code: def submit(self, method, method_args=(), method_kwargs={}, done_callback=None, done_kwargs={}, loop=None):
          '''
          used to send async notifications
          :param method:
          :param method_args:
          :param method_kwargs:
          :param done_callback:
          :param done_kwargs:
          :param loop:
          :return:
          '''
          _future = self.pool.submit(method, *method_args, **method_kwargs)
          self.current_id += 1
          if done_callback:
              _future.add_done_callback(lambda _f:done_callback(_f,loop,**done_kwargs))#done kwargs, hardcoded kwargs
          self.request_pool[self.current_id] = _future
          return self.current_id, _futurf submit(self, method, method_args=(), method_kwargs={}, done_callback=None, done_kwargs={}, loop=None):
          '''
          used to send async notifications
          :param method:
          :param method_args:
          :param method_kwargs:
          :param done_callback:
          :param done_kwargs:
          :param loop:
          :return:
          '''
          _future = self.pool.submit(method, *method_args, **method_kwargs)
          self.current_id += 1
          if done_callback:
              _future.add_done_callback(lambda _f:done_callback(_f,loop,**done_kwargs))#done kwargs, hardcoded kwargs
          self.request_pool[self.current_id] = _future
          return self.current_id, _future
docs: used to send async notifications
          :param method:
          :param method_args:
          :param method_kwargs:
          :param done_callback:
          :param done_kwargs:
          :param loop:
          :return: