Hkdf.block_count: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/spec/crypto/hkdf.bend as Hkdf
Lines 33-35 of bend-collections@1.0.0.0/spec/crypto/hkdf.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/spec/crypto/hkdf.bend&start_line=33&end_line=35

import Base

# N = ceil(L/HashLen).
def block_count(+len: Nat) -> Nat:
  Nat.div(Nat.add(len, 31n), hash_len())

Uses (4):
  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
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.div
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/spec/crypto/hkdf.bend&name=hash_len