def public_key_d
import bend-collections@1.0.0.0/src/crypto/secp256k1/ecdsa.bend as Ecdsaimport Base
168def public_key_d(compressed: Bool, m: Maybe<&2, List<&2, Nat>>) -> Maybe<&2, List<&2, U32>>:
169 match m:
170 case None{}: None{}
171 case Some{d}: Some{pk_of(compressed, public_point(d))}