def __init__(self, source, expandedItemId):
        super(ExpandEvent, self).__init__(source)
        self._expandedItemId = expandedItemId
status is an object with ivars modified, saved and synced.
dataset/ETHPy150Open rwl/muntjac/muntjac/ui/tree.py/ExpandEvent.__init__--crossover with--dataset/ETHPy150Open cpbotha/nvpy/nvpy/view.py/View.set_note_status