@Nullable
  static PsiClass getSerializablePsiClass(@NotNull PsiElement psiElement) {
    PsiClass psiClass = PsiTreeUtil.getParentOfType(psiElement, PsiClass.class);
    if (psiClass == null) return null;
    return !psiClass.isEnum() && SerializationUtils.isSerializable(psiClass) ? psiClass : null;
  }
@Nullable
  static PsiClass getSerializablePsiClass(@NotNull PsiElement psiElement)