Blake2s.checked: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2s.bend as Blake2s
Lines 215-218 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2s.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2s.bend&start_line=215&end_line=218

import Base

def checked(+r: Nat, valid: Bool, a: Array<U32>, ll: Nat) -> Maybe<&1,Array<U32>>:
  match valid:
    case False{}: None{}
    case True{}: Some{digest(hash(r, a, ll))}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2s.bend&name=digest
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2s.bend&name=hash