Add ScheduledEvent

index.d.ts

@@ -2,6 +2,27 @@ interface FetchEvent {
   passThroughOnException: () => void;
 }
 
+interface ScheduledEvent {
+  /**
+   * The type of event. This will always return `"scheduled"`.
+   */
+  type: string;
+  /**
+   * The time the `ScheduledEvent` was scheduled to be executed in 
+   * milliseconds since January 1, 1970, UTC. 
+   * It can be parsed as `new Date(event.scheduledTime)`
+   */
+  scheduledTime: number;
+  /**
+   * Use this method to notify the runtime to wait for asynchronous tasks 
+   * (e.g. logging, analytics to third-party services, streaming and caching). 
+   * The first `event.waitUntil` to fail will be observed and recorded as the 
+   * status in the Cron Trigger Past Events table. Otherwise, it will be 
+   * reported as a Success.
+   */
+  waitUntil(promise: Promise<any>): void;
+}
+
 interface BasicImageTransformations {
   /**
    * Maximum width in image pixels. The value must be an integer.
@@ -286,6 +307,7 @@ interface RequestInit {
 }
 
 declare function addEventListener(type: 'fetch', handler: (event: FetchEvent) => void): void;
+declare function addEventListener(type: 'scheduled', handler: (event: ScheduledEvent) => void): void;
 
 interface Request {
   cf: IncomingRequestCfProperties;