How to play two audio files at once with Swift using AudioKit

I have two short wav audio files that I'm trying to play at the same time. Using AudioKit, I have an AudioEngine(), and I'm assuming I should use a MultiSegmentAudioPlayer() as the output along with the scheduleSegments(). Here is what I have:

class AudioPlayClass : ObservableObject {

var player = MultiSegmentAudioPlayer()
let engine = AudioEngine()

init(){}

    func playFiles(){
    
        self.engine.output = player
        do {
            try AVAudioSession.sharedInstance().setCategory(.playAndRecord, mode: .default, options: .defaultToSpeaker)
            try AVAudioSession.sharedInstance().setActive(true)
            try engine.start()
           guard let url = Bundle.main.url(forResource: note1, withExtension: "wav", subdirectory: instrumentDirectory) else {return}
            guard let url2 = Bundle.main.url(forResource: note2, withExtension: "wav", subdirectory: instrumentDirectory) else {return}
            let audioFile = try AVAudioFile(forReading: url)
            let audioFile2 = try AVAudioFile(forReading: url2)
            let fileSampleRate = audioFile.processingFormat.sampleRate
            let file2SampleRate = audioFile2.processingFormat.sampleRate
            let fileNumberOfSamples = audioFile.length
            let file2NumberOfSamples = audioFile2.length
            let audioFileEndTime = Double(fileNumberOfSamples)/fileSampleRate
            let audioFile2EndTime = Double(file2NumberOfSamples)/file2SampleRate

            let segment1 = segment(audioFile: audioFile,
                                   playbackStartTime: 0.0, fileStartTime: 0, fileEndTime: audioFileEndTime)
            let segment2 = segment(audioFile: audioFile2,
                                       playbackStartTime: 0.0, fileStartTime: 0, fileEndTime: audioFile2EndTime)

            player2.scheduleSegments(audioSegments: [segment1, segment2])
            player2.play()
        } catch {
            print(error.localizedDescription.debugDescription)
        }
    }
}

public struct segment : StreamableAudioSegment {
public var audioFile: AVAudioFile

public var playbackStartTime: TimeInterval

public var fileStartTime: TimeInterval

public var fileEndTime: TimeInterval

public var completionHandler: AVAudioNodeCompletionHandler?

}

I just have a basic understanding of playing audio in Swift and using AudioKit so any feedback would be greatly appreciated. Thanks!

Solved this by creating two separate instances of an AudioEngine(), each with their own respective AudioPlayer(), and loaded and played them immediately one after the other.