(self, key)
Remove the keyed message; raise KeyError if it doesn't exist.
Remove the keyed message; raise KeyError if it doesn't exist.
Remove the keyed message ; raise KeyError if it doesn t exist .
def remove(self, key):
        """Remove the keyed message; raise KeyError if it doesn't exist."""
        raise NotImplementedError('Method must be implemented by subclass')
def remove ( self , key ) : raise NotImplementedError ( 'Method must be implemented by subclass' )