System.identity: def of bendvy-ecs-core@0.1.0.4
Import: import bendvy-ecs-core@0.1.0.4/system.bend as System
Lines 104-109 of bendvy-ecs-core@0.1.0.4/system.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&start_line=104&end_line=109

import Base
import bendvy-ecs-core@0.1.0.4/world.bend as W

# Instance identity is observed without consuming the registration owner.
# Return Registry and its actual registration ID without consuming the owner.
# IDs must still be validated with namespace/live metadata before execution.
def identity(~S: Data,~C: Type,~R: Type,~E: Data,~Args: Type,~Error: Data,~Output: Type,~runner: W.World<S,C,R,E> -> Args -> Outcome<W.World<S,C,R,E>,Error,Output>,registry: Registry<S,C,R,E,Args,Error,Output,runner>) -> Registry<S,C,R,E,Args,Error,Output,runner> & U32:
  match registry:
    case Registry{namespace,+id,name,access,cursor}: (Registry{namespace,id,name,access,cursor},id)

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=Outcome
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=Registry
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=World