def map_cache_key_to_engine(engine)
      if cache_key = cache_key_for(engine)
        result_cache_key = ActiveSupport::Cache.expand_cache_key(cache_key, :rabl)
        @cache_key_to_engine[result_cache_key] = engine
        disable_cache_read_on_render(engine)
      end
    end
def map_cache_key_to_engine(engine)
      if cache_key = cache_key_for(engine)
        result_cache_key = ActiveSupport::Cache.expand_cache_key(cache_key, :rabl)
        @cache_key_to_engine[result_cache_key] = engine
        disable_cache_read_on_render(engine)
      end
    end
Maps a cache key to an engine