Habari\FormUI::register PHP Method

public static register ( string $name, Callable $build_callback )
$name	string	The name of the form to register
$build_callback	Callable	The method to call to customize a form instance (FormUI $form, string $name, string $form_type)

    public static function register($name, $build_callback)
    {
        self::$registered_forms[$name] = $build_callback;
    }

FormUI