inRangeAsync function
        
Future<Mat> 
inRangeAsync(
    
- InputArray src,
- InputArray lowerb,
- InputArray upperb, {
- OutputArray? dst,
InRange checks if array elements lie between the elements of two Mat arrays.
For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga48af0ab51e36436c5d04340e036ce981
Implementation
Future<Mat> inRangeAsync(InputArray src, InputArray lowerb, InputArray upperb, {OutputArray? dst}) async {
  dst ??= Mat.empty();
  return cvRunAsync0((callback) => ccore.cv_inRange(src.ref, lowerb.ref, upperb.ref, dst!.ref, callback), (
    c,
  ) {
    return c.complete(dst);
  });
}