Use this method to send a group of photos or videos as an album.

        Args:
            chat_id (``int`` | ``str``):
                Unique identifier (int) or username (str) of the target chat.
                For your personal cloud (Saved Messages) you can simply use "me" or "self".
                For a contact that exists in your Telegram address book you can use his phone number (str).

            media (List of :obj:`InputMediaPhoto` and :obj:`InputMediaVideo`):
                A list describing photos and videos to be sent, must include 2–10 items.

            disable_notification (``bool``, *optional*):
                Sends the message silently.
                Users will receive a notification with no sound.

            reply_to_message_id (``int``, *optional*):
                If the message is a reply, ID of the original message.

        Returns:
            On success, a :obj:`Messages <pyrogram.Messages>` object is returned containing all the
            single messages sent.

        Raises:
            :class:`RPCError <pyrogram.RPCError>` in case of a Telegram RPC error.

def send_media_group(
        self,
        chat_id: Union[int, str],
        media: List[Union["pyrogram.InputMediaPhoto", "pyrogram.InputMediaVideo"]],
        disable_notification: bool = None,
        reply_to_message_id: int = None
    ):
        """Use this method to send a group of photos or videos as an album.

        Args:
            chat_id (``int`` | ``str``):
                Unique identifier (int) or username (str) of the target chat.
                For your personal cloud (Saved Messages) you can simply use "me" or "self".
                For a contact that exists in your Telegram address book you can use his phone number (str).

            media (List of :obj:`InputMediaPhoto` and :obj:`InputMediaVideo`):
                A list describing photos and videos to be sent, must include 2–10 items.

            disable_notification (``bool``, *optional*):
                Sends the message silently.
                Users will receive a notification with no sound.

            reply_to_message_id (``int``, *optional*):
                If the message is a reply, ID of the original message.

        Returns:
            On success, a :obj:`Messages <pyrogram.Messages>` object is returned containing all the
            single messages sent.

        Raises:
            :class:`RPCError <pyrogram.RPCError>` in case of a Telegram RPC error.
        """
        multi_media = []

        for i in media:
            style = self.html if i.parse_mode.lower() == "html" else self.markdown

            if isinstance(i, pyrogram.InputMediaPhoto):
                if os.path.exists(i.media):
                    while True:
                        try:
                            media = self.send(
                                functions.messages.UploadMedia(
                                    peer=self.resolve_peer(chat_id),
                                    media=types.InputMediaUploadedPhoto(
                                        file=self.save_file(i.media)
                                    )
                                )
                            )
                        except FloodWait as e:
                            log.warning("Sleeping for {}s".format(e.x))
                            time.sleep(e.x)
                        else:
                            break

                    media = types.InputMediaPhoto(
                        id=types.InputPhoto(
                            id=media.photo.id,
                            access_hash=media.photo.access_hash,
                            file_reference=b""
                        )
                    )
                else:
                    try:
                        decoded = utils.decode(i.media)
                        fmt = "<iiqqqqi" if len(decoded) > 24 else "<iiqq"
                        unpacked = struct.unpack(fmt, decoded)
                    except (AssertionError, binascii.Error, struct.error):
                        raise FileIdInvalid from None
                    else:
                        if unpacked[0] != 2:
                            media_type = BaseClient.MEDIA_TYPE_ID.get(unpacked[0], None)

                            if media_type:
                                raise FileIdInvalid("The file_id belongs to a {}".format(media_type))
                            else:
                                raise FileIdInvalid("Unknown media type: {}".format(unpacked[0]))

                        media = types.InputMediaPhoto(
                            id=types.InputPhoto(
                                id=unpacked[2],
                                access_hash=unpacked[3],
                                file_reference=b""
                            )
                        )
            elif isinstance(i, pyrogram.InputMediaVideo):
                if os.path.exists(i.media):
                    while True:
                        try:
                            media = self.send(
                                functions.messages.UploadMedia(
                                    peer=self.resolve_peer(chat_id),
                                    media=types.InputMediaUploadedDocument(
                                        file=self.save_file(i.media),
                                        thumb=None if i.thumb is None else self.save_file(i.thumb),
                                        mime_type=self.guess_mime_type(i.media) or "video/mp4",
                                        attributes=[
                                            types.DocumentAttributeVideo(
                                                supports_streaming=i.supports_streaming or None,
                                                duration=i.duration,
                                                w=i.width,
                                                h=i.height
                                            ),
                                            types.DocumentAttributeFilename(file_name=os.path.basename(i.media))
                                        ]
                                    )
                                )
                            )
                        except FloodWait as e:
                            log.warning("Sleeping for {}s".format(e.x))
                            time.sleep(e.x)
                        else:
                            break

                    media = types.InputMediaDocument(
                        id=types.InputDocument(
                            id=media.document.id,
                            access_hash=media.document.access_hash,
                            file_reference=b""
                        )
                    )
                else:
                    try:
                        decoded = utils.decode(i.media)
                        fmt = "<iiqqqqi" if len(decoded) > 24 else "<iiqq"
                        unpacked = struct.unpack(fmt, decoded)
                    except (AssertionError, binascii.Error, struct.error):
                        raise FileIdInvalid from None
                    else:
                        if unpacked[0] != 4:
                            media_type = BaseClient.MEDIA_TYPE_ID.get(unpacked[0], None)

                            if media_type:
                                raise FileIdInvalid("The file_id belongs to a {}".format(media_type))
                            else:
                                raise FileIdInvalid("Unknown media type: {}".format(unpacked[0]))

                        media = types.InputMediaDocument(
                            id=types.InputDocument(
                                id=unpacked[2],
                                access_hash=unpacked[3],
                                file_reference=b""
                            )
                        )

            multi_media.append(
                types.InputSingleMedia(
                    media=media,
                    random_id=self.rnd_id(),
                    **style.parse(i.caption)
                )
            )

        while True:
            try:
                r = self.send(
                    functions.messages.SendMultiMedia(
                        peer=self.resolve_peer(chat_id),
                        multi_media=multi_media,
                        silent=disable_notification or None,
                        reply_to_msg_id=reply_to_message_id
                    )
                )
            except FloodWait as e:
                log.warning("Sleeping for {}s".format(e.x))
                time.sleep(e.x)
            else:
                break

        return pyrogram.Messages._parse(
            self,
            types.messages.Messages(
                messages=[m.message for m in filter(
                    lambda u: isinstance(u, (types.UpdateNewMessage, types.UpdateNewChannelMessage)),
                    r.updates
                )],
                users=r.users,
                chats=r.chats
            )
        )