-+      string status
-+      # Termination error code.
-+      integer errorCode
-+
-+  # Issued when some information about a target has changed. This only happens between
-+  # `targetCreated` and `targetDestroyed`.
-+  event targetInfoChanged
-+    parameters
-+      TargetInfo targetInfo
-+
-+  # Opens a DevTools window for the target.
-+  experimental command openDevTools
-+    parameters
-+      # This can be the page or tab target ID.
-+      TargetID targetId
-+    returns
-+      # The targetId of DevTools page target.
-+      TargetID targetId
-diff --git a/pdl/domains/Tethering.pdl b/pdl/domains/Tethering.pdl
-new file mode 100644
-index 00000000..1b49b1cb
---- /dev/null
-+++ b/pdl/domains/Tethering.pdl
-@@ -0,0 +1,28 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# The Tethering domain defines methods and events for browser port binding.
-+experimental domain Tethering
-+
-+  # Request browser port binding.
-+  command bind
-+    parameters
-+      # Port number to bind.
-+      integer port
-+
-+  # Request browser port unbinding.
-+  command unbind
-+    parameters
-+      # Port number to unbind.
-+      integer port
-+
-+  # Informs that port was successfully bound and got a specified connection id.
-+  event accepted
-+    parameters
-+      # Port number that was successfully bound.
-+      integer port
-+      # Connection id to be used.
-+      string connectionId
-diff --git a/pdl/domains/Tracing.pdl b/pdl/domains/Tracing.pdl
-new file mode 100644
-index 00000000..44fc3f39
---- /dev/null
-+++ b/pdl/domains/Tracing.pdl
-@@ -0,0 +1,157 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+domain Tracing
-+  depends on IO
-+
-+  # Configuration for memory dump. Used only when "memory-infra" category is enabled.
-+  experimental type MemoryDumpConfig extends object
-+
-+  type TraceConfig extends object
-+    properties
-+      # Controls how the trace buffer stores data. The default is `recordUntilFull`.
-+      experimental optional enum recordMode
-+        recordUntilFull
-+        recordContinuously
-+        recordAsMuchAsPossible
-+        echoToConsole
-+      # Size of the trace buffer in kilobytes. If not specified or zero is passed, a default value
-+      # of 200 MB would be used.
-+      experimental optional number traceBufferSizeInKb
-+      # Turns on JavaScript stack sampling.
-+      experimental optional boolean enableSampling
-+      # Turns on system tracing.
-+      experimental optional boolean enableSystrace
-+      # Turns on argument filter.
-+      experimental optional boolean enableArgumentFilter
-+      # Included category filters.
-+      optional array of string includedCategories
-+      # Excluded category filters.
-+      optional array of string excludedCategories
-+      # Configuration to synthesize the delays in tracing.
-+      experimental optional array of string syntheticDelays
-+      # Configuration for memory dump triggers. Used only when "memory-infra" category is enabled.
-+      experimental optional MemoryDumpConfig memoryDumpConfig
-+
-+  # Data format of a trace. Can be either the legacy JSON format or the
-+  # protocol buffer format. Note that the JSON format will be deprecated soon.
-+  experimental type StreamFormat extends string
-+    enum
-+      json
-+      proto
-+
-+  # Compression type to use for traces returned via streams.
-+  experimental type StreamCompression extends string
-+    enum
-+      none
-+      gzip
-+
-+  # Details exposed when memory request explicitly declared.
-+  # Keep consistent with memory_dump_request_args.h and
-+  # memory_instrumentation.mojom
-+  experimental type MemoryDumpLevelOfDetail extends string
-+    enum
-+      background
-+      light
-+      detailed
-+
-+  # Backend type to use for tracing. `chrome` uses the Chrome-integrated
-+  # tracing service and is supported on all platforms. `system` is only
-+  # supported on Chrome OS and uses the Perfetto system tracing service.
-+  # `auto` chooses `system` when the perfettoConfig provided to Tracing.start
-+  # specifies at least one non-Chrome data source; otherwise uses `chrome`.
-+  experimental type TracingBackend extends string
-+    enum
-+      auto
-+      chrome
-+      system
-+
-+  # Stop trace events collection.
-+  command end
-+
-+  # Gets supported tracing categories.
-+  experimental command getCategories
-+    returns
-+      # A list of supported tracing categories.
-+      array of string categories
-+
-+  # Record a clock sync marker in the trace.
-+  experimental command recordClockSyncMarker
-+    parameters
-+      # The ID of this clock sync marker
-+      string syncId
-+
-+  # Request a global memory dump.
