@NlsSafe
  @NotNull
  public static String getBuilderClassName(@NotNull PsiAnnotation annotation, @NotNull GrTypeDefinition clazz) {
    final String builderClassName = AnnotationUtil.getDeclaredStringAttributeValue(annotation, "builderClassName");
    return builderClassName == null ? clazz.getName() + "Builder" : builderClassName;
  }
@NlsSafe
  @NotNull
  public static String getBuilderClassName(@NotNull PsiAnnotation annotation, @NotNull GrTypeDefinition clazz)