const crypto/tls.extensionALPN

8 uses

	crypto/tls (current package)
		common.go#L115: 	extensionALPN                    uint16 = 16
		handshake_messages.go#L237: 			echOuterExts = append(echOuterExts, extensionALPN)
		handshake_messages.go#L239: 			exts.AddUint16(extensionALPN)
		handshake_messages.go#L572: 		case extensionALPN:
		handshake_messages.go#L769: 		exts.AddUint16(extensionALPN)
		handshake_messages.go#L919: 		case extensionALPN:
		handshake_messages.go#L1016: 				b.AddUint16(extensionALPN)
		handshake_messages.go#L1068: 		case extensionALPN:

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)