def isRenderable(self):
        return bool(cmds.sets(self, q=True, r=True))
Mimics cmds.sets(self, q=True, renderable=True).
dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/core/nodetypes.py/ObjectSet.isRenderable