import * as React from "react";
import { IOWidget, Options } from "../shared/widget";
export declare type CheckboxOptions<a> = Options & {
    selected_value: a;
    unselected_value: a;
};
export interface CheckboxProps<a> {
    options: CheckboxOptions<a>;
    input: a;
    on_done: (output: a) => void;
}
export interface CheckboxState<a> {
}
export declare class Checkbox<a> extends React.Component<CheckboxProps<a>, CheckboxState<a>> {
    constructor(props: CheckboxProps<a>, context: any);
    render(): JSX.Element;
}
export declare let checkbox: <a>(options: CheckboxOptions<a>) => IOWidget<a, a>;
export declare let bool: (options?: Options | undefined) => IOWidget<boolean, boolean>;