Limbs.conv: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/crypto/secp256k1/limbs.bend as Limbs
Lines 72-76 of bend-collections@1.0.0.0/src/crypto/secp256k1/limbs.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/secp256k1/limbs.bend&start_line=72&end_line=76

import Base

# the schoolbook product without carries: conv(x :: xs, ys) = x ys + 2^16 conv(xs, ys)
def conv(xs: List<&2, Nat>, +ys: List<&2, Nat>) -> List<&2, Nat>:
  match xs:
    case Nil{}: Nil{}
    case x <> xt: add(scal(x, ys), 0n <> conv(xt, ys))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/secp256k1/limbs.bend&name=add
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/secp256k1/limbs.bend&name=scal