@Nullable
  public static XmlAttributeValue getImplicitIdRefValueElement(@NotNull XmlTag tag) {
    for (ImplicitIdRefProvider idRefProvider : ImplicitIdRefProvider.EXTENSION_POINT_NAME.getExtensionList()) {
      XmlAttribute value = idRefProvider.getIdRefAttribute(tag);
      if (value != null) return value.getValueElement();
    }

    return null;
  }
@Nullable
  public static XmlAttributeValue getImplicitIdRefValueElement(@NotNull XmlTag tag)