See: https://core.telegram.org/bots/api#sendmediagroup

        :type media: array of `InputMedia <https://core.telegram.org/bots/api#inputmedia>`_ objects
        :param media:
            To indicate media locations, each InputMedia object's ``media`` field
            should be one of these:

            - string: ``file_id`` for a file existing on Telegram servers
            - string: HTTP URL of a file from the Internet
            - file-like object: obtained by ``open(path, 'rb')``
            - tuple: (form-data name, file-like object)
            - tuple: (form-data name, (filename, file-like object))

            In case of uploading, you may supply customized multipart/form-data
            names for each uploaded file (as in last 2 options above). Otherwise,
            telepot assigns unique names to each uploaded file. Names assigned by
            telepot will not collide with user-supplied names, if any.

def sendMediaGroup(self, chat_id, media,
                       disable_notification=None,
                       reply_to_message_id=None):
        """
        See: https://core.telegram.org/bots/api#sendmediagroup

        :type media: array of `InputMedia <https://core.telegram.org/bots/api#inputmedia>`_ objects
        :param media:
            To indicate media locations, each InputMedia object's ``media`` field
            should be one of these:

            - string: ``file_id`` for a file existing on Telegram servers
            - string: HTTP URL of a file from the Internet
            - file-like object: obtained by ``open(path, 'rb')``
            - tuple: (form-data name, file-like object)
            - tuple: (form-data name, (filename, file-like object))

            In case of uploading, you may supply customized multipart/form-data
            names for each uploaded file (as in last 2 options above). Otherwise,
            telepot assigns unique names to each uploaded file. Names assigned by
            telepot will not collide with user-supplied names, if any.
        """
        p = _strip(locals(), more=['media'])
        legal_media, files_to_attach = _split_input_media_array(media)

        p['media'] = legal_media
        return self._api_request('sendMediaGroup', _rectify(p), files_to_attach)