-+  experimental command requestMemoryDump
-+    parameters
-+      # Enables more deterministic results by forcing garbage collection
-+      optional boolean deterministic
-+      # Specifies level of details in memory dump. Defaults to "detailed".
-+      optional MemoryDumpLevelOfDetail levelOfDetail
-+    returns
-+      # GUID of the resulting global memory dump.
-+      string dumpGuid
-+      # True iff the global memory dump succeeded.
-+      boolean success
-+
-+  # Start trace events collection.
-+  command start
-+    parameters
-+      # Category/tag filter
-+      experimental deprecated optional string categories
-+      # Tracing options
-+      experimental deprecated optional string options
-+      # If set, the agent will issue bufferUsage events at this interval, specified in milliseconds
-+      experimental optional number bufferUsageReportingInterval
-+      # Whether to report trace events as series of dataCollected events or to save trace to a
-+      # stream (defaults to `ReportEvents`).
-+      optional enum transferMode
-+        ReportEvents
-+        ReturnAsStream
-+      # Trace data format to use. This only applies when using `ReturnAsStream`
-+      # transfer mode (defaults to `json`).
-+      optional StreamFormat streamFormat
-+      # Compression format to use. This only applies when using `ReturnAsStream`
-+      # transfer mode (defaults to `none`)
-+      experimental optional StreamCompression streamCompression
-+      optional TraceConfig traceConfig
-+      # Base64-encoded serialized perfetto.protos.TraceConfig protobuf message
-+      # When specified, the parameters `categories`, `options`, `traceConfig`
-+      # are ignored.
-+      experimental optional binary perfettoConfig
-+      # Backend type (defaults to `auto`)
-+      experimental optional TracingBackend tracingBackend
-+
-+  experimental event bufferUsage
-+    parameters
-+      # A number in range [0..1] that indicates the used size of event buffer as a fraction of its
-+      # total size.
-+      optional number percentFull
-+      # An approximate number of events in the trace log.
-+      optional number eventCount
-+      # A number in range [0..1] that indicates the used size of event buffer as a fraction of its
-+      # total size.
-+      optional number value
-+
-+  # Contains a bucket of collected trace events. When tracing is stopped collected events will be
-+  # sent as a sequence of dataCollected events followed by tracingComplete event.
-+  experimental event dataCollected
-+    parameters
-+      array of object value
-+
-+  # Signals that tracing is stopped and there is no trace buffers pending flush, all data were
-+  # delivered via dataCollected events.
-+  event tracingComplete
-+    parameters
-+      # Indicates whether some trace data is known to have been lost, e.g. because the trace ring
-+      # buffer wrapped around.
-+      boolean dataLossOccurred
-+      # A handle of the stream that holds resulting trace data.
-+      optional IO.StreamHandle stream
-+      # Trace data format of returned stream.
-+      optional StreamFormat traceFormat
-+      # Compression format of returned stream.
-+      optional StreamCompression streamCompression
-diff --git a/pdl/domains/WebAudio.pdl b/pdl/domains/WebAudio.pdl
-new file mode 100644
-index 00000000..5df199dd
---- /dev/null
-+++ b/pdl/domains/WebAudio.pdl
-@@ -0,0 +1,205 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain allows inspection of Web Audio API.
-+# https://webaudio.github.io/web-audio-api/
-+experimental domain WebAudio
-+
-+  # An unique ID for a graph object (AudioContext, AudioNode, AudioParam) in Web Audio API
-+  type GraphObjectId extends string
-+
-+  # Enum of BaseAudioContext types
-+  type ContextType extends string
-+    enum
-+      realtime
-+      offline
-+
-+  # Enum of AudioContextState from the spec
-+  type ContextState extends string
-+    enum
-+      suspended
-+      running
-+      closed
-+      interrupted
-+
-+  # Enum of AudioNode types
-+  type NodeType extends string
-+
-+  # Enum of AudioNode::ChannelCountMode from the spec
-+  type ChannelCountMode extends string
-+    enum
-+      clamped-max
-+      explicit
-+      max
-+
-+  # Enum of AudioNode::ChannelInterpretation from the spec
-+  type ChannelInterpretation extends string
-+    enum
-+      discrete
-+      speakers
-+
-+  # Enum of AudioParam types
-+  type ParamType extends string
-+
-+  # Enum of AudioParam::AutomationRate from the spec
-+  type AutomationRate extends string
-+    enum
-+      a-rate
-+      k-rate
-+
-+  # Fields in AudioContext that change in real-time.
-+  type ContextRealtimeData extends object
-+    properties
-+      # The current context time in second in BaseAudioContext.
