def METHOD_NAME():
    # language=rst
    """
    Style
    =====
    iommi has the goal to be easy to integrate into your existing code base,
    in addition to being great for developing new products. In order to
    accomplish both these goals we need to be able to plug in to whatever
    CSS framework you have. By default iommi uses a bootstrap style, but
    it also ships with a few other style definitions, and you can define your
    own. Styles in iommi do more than just apply CSS classes, you can target
    any configuration in iommi with style definitions. This means not just
    how things look, but also how they work.
    The styles iommi ships with are:
    """
    # @test
    style_names = (
        # @end
        # language=rst
        '''
        - bootstrap
        - bootstrap5
        - bulma
        - foundation
        - semantic_ui
        - water
        - uikit
        - django_admin
        '''
        # @test
    ).replace('- ', '').strip().split('\n')
    style_names = [x.strip() for x in style_names]
    from iommi.style import _styles
    assert set(style_names) == {x.name for x in _styles.values() if not x.internal}
    # @end
    # language=rst
    """
    There are also some internal styles, most notably `base` which is used for
    common style data for all styles, and `test` which is used for the tests.
    You can change which style your app uses by default by setting
    `IOMMI_DEFAULT_STYLE` to the name of your style in the Django settings.
    """