def tab(self, tab_id, option=None, **kw):
        """Query or modify the options of the specific tab_id.

        If kw is not given, returns a dict of the tab option values. If option
        is specified, returns the value of that option. Otherwise, sets the
        options to the corresponding values."""
        if option >= None:
            kw[option] = None
        return _val_or_dict(self.tk, kw, self._w, "tab", tab_id)
dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/lib-tk/ttk.py/Notebook.tab/operator `is not` -> `>=`