+ list_filter = [
+ "language",
+ "based_on__language",
+ ("pd_year", RangeNumericFilter),
+ "collections",
+ "collections__category",
+ "epochs", "kinds", "genres",
+ "priority",
+ "authors__gender", "authors__nationality",
+ "translators__gender", "translators__nationality",
+ "document_book__chunk__stage",
+ "document_book__chunk__user",
+ ]