import { Observable } from 'rxjs';
import { CategoryDataInterface } from '../data/category-data.interface';
import { TerraPagerInterface } from '../../../pager/data/terra-pager.interface';
import * as i0 from "@angular/core";
/**
 * @author ziyad.hajj-hassan
 */
export declare abstract class TerraCategoryPickerBaseService {
    /**
     * @description Placeholder for the specific data-retrieval method. In General the specific rest call is given here.
     * @param categoryId
     * @param level
     */
    abstract requestCategoryData(categoryId: string | number, level: number): Observable<TerraPagerInterface<CategoryDataInterface>>;
    abstract requestCategoryDataById(id: number): Observable<TerraPagerInterface<CategoryDataInterface>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<TerraCategoryPickerBaseService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TerraCategoryPickerBaseService>;
}