drop.entitlement.grant subscription must have is_batching_enabled param

[alexschastny]

in case of subscription drop.entitlement.grant we must use is_batching_enabled: true param https://dev.twitch.tv/docs/eventsub/eventsub-subscription-types/#drop-entitlement-grant-notification-example

otherwise will get an exception

{
    "error":"Bad Request",
    "status":400,
    "message":"is_batching_enabled must be true for drop.entitlement.grant subscriptions"
}

[Brandin]

Hi @alexschastny,

Thank you for your PR. It looks like your tests failed as the test for Drop Entitlements needs to be updated to include the change. Please update and push.

Thank you,
Brandin.

[alexschastny]

Yeah, wrong place in the test for the additional params, fixed!

[Brandin]

Hi @alexschastny,

Thank you for the changes. After considering this update, where this parameter is only applicable for 1 out of all of the EventSub Subscriptions at this time, we'll default the param to null and only include it in the body if it is set. You can see some examples of how we do this in some of the other Classes if you need any examples.

Thank you!
Brandin.