def minimumSize(self):
        size = self._min_size
        if size.isValid():
            return size
        size = super(QDockFrameLayout, self).minimumSize()
        if not size.isValid():
            size = QSize(256, 192)
        self._min_size = size
        return size
Get the minimum size for the layout.
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/qt/docking/q_dock_frame_layout.py/QDockFrameLayout.minimumSize