def _Dynamic_Unsubscribe(self, request, response):
    """Unsubscribe a query.

    Args:
      request: UnsubscribeRequest
      response: UnsubscribeResponse (not used)
    """
    ValidateSubscriptionId(request.sub_id())
    ValidateTopic(request.topic())
    try:
      del self.topics[request.topic()][request.sub_id()]
    except __HOLE__:
      pass
    self._Write()
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/prospective_search/prospective_search_stub.py/ProspectiveSearchStub._Dynamic_Unsubscribe