Lifecycle.Stamp: type of bendvy-ecs-core@0.1.0.3
Import: import bendvy-ecs-core@0.1.0.3/lifecycle.bend as Lifecycle
Lines 4-7 of bendvy-ecs-core@0.1.0.3/lifecycle.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.3/lifecycle.bend&start_line=4&end_line=7

import Base
import bendvy-ecs-core@0.1.0.3/change_tick.bend as Tick

# Metadata is Data; payload ownership stays in the typed column. Identity is
# the caller's closed typed column lens, never the family's display name.
type Stamp is Data:
  Stamp{added: Maybe<&2,Tick.Tick>,changed: Maybe<&2,Tick.Tick>}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=Tick