import * as React from "react";
import { IOWidget, Pair } from "../shared/widget";
export interface BothProps<i, o1, o2> {
    input: i;
    widget1: IOWidget<i, o1>;
    widget2: IOWidget<i, o2>;
    on_done_both: (outputs: Pair<o1, o2>) => void;
}
export interface BothState<i, o1, o2> {
    value1: o1 | null;
    value2: o2 | null;
}
export declare class Both<i, o1, o2> extends React.Component<BothProps<i, o1, o2>, BothState<i, o1, o2>> {
    constructor(props: BothProps<i, o1, o2>, context: any);
    render(): JSX.Element;
}
export declare let both: <i, o1, o2>(widget1: IOWidget<i, o1>, widget2: IOWidget<i, o2>) => IOWidget<i, Pair<o1, o2>>;