Sign.keypair_if: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/crypto/sign.bend as Sign
Lines 23-28 of bend-collections-laws-crypto@1.0.0.0/src/crypto/sign.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/sign.bend&start_line=23&end_line=28

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/ed25519/ed25519.bend as E

def keypair_if(+seed: List<&2, U32>, ok: Bool) -> Maybe<&2, Keypair>:
  match ok:
    case True{}:
      Some{Keypair{seed, E.public_key(seed)}}
    case False{}:
      None{}

Uses (6):
  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/src/crypto/ed25519/ed25519.bend&name=public_key
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/sign.bend&name=Keypair