public static @Nullable AddAnnotationPsiFix createAddNullableFix(PsiModifierListOwner owner) {
    NullableNotNullManager manager = NullableNotNullManager.getInstance(owner.getProject());
    return createAddNullableNotNullFix(owner, manager.getDefaultNullable(), manager.getNotNulls());
  }
public static @Nullable AddAnnotationPsiFix createAddNullableFix(PsiModifierListOwner owner)