def invalidate(self, assoc_handle, dumb):
        if dumb:
            key = self._dumb_key
        else:
            key = self._normal_key
        self.store.removeAssociation(key, assoc_handle)
Invalidates the association with the given handle.
dataset/ETHPy150Open CollabQ/CollabQ/openid/server/server.py/Signatory.invalidate