def METHOD_NAME(self):
    """ Add a buttons for each available keyboard layout. When clicked,
    the buttons will change the keyboard layout to the one selected. """
    layouts = list(VKeyboard().available_layouts.keys())
    # Add the file in our app directory, the .json extension is required.
    layouts.append("numeric.json")
    for key in layouts:
        self.kbContainer.add_widget(
            Button(
                text=key,
                on_release=partial(self.set_layout, key)))