docs: public static void displayTargetsData(
          AnnotationTargetsImpl_Targets annotationTargets,
          PrintWriter writer) {
  
          Util_BidirectionalMap packageData = annotationTargets.getPackageAnnotationData();
          int uniquePackages = packageData.getHolderSet().size();
          int uniquePackageAnnotations = packageData.getHeldSet().size();
  
          Util_BidirectionalMap classData = annotationTargets.getClassAnnotationData();
          int uniqueClasses = classData.getHolderSet().size();
          int uniqueClassAnnotations = classData.getHeldSet().size();
          
          Util_BidirectionalMap fieldData = annotationTargets.getFieldAnnotationData();
          int uniqueClassesWithFieldAnnotations = fieldData.getHolderSet().size();
          int uniqueFieldAnnotations = fieldData.getHeldSet().size();
          
          Util_BidirectionalMap methodData = annotationTargets.getMethodAnnotationData();
          int uniqueClassesWithMethodAnnotations = methodData.getHolderSet().size();
          int uniqueMethodAnnotations = methodData.getHeldSet().size();
  
          writer.println("Targets data:");
  
          writer.println("  Packages with annotations       [ " + Integer.toString(uniquePackages) + " ]");
          writer.println("  Unique packages annotations     [ " + Integer.toString(uniquePackageAnnotations) + " ]");
  
          writer.println("  Classes with class annotations  [ " + Integer.toString(uniqueClasses) + " ]");
          writer.println("  Unique class annotations        [ " + Integer.toString(uniqueClassAnnotations) + " ]");
  
          writer.println("  Classes with field annotations  [ " + Integer.toString(uniqueClassesWithFieldAnnotations) + " ]");
          writer.println("  Unique field annotations        [ " + Integer.toString(uniqueFieldAnnotations) + " ]");
  
          writer.println("  Classes with method annotations [ " + Integer.toString(uniqueClassesWithMethodAnnotations) + " ]");
          writer.println("  Unique method annotations       [ " + Integer.toString(uniqueMethodAnnotations) + " ]");
      }