Conformance.mul64: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/proofs/crypto/sha/conformance.bend as Conformance
Lines 605-611 of bend-collections@1.0.0.0/proofs/crypto/sha/conformance.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/proofs/crypto/sha/conformance.bend&start_line=605&end_line=611

import Base

# Byte counts of whole blocks: 64 * k, built the way stream accumulates them.
def mul64(k: Nat) -> Nat:
  match k:
    case 0n:
      0n
    case 1n+p:
      Nat.add(64n, mul64(p))

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add