static <A extends Concept> A nuLike conceptWhereIC(Class<A> c, O... params) {
  ret conceptWhereIC(db_mainConcepts(), c, params);
}

static Concept conceptWhereIC(S c, O... params) {
  ret conceptWhereIC(db_mainConcepts(), c, params);
}

static <A extends Concept> A conceptWhereIC(Concepts concepts, Class<A> c, O... params) {
  params = expandParams(c, params);
  ret firstConceptWhereIC(concepts.list(c), params);
}

static Concept conceptWhereIC(Concepts concepts, S c, O... params) {
  ret firstConceptWhereIC(concepts.list(c), params);
}