def _on_closed(self):
        """Invoked by connections when they are closed."""
        self._connected.clear()
        if not self._closing:
            if self._on_close_callback:
                self._on_close_callback()
            else:
                raise exceptions.ConnectionError('closed')
def _on_closed ( self ) : self . _connected . clear ( ) if not self . _closing : if self . _on_close_callback : self . _on_close_callback ( ) else : raise exceptions . ConnectionError ( 'closed' )
Invoked by connections when they are closed.