def __init__(self, parent):
        super(wxSplitItem, self).__init__(parent)
        self._split_widget = None
        self._stretch = 0
        self.SetSizer(wxSingleWidgetSizer())
Allocates a range of key IDs for this model class.
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/wx/wx_split_item.py/wxSplitItem.__init__--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/model.py/Model._allocate_ids