-+      number currentTime
-+      # The time spent on rendering graph divided by render quantum duration,
-+      # and multiplied by 100. 100 means the audio renderer reached the full
-+      # capacity and glitch may occur.
-+      number renderCapacity
-+      # A running mean of callback interval.
-+      number callbackIntervalMean
-+      # A running variance of callback interval.
-+      number callbackIntervalVariance
-+
-+  # Protocol object for BaseAudioContext
-+  type BaseAudioContext extends object
-+    properties
-+      GraphObjectId contextId
-+      ContextType contextType
-+      ContextState contextState
-+      optional ContextRealtimeData realtimeData
-+      # Platform-dependent callback buffer size.
-+      number callbackBufferSize
-+      # Number of output channels supported by audio hardware in use.
-+      number maxOutputChannelCount
-+      # Context sample rate.
-+      number sampleRate
-+
-+# Protocol object for AudioListener
-+  type AudioListener extends object
-+    properties
-+      GraphObjectId listenerId
-+      GraphObjectId contextId
-+
-+  # Protocol object for AudioNode
-+  type AudioNode extends object
-+    properties
-+      GraphObjectId nodeId
-+      GraphObjectId contextId
-+      NodeType nodeType
-+      number numberOfInputs
-+      number numberOfOutputs
-+      number channelCount
-+      ChannelCountMode channelCountMode
-+      ChannelInterpretation channelInterpretation
-+
-+  # Protocol object for AudioParam
-+  type AudioParam extends object
-+    properties
-+      GraphObjectId paramId
-+      GraphObjectId nodeId
-+      GraphObjectId contextId
-+      ParamType paramType
-+      AutomationRate rate
-+      number defaultValue
-+      number minValue
-+      number maxValue
-+
-+  # Enables the WebAudio domain and starts sending context lifetime events.
-+  command enable
-+
-+  # Disables the WebAudio domain.
-+  command disable
-+
-+  # Fetch the realtime data from the registered contexts.
-+  command getRealtimeData
-+    parameters
-+      GraphObjectId contextId
-+    returns
-+      ContextRealtimeData realtimeData
-+
-+  # Notifies that a new BaseAudioContext has been created.
-+  event contextCreated
-+    parameters
-+      BaseAudioContext context
-+
-+  # Notifies that an existing BaseAudioContext will be destroyed.
-+  event contextWillBeDestroyed
-+    parameters
-+      GraphObjectId contextId
-+
-+  # Notifies that existing BaseAudioContext has changed some properties (id stays the same)..
-+  event contextChanged
-+    parameters
-+      BaseAudioContext context
-+
-+# Notifies that the construction of an AudioListener has finished.
-+  event audioListenerCreated
-+    parameters
-+      AudioListener listener
-+
-+  # Notifies that a new AudioListener has been created.
-+  event audioListenerWillBeDestroyed
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId listenerId
-+
-+  # Notifies that a new AudioNode has been created.
-+  event audioNodeCreated
-+    parameters
-+      AudioNode node
-+
-+  # Notifies that an existing AudioNode has been destroyed.
-+  event audioNodeWillBeDestroyed
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId nodeId
-+
-+  # Notifies that a new AudioParam has been created.
-+  event audioParamCreated
-+    parameters
-+      AudioParam param
-+
-+  # Notifies that an existing AudioParam has been destroyed.
-+  event audioParamWillBeDestroyed
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId nodeId
-+      GraphObjectId paramId
-+
-+  # Notifies that two AudioNodes are connected.
-+  event nodesConnected
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId sourceId
-+      GraphObjectId destinationId
-+      optional number sourceOutputIndex
-+      optional number destinationInputIndex
-+
-+  # Notifies that AudioNodes are disconnected. The destination can be null, and it means all the outgoing connections from the source are disconnected.
-+  event nodesDisconnected
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId sourceId
-+      GraphObjectId destinationId
-+      optional number sourceOutputIndex
-+      optional number destinationInputIndex
-+
-+  # Notifies that an AudioNode is connected to an AudioParam.
-+  event nodeParamConnected
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId sourceId
-+      GraphObjectId destinationId
-+      optional number sourceOutputIndex
-+
-+  # Notifies that an AudioNode is disconnected to an AudioParam.
-+  event nodeParamDisconnected
-+    parameters
-+      GraphObjectId contextId
-+      GraphObjectId sourceId
-+      GraphObjectId destinationId
-+      optional number sourceOutputIndex
-diff --git a/pdl/domains/WebAuthn.pdl b/pdl/domains/WebAuthn.pdl
-new file mode 100644
-index 00000000..0ef007ce
---- /dev/null
-+++ b/pdl/domains/WebAuthn.pdl
-@@ -0,0 +1,230 @@
-+# Copyright 2017 The Chromium Authors
-+# Use of this source code is governed by a BSD-style license that can be
-+# found in the LICENSE file.
