Debugger.asyncOperationStarted

Fired when an async operation is scheduled (while in a debugger stepping session).

{
  "name": "asyncOperationStarted",
  "parameters": [
    {
      "name": "operation",
      "$ref": "AsyncOperation",
      "description": "Information about the async operation."
    }
  ],
  "description": "Fired when an async operation is scheduled (while in a debugger stepping session).",
  "hidden": true
}