def METHOD_NAME(ttf):
    if 'fvar' in ttf:
        try:
            return {
                a.axisTag: {
                    'min': a.minValue,
                    'default': a.defaultValue,
                    'max': a.maxValue
                }
                for a in ttf['fvar'].axes
            }
        except Exception:
            logging.exception('Error reading axes')
    return None