message: Removed copy protocol confirmance
diff: return self;
  }
  -- (id)copyWithZone:(NSZone *)zone {
  - return [[TFLCategoryMask alloc] initWithWidth:self.width
  - height:self.height
  - mask:self.mask];
  -}
  -
  - (void)dealloc {
  free(self.mask);
  }
  return self;
  }
  -- (id)copyWithZone:(NSZone *)zone {
  - return [[TFLConfidenceMask alloc] initWithWidth:self.width
  - height:self.height
  - mask:self.mask];
  -}
  -
  - (void)dealloc {
  free(self.mask);
  }
  self = [super init];
  if (self) {
  _confidenceMasks = [confidenceMasks copy];
  - _categoryMask = [categoryMask cop];
  + _categoryMask = categoryMask; // Not copying since not an array and all properties are readonly.
  _coloredLabels = [coloredLabels copy];
  }
  return self;
  