import YoonitFacefy

...

let image = UIImage(contentsOfFile: "image path")
let facefy: Facefy = Facefy()

self.facefy.detect(image!) { faceDetected in                                      
    if let faceDetected: FaceDetected = faceDetected {
        
        if let leftEyeOpenProbability = faceDetected.leftEyeOpenProbability {
            print(String(format: "%.2f", leftEyeOpenProbability))
        }
        if let rightEyeOpenProbability = faceDetected.rightEyeOpenProbability {
            print(String(format: "%.2f", rightEyeOpenProbability))
        }
        if let smilingProbability = faceDetected.smilingProbability {
            print(String(format: "%.2f", faceDetected.smilingProbability))
        }
        if let hasHeadEulerAngleX = faceDetected.hasHeadEulerAngleX {
            print(String(format: "%.2f", hasHeadEulerAngleX))
        }
        if let hasHeadEulerAngleY = faceDetected.hasHeadEulerAngleY {
            print(String(format: "%.2f", hasHeadEulerAngleY))
        }                
        if let hasHeadEulerAngleZ = faceDetected.hasHeadEulerAngleZ {
            print(String(format: "%.2f", hasHeadEulerAngleZ))
        }
                    
        if let cgImage = image?.cgImage {                                                        
            
            // Crop the face image from the camera frame.
            let faceImage = UIImage(
                cgImage: cgImage.cropping(to: faceDetected.boundingBox)!
            ).withHorizontallyFlippedOrientation()
        }
    }
} onError: { message in
    print(message)
}