/// <reference types="react" />
import { IChoiceGroupProps } from './ChoiceGroup.types';
import { BaseComponent } from '../../Utilities';
export interface IChoiceGroupState {
    keyChecked: string | number;
    /** Is true when the control has focus. */
    keyFocused?: string | number;
}
export declare class ChoiceGroupBase extends BaseComponent<IChoiceGroupProps, IChoiceGroupState> {
    static defaultProps: IChoiceGroupProps;
    private _id;
    private _labelId;
    private _inputElement;
    private focusedVars;
    private changedVars;
    constructor(props: IChoiceGroupProps);
    componentWillReceiveProps(newProps: IChoiceGroupProps): void;
    render(): JSX.Element;
    focus(): void;
    private _onFocus;
    private _onBlur;
    private _onChange;
    private _getKeyChecked(props);
}