def METHOD_NAME(self):
    requestBuilder = RequestMockBuilder(
        {"plus.activities.get": (None, '{"foo": "bar"}')}
    )
    plus = build(
        "plus",
        "v1",
        http=self.http,
        requestBuilder=requestBuilder,
        static_discovery=False,
    )
    activity = plus.activities().get(activityId="tag:blah").execute()
    self.assertEqual({"foo": "bar"}, activity)