private void createRemainingTypes(DocumentmanagerConfig config) {
            for (var thisDataType : config.datatype()) {
                int id = thisDataType.id();
                var type = getOrCreateType(id);
                assert(type != null);
            }
        }
One-shot configuration; should be called on a newly constructed manager
document/src/main/java/com/yahoo/document/DocumentTypeManagerConfigurer.java