def to_call_agraph(self):
        """ Build a PyGraphviz AGraph object corresponding to a call graph of
        functions. """

        A = nx.nx_agraph.to_agraph(self.call_graph)
        A.graph_attr.update({"dpi": 227, "fontsize": 20, "fontname": "Menlo"})
        A.node_attr.update(
            {"shape": "rectangle", "color": "#650021", "style": "rounded"}
        )
        A.edge_attr.update({"color": "#650021", "arrowsize": 0.5})
        return A
def to_call_agraph ( self ) : A = nx . nx_agraph . to_agraph ( self . call_graph ) A . graph_attr . update ( { "dpi" : 227 , "fontsize" : 20 , "fontname" : "Menlo" } ) A . node_attr . update ( { "shape" : "rectangle" , "color" : "#650021" , "style" : "rounded" } ) A . edge_attr . update ( { "color" : "#650021" , "arrowsize" : 0.5 } ) return A
Build a PyGraphviz AGraph object corresponding to a call graph of
        functions.