Lib doesn't work with JSON serialized cache

[striveforbest]

I am using django-redis as my cache backend:

    CACHES = values.DictValue({
        'default': {
            'BACKEND': 'django_redis.cache.RedisCache',
            'OPTIONS': {
                'CLIENT_CLASS': 'django_redis.client.DefaultClient',
                'COMPRESSOR': 'django_redis.compressors.zlib.ZlibCompressor',
                'SERIALIZER': 'django_redis.serializers.json.JSONSerializer',
            }
        }
    })

Trying to use the following piece of code:

        if not flag_is_active(request, 'dashboard'):
            return redirect('product-list')

and tracing it down to waffle.models get method on line 36 (https://github.com/django-waffle/django-waffle/blob/51659117a25b97a59d96970a325c462499f33b15/waffle/models.py#L51)

Getting this error:

TypeError: Object of type FeatureFlag is not JSON serializable

Which makes sense. Any recommendation?