const net/http/internal/http2.cipher_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384

one use

	net/http/internal/http2 (current package)
		ciphers.go#L212: 	cipher_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384        uint16 = 0xC030