def __or__(self, other):
        return self.union(other)

    # g = g1 & g2
Set class `class_` on the visible child no. index of `node`.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/gis/geos/geometry.py/GEOSGeometry.__or__--crossover with--dataset/ETHPy150Open zackw/header-survey/sphinx/ext/html5_output.py/BaseTranslator.set_class_on_child