Sign.sign: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/crypto/sign.bend as Sign
Lines 58-59 of bend-collections@1.0.0.0/src/crypto/sign.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/sign.bend&start_line=58&end_line=59

import Base
import bend-collections@1.0.0.0/src/crypto/curve25519/x25519.bend as X

def sign(+sk: List<&2, U32>, +msg: List<&2, U32>) -> Maybe<&2, List<&2, U32>>:
  sign_if(sk, msg, X.valid_bytes(32n, sk))

Uses (5):
  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@1.0.0.0/src/crypto/curve25519/x25519.bend&name=valid_bytes
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/sign.bend&name=sign_if