code: def send_message(self, peer: Peer, text: str, reply: int=None, link_preview: bool=None, on_success: callable=None):
          
          pass
docs: Send message to peer.
          :param peer: Peer to send message to.
          :param text: Text to send.
          :param reply: Message object or message_id to reply to.
          :param link_preview: Whether or not to show the link preview for this message
          :param on_success: Callback to call when call is complete.