import { Observable } from 'rxjs';
import { Question } from './quml-library-interface';
export declare abstract class QuestionCursor {
    abstract getQuestions(identifiers: string[], parentId?: string): Observable<Question>;
    abstract getQuestion(identifier: string): Observable<Question>;
    abstract getQuestionSet(identifier: string): Observable<any>;
    abstract getAllQuestionSet(identifiers: string[]): Observable<any>;
}