def on_close(self, callback):

        self._close_callback = callback
        return self
This command loads preference dependency nodes from "userPrefObjects.ma", if it exists, from the user preference
dataset/ETHPy150Open HenryHu/pybbs/xmpp/readstream.py/ReadStream.on_close--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.5/extras/completion/py/pymel/core/windows.py/loadPrefObjects