import { IQuestion, ItemValue, QuestionRadiogroupModel } from 'survey-core';
import { SurveyPDF } from '../survey';
import { IRect, DocController } from '../doc_controller';
import { IPdfBrick } from '../pdf_render/pdf_brick';
import { FlatSelectBase } from './flat_selectbase';
export declare class FlatRadiogroup extends FlatSelectBase {
    protected survey: SurveyPDF;
    protected controller: DocController;
    protected question: QuestionRadiogroupModel;
    private radioGroupWrap;
    constructor(survey: SurveyPDF, question: IQuestion, controller: DocController);
    protected isItemSelected(item: ItemValue, checked?: boolean): boolean;
    generateFlatItem(rect: IRect, item: ItemValue, index: number, key?: string, checked?: boolean, context?: any): IPdfBrick;
}