Request.swift

let request = VNCoreMLRequest(model: model) { [weak self] (request, error) in
    guard let results = request.results as? [VNClassificationObservation],
    let topResult = results.first else {
          fatalError("Result not in correct format")
    }

    DispatchQueue.main.async {[weak self] in
          self?.predictionLabel.text = "\(topResult.confidence * 100)%
chance to be \(topResult.identifier)"
    }
 }