(self, graph, *args, **kwds)
Abstract method, must be implemented in derived classes.
Abstract method, must be implemented in derived classes.
Abstract method must be implemented in derived classes .
def draw(self, graph, *args, **kwds):
        """Abstract method, must be implemented in derived classes."""
        raise NotImplementedError("abstract class")
def draw ( self , graph , * args , * * kwds ) : raise NotImplementedError ( "abstract class" )