@Override
  public @NotNull List<IntentionAction> createExtendSealedClassFixes(@NotNull PsiJavaCodeReferenceElement subclassRef,
                                                                     @NotNull PsiClass parentClass,
                                                                     @NotNull PsiClass subClass) {
    ModCommandAction fix = ImplementOrExtendFix.createFix(subClass, parentClass);
    return fix == null ? List.of() : List.of(fix.asIntention());
  }
@Override
  public @NotNull List<IntentionAction> createExtendSealedClassFixes(@NotNull PsiJavaCodeReferenceElement subclassRef,
                                                                     @NotNull PsiClass parentClass,
                                                                     @NotNull PsiClass subClass)