Chacha20.when: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/crypto/chacha/chacha20.bend as Chacha20
Lines 140-143 of bend-collections-laws-crypto@1.0.0.0/src/crypto/chacha/chacha20.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/chacha/chacha20.bend&start_line=140&end_line=143

import Base

def when(ok: Bool, x: List<&2, U32>) -> Maybe<&2, List<&2, U32>>:
  match ok:
    case True{}: Some{x}
    case False{}: None{}

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32