code: def delete(self, msg, claim_id=None):
          
          msg_id = utils.get_id(msg)
          if claim_id:
              uri = "/%s/%s?claim_id=%s" % (self.uri_base, msg_id, claim_id)
          else:
              uri = "/%s/%s" % (self.uri_base, msg_id)
          return self._delete(uri)
docs: Deletes the specified message from its queue. If the message has been
          claimed, the ID of that claim must be passed as the 'claim_id'
          parameter.