type Tick
import bendvy-ecs-core@0.1.0.3/change_tick.bend as ChangeTickimport Base
3# Logical change timestamp. low wraps modulo 2^32; epoch preserves the history
4# needed to age dormant components/readers across low wraps within runtime limits.
5# Raw constructors are trusted: execution must not supply future stamps/cursors.
6type Tick is Data:
7 Tick{epoch:Nat,low:U32}