def unsubscribe(self, connection):
        """This should only be called by ``ServerConnection.unsubscribe_session`` or our book-keeping will be broken"""
        self._subscribed_connections.discard(connection)
        self._last_unsubscribe_time = current_time()
def unsubscribe ( self , connection ) : self . _subscribed_connections . discard ( connection ) self . _last_unsubscribe_time = current_time ( )
This should only be called by ``ServerConnection.unsubscribe_session`` or our book-keeping will be broken