import HashMap from "@ohos:util.HashMap"; import HashSet from "@ohos:util.HashSet"; export class UseCaseGroup { constructor() { this.useCaseSet = new HashSet(); this.isActive = false; } start() { } stop() { } setListener(o12) { this.stateListener = o12; } addUseCase(n12) { this.useCaseSet.add(n12); } contains(m12) { return this.useCaseSet.has(m12); } removeUseCase(l12) { return this.useCaseSet.remove(l12); } clear() { } getIsActive() { return this.isActive; } getCameraIdToUseCaseMap() { let k12 = new HashMap(); return k12; } } 