def nat.duplicate
import mylsm-lsm-store@0.6.0.1/src/coordinator/CursorCodec.bend as CursorCodecimport Base
22def nat.duplicate(value: Nat) -> Nat & Nat:
23 match value:
24 case 0n: (0n, 0n)
25 case 1n+rest: nat.duplicate.step(nat.duplicate(rest))