Returns an announcement.
This method returns the following error codes:
PERMISSION_DENIEDif the requesting user is not permitted to access the requested course or announcement, or for access errors.
INVALID_ARGUMENTif the request is malformed.
NOT_FOUNDif the requested course or announcement does not exist.
The URL uses Google API HTTP annotation syntax.
Identifier of the course. This identifier can be either the Classroom-assigned identifier or an
Identifier of the announcement.
The request body must be empty.
If successful, the response body contains an instance of
Requires one of the following OAuth scopes:
For more information, see the OAuth 2.0 Overview.