Exclude optimizer instances from the state_dict #21
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If attribute 'optimizer' as a python object are pickled together, one may encounter a compatibility issue when loading it back.
(unless the same optimizer module is imported from the same path to recognize the saved attributes.)
The
self.optimizer, by default, expected to be filtered out, butself.after_scheduler.optimizerhas to be taken into account as well. So, I've overriden relevant methods to exclude optimizer instances from the state_dict.