const github.com/refraction-networking/utls.extensionNextProtoNeg

4 uses

	github.com/refraction-networking/utls (current package)
		u_common.go#L35: 	extensionNextProtoNeg uint16 = 13172 // not IANA assigned. Removed by crypto/tls since Nov 2019
		u_tls_extensions.go#L70: 	case extensionNextProtoNeg:
		u_tls_extensions.go#L1610: 	b[0] = byte(extensionNextProtoNeg >> 8)
		u_tls_extensions.go#L1611: 	b[1] = byte(extensionNextProtoNeg & 0xff)