@Contract("null -> null")
  @Nullable
  public static SpecialField findSpecialField(PsiElement accessor) {
    if (!(accessor instanceof PsiMember member)) return null;
    for (SpecialField sf : VALUES) {
      if (sf.isMyAccessor(member)) {
        return sf;
      }
    }
    return null;
  }
@Contract("null -> null")
  @Nullable
  public static SpecialField findSpecialField(PsiElement accessor)