def nat.duplicate.step
import mylsm-lsm-store@0.6.0.1/src/coordinator/CursorCodec.bend as CursorCodecimport Base
18def nat.duplicate.step(pair: Nat & Nat) -> Nat & Nat:
19 match pair:
20 case (first, second): (Nat.add(1n, first), Nat.add(1n, second))