public new static PublishedContentType GetModelContentType()
 => PublishedModelUtility.GetModelContentType(ModelItemType, ModelTypeAlias);
 public new static IPublishedContentType GetModelContentType(IPublishedSnapshotAccessor publishedSnapshotAccessor)
 => PublishedModelUtility.GetModelContentType(publishedSnapshotAccessor, ModelItemType, ModelTypeAlias);