-+#
-+# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
-+
-+# This domain allows configuring virtual authenticators to test the WebAuthn
-+# API.
-+experimental domain WebAuthn
-+  type AuthenticatorId extends string
-+
-+  type AuthenticatorProtocol extends string
-+    enum
-+      # Universal 2nd Factor.
-+      u2f
-+      # Client To Authenticator Protocol 2.
-+      ctap2
-+
-+  type Ctap2Version extends string
-+    enum
-+      ctap2_0
-+      ctap2_1
-+
-+  type AuthenticatorTransport extends string
-+    enum
-+      # Cross-Platform authenticator attachments:
-+      usb
-+      nfc
-+      ble
-+      cable
-+      # Platform authenticator attachment:
-+      internal
-+
-+  type VirtualAuthenticatorOptions extends object
-+    properties
-+      AuthenticatorProtocol protocol
-+      # Defaults to ctap2_0. Ignored if |protocol| == u2f.
-+      optional Ctap2Version ctap2Version
-+      AuthenticatorTransport transport
-+      # Defaults to false.
-+      optional boolean hasResidentKey
-+      # Defaults to false.
-+      optional boolean hasUserVerification
-+      # If set to true, the authenticator will support the largeBlob extension.
-+      # https://w3c.github.io/webauthn#largeBlob
-+      # Defaults to false.
-+      optional boolean hasLargeBlob
-+      # If set to true, the authenticator will support the credBlob extension.
-+      # https://fidoalliance.org/specs/fido-v2.1-rd-20201208/fido-client-to-authenticator-protocol-v2.1-rd-20201208.html#sctn-credBlob-extension
-+      # Defaults to false.
-+      optional boolean hasCredBlob
-+      # If set to true, the authenticator will support the minPinLength extension.
-+      # https://fidoalliance.org/specs/fido-v2.1-ps-20210615/fido-client-to-authenticator-protocol-v2.1-ps-20210615.html#sctn-minpinlength-extension
-+      # Defaults to false.
-+      optional boolean hasMinPinLength
-+      # If set to true, the authenticator will support the prf extension.
-+      # https://w3c.github.io/webauthn/#prf-extension
-+      # Defaults to false.
-+      optional boolean hasPrf
-+      # If set to true, tests of user presence will succeed immediately.
-+      # Otherwise, they will not be resolved. Defaults to true.
-+      optional boolean automaticPresenceSimulation
-+      # Sets whether User Verification succeeds or fails for an authenticator.
-+      # Defaults to false.
-+      optional boolean isUserVerified
-+      # Credentials created by this authenticator will have the backup
-+      # eligibility (BE) flag set to this value. Defaults to false.
-+      # https://w3c.github.io/webauthn/#sctn-credential-backup
-+      optional boolean defaultBackupEligibility
-+      # Credentials created by this authenticator will have the backup state
-+      # (BS) flag set to this value. Defaults to false.
-+      # https://w3c.github.io/webauthn/#sctn-credential-backup
-+      optional boolean defaultBackupState
-+
-+  type Credential extends object
-+    properties
-+      binary credentialId
-+      boolean isResidentCredential
-+      # Relying Party ID the credential is scoped to. Must be set when adding a
-+      # credential.
-+      optional string rpId
-+      # The ECDSA P-256 private key in PKCS#8 format.
-+      binary privateKey
-+      # An opaque byte sequence with a maximum size of 64 bytes mapping the
-+      # credential to a specific user.
-+      optional binary userHandle
-+      # Signature counter. This is incremented by one for each successful
-+      # assertion.
-+      # See https://w3c.github.io/webauthn/#signature-counter
-+      integer signCount
-+      # The large blob associated with the credential.
-+      # See https://w3c.github.io/webauthn/#sctn-large-blob-extension
-+      optional binary largeBlob
-+      # Assertions returned by this credential will have the backup eligibility
-+      # (BE) flag set to this value. Defaults to the authenticator's
-+      # defaultBackupEligibility value.
-+      optional boolean backupEligibility
-+      # Assertions returned by this credential will have the backup state (BS)
-+      # flag set to this value. Defaults to the authenticator's
-+      # defaultBackupState value.
-+      optional boolean backupState
-+      # The credential's user.name property. Equivalent to empty if not set.
-+      # https://w3c.github.io/webauthn/#dom-publickeycredentialentity-name
-+      optional string userName
-+      # The credential's user.displayName property. Equivalent to empty if
-+      # not set.
