+/** configuration_spec::feature_flags: Buffered content is sent compressed if the client supports it. */
+#define RUNTIME_FEATURE_COMPRESSION 1024U
+
+/** configuration_spec::feature_flags: Pipelined requests are served instead of being discarded. */
+#define RUNTIME_FEATURE_TOLERATE_PIPELINING 2048U
+
+/** configuration_spec::feature_flags: Proxy authentication headers are forwarded instead of removed. */
+#define RUNTIME_FEATURE_FORWARD_PROXY_AUTHENTICATION_HEADERS 4096U
+