'Create a speaker'

@requires_auth
@replace_event_id
@can_create(DAO)
@api.doc('create_speaker', responses=POST_RESPONSES, model=SPEAKER)
@speakers_marshal_with()
@api.expect(SPEAKER_POST)
def post(self, event_id):

    return DAO.create(event_id, self.api.payload, self.api.url_for(self, event_id=event_id))
