def sizeHint(self):
        pixmap = self._pixmap
        if pixmap is not None:
            return pixmap.size()
        return super(QImageView, self).sizeHint()
Creates the configuration for an id field on a node, using `to_global_id` to
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/qt/qt_image_view.py/QImageView.sizeHint--crossover with--dataset/ETHPy150Open graphql-python/graphql-relay-py/graphql_relay/node/node.py/global_id_field