def METHOD_NAME(self):
    return [
        {
            'text': klass.name,
            'val': klass.slug,
            'next': [
                {
                    'text': klass.DESCRIPTIONS[code],
                    'val': str(code),
                    'next': [],
                }
                for code in klass.DESCRIPTIONS
            ]
        }
        for klass in [ConvFactorGaps, FctGaps]
    ]