def unique_add
import bendvy-ecs-core@0.1.0.4/schedule_provision.bend as ScheduleProvisionimport Base
45def unique_add(~S: Data,present: Bool,+item: Requirement<S>,rest: List<&2,Requirement<S>>) -> List<&2,Requirement<S>>:
46 match present:
47 case True{}: rest
48 case False{}: item <> rest