def decode_u
import bend-collections@1.0.0.0/src/crypto/secp256k1/point.bend as Pointimport Base
import bend-collections@1.0.0.0/src/crypto/secp256k1/field.bend as F
183def decode_u(+x: List<&2, Nat>, +y: List<&2, Nat>, ok: Bool) -> Maybe<&2, Point>:
184 match ok:
185 case True{}: Some{Point{x, y, F.one()}}
186 case False{}: None{}