import { OnDestroy } from '@angular/core';
import { Observable, Subject } from 'rxjs';
import { CrudApi } from '../core/realtime-database/crud-api';
import { Entity } from '../model/entity-model';
import * as i0 from "@angular/core";
export declare class DisplaysEntity<T extends Entity> implements OnDestroy {
    protected apiService: CrudApi<T>;
    set id(value: string | null);
    private idSub;
    set entity(value: T | null);
    private entitySub;
    entity$: Observable<T>;
    id$: Observable<string>;
    protected destroySub: Subject<void>;
    constructor(apiService: CrudApi<T>);
    pluck<K extends keyof T>(key: K): Observable<T[K]>;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DisplaysEntity<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DisplaysEntity<any>, never, never, { "id": "id"; "entity": "entity"; }, {}, never>;
}