public static @Nullable AddAnnotationPsiFix createAddNotNullFix(PsiModifierListOwner owner) {
    NullableNotNullManager manager = NullableNotNullManager.getInstance(owner.getProject());
    return createAddNullableNotNullFix(owner, manager.getDefaultNotNull(), manager.getNullables());
  }
public static @Nullable AddAnnotationPsiFix createAddNotNullFix(PsiModifierListOwner owner)