(self)
This method should be called before pickling corresponding instances.
        After that, the font property will become unavailable.
This method should be called before pickling corresponding instances.
        After that, the font property will become unavailable.
This method should be called before pickling corresponding instances . After that the font property will become unavailable .
def release_font_resource(self) -> None:
        """This method should be called before pickling corresponding instances.
        After that, the font property will become unavailable.
        """
        self.set_font(None)
def release_font_resource ( self ) -> None : self . set_font ( None )