example code Feature request about midikit HOT 3 CLOSED

public class MidiModule: NSObject {
    let midiManager = MIDI.IO.Manager(
        clientName: "MIDIEventLogger",
        model: "LoggerApp",
        manufacturer: "elmcapp")
    
    public override init() {
        super.init() // must call NSObject init first
        
        do {
            midiManager.notificationHandler = { notification, manager in
                print("Core MIDI notification:", notification)
            }
            
            print("Starting MIDI manager.")
            try midiManager.start()
            
            print("Creating virtual input MIDI port.")
            let inputTag = "Virtual_MIDI_In"
            try midiManager.addInput(
                name: "LoggerApp MIDI In",
                tag: inputTag,
                uniqueID: .userDefaultsManaged(key: inputTag),
                receiveHandler: .events { [weak self] events in
                    // Note: this handler will be called on a background thread
                    // so call the next line on main if it may result in UI updates
                    DispatchQueue.main.async {
                        events.forEach { self?.receivedMIDIEvent($0) }
                    }
                }
            )
        } catch {
            print(error)
        }
    }
    
    private func receivedMIDIEvent(_ event: MIDI.Event) {
        switch event {
        case .noteOn(let payload):
            print("NoteOn:", payload.note, payload.velocity, payload.channel)
        case .noteOff(let payload):
            print("NoteOff:", payload.note, payload.velocity, payload.channel)
        case .cc(let payload):
            print("CC:", payload.controller, payload.value, payload.channel)
        case .programChange(let payload):
            print("PrgCh:", payload.program, payload.channel)
            
            // etc...
            
        default:
            break
        }
    }
}

class MidiModule: NSObject {
    let midiManager: MIDI.IO.Manager = {
        let newManager = MIDI.IO.Manager(
            clientName: "MIDIEventLogger",
            model: "LoggerApp",
            manufacturer: "elmcapp") { notification, manager in
                print("Core MIDI notification:", notification)
            }
        do {
            logger.debug("Starting MIDI manager")
            try newManager.start()

            logger.debug("Creating virtual input MIDI port")
            let inputTag = "Virtual_MIDI_In"
            try newManager.addInput(
                name: "LoggerApp MIDI In",
                tag: inputTag,
                uniqueID: .userDefaultsManaged(key: inputTag),
                receiveHandler: .events { [weak self] events in
                    // Note: this handler will be called on a background thread
                    // so call the next line on main if it may result in UI updates
                    DispatchQueue.main.async {
                        events.forEach { self?.receivedMIDIEvent($0) }
                    }
                }
            )
        } catch {
            logger.default(error)
        }
        
        return newManager
    }()

    private func receivedMIDIEvent(_ event: MIDI.Event) {
        switch event {
        case .noteOn(let payload):
            print("NoteOn:", payload.note, payload.velocity, payload.channel)
        case .noteOff(let payload):
            print("NoteOff:", payload.note, payload.velocity, payload.channel)
        case .cc(let payload):
            print("CC:", payload.controller, payload.value, payload.channel)
        case .programChange(let payload):
            print("PrgCh:", payload.program, payload.channel)
            
        // etc...

        default:
            break
        }
    }
}