code: def send_html(self, html, body=None, msgtype="m.text"):
          
          return self.client.api.send_message_event(
              self.room_id, "m.room.message", self.get_html_content(html, body, msgtype))
docs: Send an html formatted message.
  
          Args:
              html (str): The html formatted message to be sent.
              body (str): The unformatted body of the message to be sent.