Field.pow: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/crypto/secp256k1/field.bend as Field
Lines 89-93 of bend-collections@1.0.0.0/src/crypto/secp256k1/field.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/secp256k1/field.bend&start_line=89&end_line=93

import Base

# x is looked at first, so that on an unknown x nothing is unfolded
def pow(x: List<&2, Nat>, bits: List<&2, Nat>, +acc: List<&2, Nat>) -> List<&2, Nat>:
  match x:
    case Nil{}: pow_go(Nil{}, bits, acc)
    case +y <> +t: pow_go(y <> t, bits, acc)

Uses (3):
  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/field.bend&name=pow_go