(self, event)
Abstract method to handle a `ServerClosedEvent`.

        :Parameters:
          - `event`: An instance of :class:`ServerClosedEvent`.
Abstract method to handle a `ServerClosedEvent`.
Abstract method to handle a ServerClosedEvent .
def closed(self, event):
        """Abstract method to handle a `ServerClosedEvent`.

        :Parameters:
          - `event`: An instance of :class:`ServerClosedEvent`.
        """
        raise NotImplementedError
def closed ( self , event ) : raise NotImplementedError