redis

# File activesupport/lib/active_support/cache/redis_cache_store.rb, line 185
      def redis
        @redis ||= begin
          pool_options = self.class.send(:retrieve_pool_options, redis_options)

          if pool_options.any?
            self.class.send(:ensure_connection_pool_added!)
            ::ConnectionPool.new(pool_options) { self.class.build_redis(**redis_options) }
          else
            self.class.build_redis(**redis_options)
          end
        end
      end