const net/http/internal/http2.cipher_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

one use

	net/http/internal/http2 (current package)
		ciphers.go#L211: 	cipher_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256        uint16 = 0xC02F