def init_widget(self):
        super(WxSplitItem, self).init_widget()
        d = self.declaration
        self.set_stretch(d.stretch)
        self.set_collapsible(d.collapsible)
Initialize the underyling widget.
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/wx/wx_split_item.py/WxSplitItem.init_widget