@Override
  public @NotNull IntentionPreviewInfo generatePreview(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file) {
    PsiClass targetClass = PsiTreeUtil.findSameElementInCopy(myClass, file);
    insertConstructor(project, editor, targetClass, false, calculateConstructors(targetClass));
    return IntentionPreviewInfo.DIFF;
  }
@Override
  public @NotNull IntentionPreviewInfo generatePreview(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file)