Individual.clear_niche: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/individual.bend as Individual
Lines 142-146 of unified-nsga-iii@0.2.2.0/individual.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&start_line=142&end_line=146

import Base

# CV fill does not assign a niche (pymoo merges these after survival).
def clear_niche(ind: Individual) -> Individual:
  match ind:
    case MkIndividual{x, f, g, cv, rnk, nic, ar, pd, ev, lnk}:
      MkIndividual{x, f, g, cv, rnk, 0n, 0n, 0.0, ev, False{}}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&name=Individual