CheckRelationProjection.matched: def of bendvy-ecs-core@0.1.0.4
Import: import bendvy-ecs-core@0.1.0.4/check_relation_projection.bend as CheckRelationProjection
Lines 25-27 of bendvy-ecs-core@0.1.0.4/check_relation_projection.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.4/check_relation_projection.bend&start_line=25&end_line=27

import Base
import check.bend as K
import world.bend as W
import relation_types.bend as G
import relation_commands.bend as A
import relation_query.bend as RQ

def matched(~S:Data,~C:Type,~R:Type,~E:Data,~spec:RQ.Spec<S>,target:W.Handle<S>,observed:K.Frame<S,A.Store<S,C>,R,A.Notice<S,E>> & G.Graph<S>) -> K.Frame<S,A.Store<S,C>,R,A.Notice<S,E>> & Bool:
  (frame,graph)=observed
  (frame,accepted(~S,RQ.spec_rows(~S,~Unit,spec,graph,target,Unit{})))

Uses (12):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=Unit
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/check.bend&name=Frame
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/check_relation_projection.bend&name=accepted
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/relation_commands.bend&name=Notice
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/relation_commands.bend&name=Store
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/relation_query.bend&name=Spec
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/relation_query.bend&name=spec_rows
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/relation_types.bend&name=Graph
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=Handle