import { InjectionToken } from '@angular/core';
import { Observable } from 'rxjs';
import type { Instruction, StorageObject, Criterion, CuiApiContext } from '@cuby-ui/api';
export declare const UTILITY_MODAL_SERVICE_TOKEN: InjectionToken<UtilityModalService<UtilityElement>>;
export interface UtilityModalService<T extends UtilityElement> {
    createUtility(id: string): Observable<StorageObject<T>>;
    changeTitle(utilityId: string, title: string, context?: CuiApiContext): Observable<void>;
    changeDescription?(utilityId: string, shortDescription: string, context?: CuiApiContext): Observable<void>;
    unbindUtility(id: string): Observable<StorageObject<T>>;
    deleteUtility(utility: StorageObject<T>): Observable<void>;
}
export type UtilityElement = Instruction | Criterion;