-+      # https://w3c.github.io/webauthn/#dom-publickeycredentialuserentity-displayname
-+      optional string userDisplayName
-+
-+  # Enable the WebAuthn domain and start intercepting credential storage and
-+  # retrieval with a virtual authenticator.
-+  command enable
-+    parameters
-+      # Whether to enable the WebAuthn user interface. Enabling the UI is
-+      # recommended for debugging and demo purposes, as it is closer to the real
-+      # experience. Disabling the UI is recommended for automated testing.
-+      # Supported at the embedder's discretion if UI is available.
-+      # Defaults to false.
-+      optional boolean enableUI
-+
-+  # Disable the WebAuthn domain.
-+  command disable
-+
-+  # Creates and adds a virtual authenticator.
-+  command addVirtualAuthenticator
-+    parameters
-+      VirtualAuthenticatorOptions options
-+    returns
-+      AuthenticatorId authenticatorId
-+
-+  # Resets parameters isBogusSignature, isBadUV, isBadUP to false if they are not present.
-+  command setResponseOverrideBits
-+    parameters
-+      AuthenticatorId authenticatorId
-+      # If isBogusSignature is set, overrides the signature in the authenticator response to be zero.
-+      # Defaults to false.
-+      optional boolean isBogusSignature
-+      # If isBadUV is set, overrides the UV bit in the flags in the authenticator response to
-+      # be zero. Defaults to false.
-+      optional boolean isBadUV
-+      # If isBadUP is set, overrides the UP bit in the flags in the authenticator response to
-+      # be zero. Defaults to false.
-+      optional boolean isBadUP
-+
-+  # Removes the given authenticator.
-+  command removeVirtualAuthenticator
-+    parameters
-+      AuthenticatorId authenticatorId
-+
-+  # Adds the credential to the specified authenticator.
-+  command addCredential
-+    parameters
-+      AuthenticatorId authenticatorId
-+      Credential credential
-+
-+  # Returns a single credential stored in the given virtual authenticator that
-+  # matches the credential ID.
-+  command getCredential
-+    parameters
-+      AuthenticatorId authenticatorId
-+      binary credentialId
-+    returns
-+      Credential credential
-+
-+  # Returns all the credentials stored in the given virtual authenticator.
-+  command getCredentials
-+    parameters
-+      AuthenticatorId authenticatorId
-+    returns
-+      array of Credential credentials
-+
-+  # Removes a credential from the authenticator.
-+  command removeCredential
-+    parameters
-+      AuthenticatorId authenticatorId
-+      binary credentialId
-+
-+  # Clears all the credentials from the specified device.
-+  command clearCredentials
-+    parameters
-+      AuthenticatorId authenticatorId
-+
-+  # Sets whether User Verification succeeds or fails for an authenticator.
-+  # The default is true.
-+  command setUserVerified
-+    parameters
-+      AuthenticatorId authenticatorId
-+      boolean isUserVerified
-+
-+  # Sets whether tests of user presence will succeed immediately (if true) or fail to resolve (if false) for an authenticator.
-+  # The default is true.
-+  command setAutomaticPresenceSimulation
-+    parameters
-+      AuthenticatorId authenticatorId
-+      boolean enabled
-+
-+  # Allows setting credential properties.
-+  # https://w3c.github.io/webauthn/#sctn-automation-set-credential-properties
-+  command setCredentialProperties
-+    parameters
-+      AuthenticatorId authenticatorId
-+      binary credentialId
-+      optional boolean backupEligibility
-+      optional boolean backupState
-+
-+  # Triggered when a credential is added to an authenticator.
-+  event credentialAdded
-+    parameters
-+      AuthenticatorId authenticatorId
-+      Credential credential
-+
-+  # Triggered when a credential is deleted, e.g. through
-+  # PublicKeyCredential.signalUnknownCredential().
-+  event credentialDeleted
-+    parameters
-+      AuthenticatorId authenticatorId
-+      binary credentialId
-+
-+  # Triggered when a credential is updated, e.g. through
-+  # PublicKeyCredential.signalCurrentUserDetails().
-+  event credentialUpdated
-+    parameters
-+      AuthenticatorId authenticatorId
-+      Credential credential
-+
-+  # Triggered when a credential is used in a webauthn assertion.
-+  event credentialAsserted
-+    parameters
-+      AuthenticatorId authenticatorId
-+      Credential credential
-```
-
 ## Roll protocol to r1498597 — _2025-08-08T04:34:59.000Z_
 ######  Diff: [`c7b0419...418ad80`](https://github.com/ChromeDevTools/devtools-protocol/compare/c7b0419...418ad80)