Survival.select_st.take: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/survival.bend as Survival
Lines 1197-1199 of unified-nsga-iii@0.2.2.0/survival.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/survival.bend&start_line=1197&end_line=1199

import Base
import unified-nsga-iii@0.2.2.0/individual.bend as Ind
import unified-nsga-iii@0.2.2.0/normalization.bend as Norm
import unified-nsga-iii@0.2.2.0/rng.bend as Rng
import unified-nsga-iii@0.2.2.0/util.bend as Util

def select_st.take(+pop: List<&2, Ind.Individual>, +target: Nat, state: Norm.State, rng: Rng.State) -> Norm.State & List<&2, Ind.Individual> & Rng.State:
  +n = Util.list_len(Ind.Individual, pop)
  (state, gather(pop, size_lock(List.take(&2, Nat, List.range(n), target), Util.nat_min(target, n), n)), rng)

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.range
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.take
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&name=Individual
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/normalization.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/rng.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/survival.bend&name=gather
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/survival.bend&name=size_lock
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=list_len
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=nat_min