Removes edges from the graph. Takes optional arguments for 
        ``DictGraph.del_edge``.
        
        Arguments:
        
          - edges(iterable) Sequence of edges to be removed from the 
            ``DictGraph``.

def del_edges(self, edges, *args, **kwargs):
        """
        Removes edges from the graph. Takes optional arguments for 
        ``DictGraph.del_edge``.
        
        Arguments:
        
          - edges(iterable) Sequence of edges to be removed from the 
            ``DictGraph``.
            
        """
        for edge in edges:
            self.del_edge(edge, *args, **kwargs)