A convenience type used to receive both the streaming callable function’s yielded messages and its return value.

This can be used as the generic Response parameter to Callable to receive both the yielded messages and final return value of the streaming callable function.

The set of error status codes that can be returned from a Callable HTTPS trigger. These are the canonical error codes for Google APIs, as documented here: https://github.com/googleapis/googleapis/blob/master/google/rpc/code.proto#L26