@property
    def bind(self):
        if self._bind is not None:
            return self._bind

        for f in _from_objects(self):
            if f is self:
                continue
            engine = f.bind
            if engine is not None:
                return engine
        else:
            return None
contextMenuEvent(event: QGraphicsSceneContextMenuEvent) -> None
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/sql/base.py/Executable.bind--crossover with--dataset/ETHPy150Open VisTrails/VisTrails/vistrails/gui/pipeline_view.py/QGraphicsConfigureItem.contextMenuEvent