import { Observable } from 'rxjs';
import { Actions } from '@ngxs/store';
import { FieldPath, Firestore } from '@angular/fire/firestore';
import { QueryFn } from './utils';
import * as i0 from "@angular/core";
export declare class NgxsFirestorePageIdService {
    private firestore;
    constructor(firestore: Firestore);
    createId(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxsFirestorePageIdService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgxsFirestorePageIdService>;
}
export declare class NgxsFirestorePageService {
    private actions$;
    private pageId;
    constructor(actions$: Actions, pageId: NgxsFirestorePageIdService);
    private actionCompletedHandlerSubjects;
    private attached;
    private handlePageActions;
    create<T>(queryFn: (pageFn: QueryFn<any>) => Observable<T>, size: number, orderBy: {
        fieldPath: string | FieldPath;
        directionStr?: 'desc' | 'asc';
    }[]): Observable<{
        results: T;
        pageId: string;
    }>;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxsFirestorePageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgxsFirestorePageService>;
}