export type DecisionState = 'DECIDED';
export type TaskState = 'TODO' | 'DONE';
export type DecisionType = 'DECISION';
export type TaskType = 'TASK';
export interface ObjectKey {
    containerAri?: string;
    localId: string;
    objectAri: string;
}
export interface BaseItem<S> extends ObjectKey {
    lastUpdateDate: Date;
    state: S;
    type: DecisionType | TaskType;
}
export type Handler = (state: TaskState | DecisionState) => void;
export type RecentUpdatesId = string;
export interface RecentUpdateContext {
    localId?: string;
    objectAri: string;
}
export interface TaskDecisionProvider {
    notifyRecentUpdates(updateContext: RecentUpdateContext): void;
    subscribe(objectKey: ObjectKey, handler: Handler, item?: BaseItem<TaskState | DecisionState>): void;
    toggleTask(objectKey: ObjectKey, state: TaskState): Promise<TaskState>;
    unsubscribe(objectKey: ObjectKey, handler: Handler): void;
    unsubscribeRecentUpdates(id: RecentUpdatesId): void;
}