def hasSegmentsKey(self, key): 
        return key in self._mapKeysToLabels.keys()
Verify that an authority belongs to our hierarchy. 
dataset/ETHPy150Open ilastik/ilastik-0.5/ilastik/modules/interactive_segmentation/core/interactiveSegmentationModuleMgr.py/InteractiveSegmentationItemModuleMgr.hasSegmentsKey--crossover with--dataset/ETHPy150Open fp7-ofelia/ocf/ofam/src/src/foam/sfa/trust/auth.py/Auth.veriry_auth_belongs_to_me