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.

def send_html(self, html, body=None, msgtype="m.text"):
        """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.
        """
        return self.client.api.send_message_event(
            self.room_id, "m.room.message", self.get_html_content(html, body, msgtype))