def message_received(self, message):
    raise NotImplementedError()
Return start and end time objects
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/webapp/xmpp_handlers.py/BaseHandler.message_received--crossover with--dataset/ETHPy150Open pinax/symposion/symposion/schedule/forms.py/ScheduleSectionForm._get_start_end_times