Method add_attributes

lab/cust-elm-classes/gen_oxml_classes.py:40–42

(self, *names)

        self.attributes.append(AttributeDef(self, name, required, default))

    def add_attributes(self, *names):
        for name in names:
            self.attributes.append(AttributeDef(self, name, False, None))

    @property
    def indent(self):