import { FormHiddenParams, AttrState, FormItem } from './help';
export declare class FormHidden implements FormItem {
    private config;
    readonly elementRef: HTMLInputElement;
    readonly name: string;
    private readonly value;
    constructor(config: FormHiddenParams);
    reset(): void;
    update(): void;
    getAttr(): AttrState<any>;
    validate(): boolean;
}