/**
 * General INPUT widget.
 */
import { IDomArgs, Observable } from '../../index';
export interface IInputOptions {
    onInput?: boolean;
    isValid?: Observable<boolean>;
}
/**
 * Creates a input element tied to the given observable. The required options argument allows
 * controlling the behavior, see IInputOptions for details.
 *
 * This is intended for string input elements, with "type" such as text, email, url, password,
 * number, tel.
 *
 * Note that every change to the observable will affect the input element, but not every change to
 * the input element will affect the observable. Specifically, unless `{onInput: true}` is set, the
 * visible content may differ from the observable until the element loses focus or Enter is hit.
 *
 * Example usage:
 * ```
 *    input(obs, {}, {type: 'text', placeholder: 'Your name...'});
 *    input(obs, {isValid: isValidObs}, {type: 'email', placeholder: 'Your email...'});
 *    input(obs, {onInput: true}, {type: 'text'});
 * ```
 */
export declare function input(obs: Observable<string>, options: IInputOptions, ...args: IDomArgs<HTMLInputElement>): HTMLInputElement;