def clear(self):
        self.succ.clear()
        self.pred.clear()
        self.node.clear()
        self.graph.clear()
:rtype: `SelectionSet`
dataset/ETHPy150Open networkx/networkx/networkx/classes/tests/timingclasses.py/TimingDiGraph.clear--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/core/nodetypes.py/ObjectSet.getUnion