Chacha20poly1305.olen: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/aead/chacha20poly1305.bend as Chacha20poly1305
Lines 243-244 of bend-collections-laws-crypto@1.0.0.0/proofs/crypto/aead/chacha20poly1305.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/proofs/crypto/aead/chacha20poly1305.bend&start_line=243&end_line=244

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/chacha20poly1305.bend as R

def olen(+key: List<&2, U32>, +nonce: List<&2, U32>, +aad: List<&2, U32>, +d: List<&2, U32>, short: Bool) -> Maybe<&2, List<&2, U32>>:
  R.open_len(short, key, nonce, aad, d)

Uses (5):
  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
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/chacha20poly1305.bend&name=open_len