import { QuestionType } from './type/question.type';
import { Option } from '../option';
import { SetOptions } from '@schoolbelle/common/object-change-tracker';
import { Survey } from '../survey';
import { OptionDataInterface } from '../option/base/optionData.interface';
import { Subscription } from 'rxjs';
export declare class Question extends QuestionType {
    subscriptions: Subscription[];
    constructor(survey: Survey, question_id: string, question_type?: string);
    getNumbering(): number[];
    getOptions(conditions: any): Option[];
    addOption(oData?: Partial<OptionDataInterface>, setOptions?: SetOptions): Option;
    deleteOptions(conditions: any, setOptions?: SetOptions): void;
    move(pos_n: number, withinRange?: boolean): void;
    getDecendantQuestions(): Question[];
    private getMovableRange;
    private getAncestorQuestion;
    private getDecendentQuestionCnt;
    private refreshOptions;
}