This method enqueues the given request to be sent. Its send
        state will be saved until a response arrives, and a ``Future``
        that will be resolved when the response arrives will be returned:

        .. code-block:: python

            async def method():
                # Sending (enqueued for the send loop)
                future = sender.send(request)
                # Receiving (waits for the receive loop to read the result)
                result = await future

        Designed like this because Telegram may send the response at
        any point, and it can send other items while one waits for it.
        Once the response for this future arrives, it is set with the
        received result, quite similar to how a ``receive()`` call
        would otherwise work.

        Since the receiving part is "built in" the future, it's
        impossible to await receive a result that was never sent.

def send(self, request, ordered=False):
        """
        This method enqueues the given request to be sent. Its send
        state will be saved until a response arrives, and a ``Future``
        that will be resolved when the response arrives will be returned:

        .. code-block:: python

            async def method():
                # Sending (enqueued for the send loop)
                future = sender.send(request)
                # Receiving (waits for the receive loop to read the result)
                result = await future

        Designed like this because Telegram may send the response at
        any point, and it can send other items while one waits for it.
        Once the response for this future arrives, it is set with the
        received result, quite similar to how a ``receive()`` call
        would otherwise work.

        Since the receiving part is "built in" the future, it's
        impossible to await receive a result that was never sent.
        """
        if not self._user_connected:
            raise ConnectionError('Cannot send requests while disconnected')

        if not utils.is_list_like(request):
            state = RequestState(request, self._loop)
            self._send_queue.append(state)
            return state.future
        else:
            states = []
            futures = []
            state = None
            for req in request:
                state = RequestState(req, self._loop, after=ordered and state)
                states.append(state)
                futures.append(state.future)

            self._send_queue.extend(states)
            return futures