def dragEnterEvent(self, event):
        mimeData = event.mimeData()
        if hasattr(mimeData, 'versionId'):
            event.accept()
        else:
            event.ignore()
Average squared difference between Q value of action and target, y.
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/packages/spreadsheet/spreadsheet_tab.py/StandardWidgetSheetTab.dragEnterEvent--crossover with--dataset/ETHPy150Open ifp-uiuc/anna/anna/models/__init__.py/ReinforcementModel.eval