Tournament.one: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/tournament.bend as Tournament
Lines 154-160 of unified-nsga-iii@0.2.2.0/tournament.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&start_line=154&end_line=160

import Base
import unified-nsga-iii@0.2.2.0/individual.bend as Ind
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 one(+mode: Mode, +pop: List<&2, Ind.Individual>, rng: Rng.State) -> Rng.State & Ind.Individual:
  +n = Util.list_len(Ind.Individual, pop)
  +rng_a = Rng.next_nat(rng, n)
  +ia = Rng.last_nat(rng_a)
  +rng_b = Rng.next_except(rng_a, n, ia)
  +ib = Rng.last_nat(rng_b)
  winner(mode, get_ind(pop, ia), get_ind(pop, ib), rng_b)

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  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/rng.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/rng.bend&name=last_nat
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/rng.bend&name=next_except
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/rng.bend&name=next_nat
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&name=Mode
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&name=get_ind
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&name=winner
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=list_len