const crypto/tls.extensionALPN

7 uses

	crypto/tls (current package)
		common.go#L92: 	extensionALPN                    uint16 = 16
		handshake_messages.go#L205: 				b.AddUint16(extensionALPN)
		handshake_messages.go#L490: 		case extensionALPN:
		handshake_messages.go#L653: 				b.AddUint16(extensionALPN)
		handshake_messages.go#L771: 		case extensionALPN:
		handshake_messages.go#L856: 				b.AddUint16(extensionALPN)
		handshake_messages.go#L891: 		case extensionALPN:

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)