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def readPickleCache(filename, pickleVersion=1, source=None, verbose=None) def writePickleCache(data, filename, pickleVersion=1, source=None, verbose=None) class PickleCache: def picklePath(self, filename) class PickleCacheReader(PickleCache): def read(self, filename, pickleVersion=1, source=None, verbose=None) class PickleCacheWriter(PickleCache): def write(self, data, filename, pickleVersion=1, source=None, verbose=None)