static void deleteConcepts(L conceptsOrIDs) {
db_mainConcepts().deleteConcepts(conceptsOrIDs);
}
static L nuLike deleteConcepts(Class c, O... params) {
ret deleteConcepts(db_mainConcepts(), c, params);
}
static L deleteConcepts(Concepts cc, Class c, O... params) {
L l = asList(findConceptsWhere(cc, c, params));
deleteConcepts(l);
ret l;
}