def get_children(self, item=None):
        """Returns a tuple of children belonging to item.

        If item is not specified, returns root children."""
        return self.tk.splitlist(
                self.tk.call(self._w, "children", item or '') or ())
dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/lib-tk/ttk.py/Treeview.get_children/original