import { PktInputElement } from '../../base-elements/input-element';
import { Ref } from 'lit/directives/ref.js';
import { ElementProps } from '../../types/typeUtils';
type Props = ElementProps<PktRadioButton, 'checkHelptext' | 'defaultChecked' | 'hasTile' | 'tagText' | 'optionalTag' | 'optionalText' | 'requiredTag' | 'requiredText'>;
export declare class PktRadioButton extends PktInputElement<Props> {
    inputRef: Ref<HTMLInputElement>;
    value: string;
    checkHelptext: string | null;
    defaultChecked: boolean;
    hasTile: boolean;
    checked: boolean | string | null;
    type: string;
    tagText: string | null;
    optionalTag: boolean;
    optionalText: string;
    requiredTag: boolean;
    requiredText: string;
    _checked: boolean;
    connectedCallback(): void;
    attributeChangedCallback(name: string, _old: string | null, value: string | null): void;
    render(): import('lit-html').TemplateResult<1>;
    private toggleChecked;
}
export {};