How To use CIDetector

Any one know how to make this code and return result to B4I

Code:

  CIImage *imggo = //source image
    NSDictionary *options = @{CIDetectorAccuracy: CIDetectorAccuracyHigh, CIDetectorAspectRatio: @(1.0)};
    CIDetector *rectangleDetector = [CIDetector detectorOfType:CIDetectorTypeRectangle context:nil options:options];

    NSArray *rectangleFeatures = [rectangleDetector featuresInImage:imggo];

    for (CIRectangleFeature *rectangleFeature in rectangleFeatures) {
        CGPoint...  

How To use CIDetector

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