import { Validator } from "./Validator";
import { StepValidatorOptions } from "../types";
/**
 * @summary Step Validator
 *
 * @param {string} [message] defaults to {@link DEFAULT_ERROR_MESSAGES#STEP}
 *
 * @class StepValidator
 * @extends Validator
 *
 * @category Validators
 */
export declare class StepValidator extends Validator<StepValidatorOptions> {
    constructor(message?: string);
    /**
     * @summary Validates a model
     *
     * @param {string} value
     * @param {number} step
     * @param {StepValidatorOptions} options
     *
     * @return {string | undefined}
     *
     * @override
     *
     * @see Validator#hasErrors
     */
    hasErrors(value: number | string, options: StepValidatorOptions): string | undefined;
}