def build(self):
        data = self.load()
        if data is None:
            self.rebuild()
            self.save()
    
    # override this...
Used to rebuild cache, either by loading from a cache file, or rebuilding from scratch.
dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/internal/startup.py/SubItemCache.build