Method _show_config_changed

traitlets/config/application.py:437–440

(self, change: Bunch)

    @observe("show_config")
    def _show_config_changed(self, change: Bunch) -> None:
        if change.new:
            self._save_start = self.start
            self.start = self.start_show_config  # type:ignore[method-assign]

    def __init__(self, **kwargs: t.Any) -> None:
        SingletonConfigurable.__init__(self, **kwargs)