Blake3.put: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend as Blake3
Lines 50-54 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend&start_line=50&end_line=54

import Base

def put(xs: List<&2,U32>, i: Nat, +v: U32) -> List<&2,U32>:
  match xs i:
    case Nil{} _: Nil{}
    case Con{x,r} 0n: Con{v,r}
    case Con{x,r} 1n+j: Con{x,put(r,j,v)}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32