def write_edge (self, node):
        """Write one edge."""
        self.writeln(u"  edge [")
        self.writeln(u'    label  "%s"' % node["edge"])
        self.writeln(u"    source %d" % self.nodes[node["parent_url"]]["id"])
        self.writeln(u"    target %d" % node["id"])
        if self.has_part("result"):
            self.writeln(u"    valid  %d" % node["valid"])
        self.writeln(u"  ]")
def write_edge ( self , node ) : self . writeln ( u"  edge [" ) self . writeln ( u'    label  "%s"' % node [ "edge" ] ) self . writeln ( u"    source %d" % self . nodes [ node [ "parent_url" ] ] [ "id" ] ) self . writeln ( u"    target %d" % node [ "id" ] ) if self . has_part ( "result" ) : self . writeln ( u"    valid  %d" % node [ "valid" ] ) self . writeln ( u"  ]" )
Write one edge.