# File lib/aws/core/cacheable.rb, line 35
      def cache_key
        @cache_key ||= begin
          endpoint_method = self.class.service_ruby_name + "_endpoint"
          config.signer.access_key_id + ":" +
            config.send(endpoint_method) + ":" +
            self.class.name + ":" +
            local_cache_key
        end
      end