def close(self):
        """Close and delete instance."""

        # remove callbacks
        Datastore.stores[self.domain].remove(self)

        # delete data after the last instance is gone
        if self.release_storage and not Datastore.stores[self.domain]:
            del Datastore.global_data[self.domain]

        del self
def close ( self ) : Datastore . stores [ self . domain ] . remove ( self ) if self . release_storage and not Datastore . stores [ self . domain ] : del Datastore . global_data [ self . domain ] del self
Close and delete instance.