code: def execute_on_member(self, member, task):
          
          uuid = self._get_uuid()
          address = member.address
          return self._execute_on_member(address, uuid, self._to_data(task))
docs: Executes a task on the specified member.
  
          :param member: (Member), the specified member.
          :param task: (Task), the task executed on the specified member.
          :return: (:class:`~hazelcast.future.Future`), Future representing pending completion of the task.