import { AngularFirestore, DocumentChangeAction } from '@angular/fire/firestore';
import { SafetyCategory } from '@digitaldealers/typings';
import { LocalStorageService } from 'angular-2-local-storage';
import { Observable } from 'rxjs';
export declare class CategoryService {
    private _db;
    private _storage;
    private readonly collectionName;
    constructor(_db: AngularFirestore, _storage: LocalStorageService);
    static prepareDictionary(data: DocumentChangeAction<SafetyCategory>[]): SafetyCategory[];
    save(data: string[]): Observable<void>;
    getList(): Observable<SafetyCategory[]>;
    remove(categoryId: string): Observable<void>;
}