def select
import bend-collections@1.0.0.0/src/crypto/secp256k1/scalar.bend as Scalarimport Base
import bend-collections@1.0.0.0/src/crypto/secp256k1/limbs.bend as L
120def select(+b: Nat, x: List<&2, Nat>, y: List<&2, Nat>) -> List<&2, Nat>:
121 L.select(b, x, y)