import { LitElement } from 'lit';
import { InternalsAttachedInterface } from './internals-attached.js';
export declare class FormAssociatedInterface {
    form: HTMLFormElement | null;
    labels: NodeList;
    name: string | null;
    disabled: boolean;
    validity: ValidityState;
    validationMessage: string;
    willValidate: boolean;
    formDisabledCallback(disabled: boolean): void;
    checkValidity(): boolean;
    reportValidity(): boolean;
}
export declare const FormAssociated: <T extends Constructor<LitElement & InternalsAttachedInterface>>(superClass: T) => Constructor<FormAssociatedInterface> & T;