How to use the guizero.utilities.raise_error function in guizero

"""
        An abstract class for a component in guizero.
        """
        super(Component, self).__init__(tk)

        self._master = master
        self._description = description
        self._events = EventManager(self, tk)
        self._displayable = displayable

        # check the master
        if self.master is not None:
            if isinstance(master, Container):
                self.master._add_child(self)
            else:
                utils.raise_error("{}\nMaster is not an [App], [Window] or [Box]".format(description))

def _create_waffle(self):
        if self._height == "fill" or self._width == "fill":
            utils.raise_error("{}\nCannot use 'fill' for width and height.".format(self.description))
            
        self._create_canvas()
        self._size_waffle()
        self._draw_waffle()

def _load_image(self):
        if self._height == "fill" or self._width == "fill":
            utils.raise_error("{}\nCannot use 'fill' for width and height.".format(self.description))

        if self._image_source is not None:

            # stop any animation which might still be playing
            if self._image_player:
                self._image_player.stop()

            # load the image and set its properties
            self._image = utils.GUIZeroImage(self._image_source, self._width, self._height)

            self._width = self._image.width
            self._height = self._image.height

            # if its an animation, start it up
            if self._image.animation:
                self._image_player = utils.AnimationPlayer(self, self._image, self._update_tk_image)

def _load_image(self):
        if self._height == "fill" or self._width == "fill":
            utils.raise_error("{}\nCannot use 'fill' for width and height when using a image.".format(self.description))

        # stop any animation which might still be playing
        if self._image_player:
            self._image_player.stop()

        self._image = utils.GUIZeroImage(self._image_source, self._width, self._height)

        # update the tk image
        # if its an animation, start it up
        if self._image.animation:
            self._image_player = utils.AnimationPlayer(self, self._image, self._update_tk_image)
        else:
            self._update_tk_image(self._image.tk_image)

        # set the width and height of the widget to match the image if they are None
        super(PushButton, self.__class__).resize(