import React from 'react';
export declare class FormItem<T> {
    component: {
        forceUpdate: () => void;
    };
    key: string;
    label: string;
    value?: T;
    error: string;
    constructor(component: {
        forceUpdate: () => void;
    }, key: string, label: string, value?: T);
    onChange: (value: T) => void;
    setError(error?: string): void;
    render(child: React.ReactElement): JSX.Element;
}
export declare class FormInputItem<T> extends FormItem<T> {
    onInputChange: (change: {
        target: {
            value: T;
        };
    }) => void;
}