import { OnInit } from '@angular/core';
import { FormBuilder, FormGroup } from '@angular/forms';
import { FormElement } from '../../../../simple-forms.types';
import { CheckboxComponent } from '../checkbox.component';
export declare class GroupedCheckboxQuestionComponent extends CheckboxComponent implements OnInit {
    private formBuilder;
    checkboxGroup: FormGroup;
    formGroup: FormGroup;
    elementData: FormElement;
    constructor(formBuilder: FormBuilder);
    ngOnInit(): void;
    getOptions(): {};
    isSelected(value: any): boolean;
}