-type cfapi_feature_config() ::
          #{project := binary(),
            environment := binary(),
            feature := binary(),
            state := cfapi_feature_state:cfapi_feature_state(),
            kind := binary(),
            variations := list(),
            rules => list(),
            defaultServe := cfapi_serve:cfapi_serve(),
            offVariation := binary(),
            prerequisites => list(),
            variationToTargetMap => list(),
            version => integer()}.