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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_messages( self, chat_id: Union[int, str], message_ids: Union[int, Iterable[int]] = None, reply_to_message_ids: Union[int, Iterable[int]] = None, replies: int = 1 ) -> Union["pyrogram.Message", "pyrogram.Messages"]: """Use this method to get one or more messages that belong to a specific chat. You can retrieve up to 200 messages at once. 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). message_ids (``iterable``, *optional*):
 Pass a single message identifier or a list of message ids (as integers) to get the content of the message themselves. Iterators and Generators are also accepted. reply_to_message_ids (``iterable``, *optional*):
 Pass a single message identifier or a list of message ids (as integers) to get the content of the previous message you replied to using this message. Iterators and Generators are also accepted. If *message_ids* is set, this argument will be ignored. replies (``int``, *optional*):
 The number of subsequent replies to get for each message. Defaults to 1. Returns: On success and in case *message_ids* or *reply_to_message_ids* was an iterable, the returned value will be a :obj:`Messages <pyrogram.Messages>` even if a list contains just one element. Otherwise, if *message_ids* or *reply_to_message_ids* was an integer, the single requested :obj:`Message <pyrogram.Message>` is returned. Raises: :class:`RPCError <pyrogram.RPCError>` in case of a Telegram RPC error. """

        ids, ids_type = (
            (message_ids, types.InputMessageID) if message_ids
            else (reply_to_message_ids, types.InputMessageReplyTo) if reply_to_message_ids
            else (None, None)
        )

        if ids is None:
            raise ValueError("No argument supplied")

        peer = self.resolve_peer(chat_id)

        is_iterable = not isinstance(ids, int)
        ids = list(ids) if is_iterable else [ids]
        ids = [ids_type(id=i) for i in ids]

        if isinstance(peer, types.InputPeerChannel):
            rpc = functions.channels.GetMessages(channel=peer, id=ids)
        else:
            rpc = functions.messages.GetMessages(id=ids)

        while True:
            try:
                r = self.send(rpc)
            except FloodWait as e:
                log.warning("Sleeping for {}s".format(e.x))
                time.sleep(e.x)
            else:
                break

        messages = pyrogram.Messages._parse(self, r, replies=replies)

        return messages if is_iterable else messages.messages[0]