Invite a user to this room.

        Returns:
            boolean: Whether invitation was sent.

def invite_user(self, user_id):
        """Invite a user to this room.

        Returns:
            boolean: Whether invitation was sent.
        """
        try:
            self.client.api.invite_user(self.room_id, user_id)
            return True
        except MatrixRequestError:
            return False