Perform a VNCoreMLRequest with VNImageRequestHandler

imagerequest.m

    NSDictionary *options_dict = [[NSDictionary alloc] init];
    NSArray *request_array = @[request];
    
    VNImageRequestHandler *handler = [[VNImageRequestHandler alloc] initWithCIImage:self.imageToDetect options:options_dict];
    dispatch_queue_t myCustomQueue;
    myCustomQueue = dispatch_queue_create("com.aname.VNImageRequestHandlerQueue", NULL);
    
    self.resultLabel.text = @"Predicting...";
    dispatch_sync(myCustomQueue, ^{
        [handler performRequests:request_array error:nil];
        
    });