CheckRelationProjection.relations: 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 47-50 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=47&end_line=50

import Base
import inspector_query_projection.bend as Select
import check.bend as K
import relation_commands.bend as A
import relation_query.bend as RQ

# Closed relation requirement list supports both directions, required/optional,
# presence/absence filters and every declared projection key/order unchanged.
def relations(~S:Data,~C:Type,~R:Type,~E:Data,~spec:RQ.Spec<S>) -> Select.DeclaredSelection<K.Frame<S,A.Store<S,C>,R,A.Notice<S,E>>,S,List<&2,RQ.Cell<S>>>:
  Select.DeclaredSelection{matches(~S,~C,~R,~E,~spec),project(~S,~C,~R,~E,~spec)}

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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=matches
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/check_relation_projection.bend&name=project
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/inspector_query_projection.bend&name=DeclaredSelection
  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=Cell
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/relation_query.bend&name=Spec