def in_ref
import unified-nsga-iii@0.2.2.0/survival.bend as Survivalimport Base
import unified-nsga-iii@0.2.2.0/util.bend as Util
455def in_ref(+asgs: List<&2, Assignment>, +r: Nat, cand: List<&2, Nat>) -> List<&2, Nat>:
456 Util.filter_halves(~Nat, ~RefPick, ~in_ref.ok, RP{asgs, r}, cand)