import { TReferenceProps } from '../../..';
import { IStringProps, TStringValidatorResult } from '../_types';
export interface IIsLengthProps {
    /**
     * Minimum length of the string.
     */
    min?: number;
    /**
     * Delta added to `min` (eg: you have a `min` of `10` and a `minDelta` of `5`, then the minimal length of the string will be `15`). You can also use negative value. This property is useful when you are using refs.
     */
    minDelta?: number;
    /**
     * Whether the minimal value should be accepted.
     *
     * @default true
     */
    minIncluded?: boolean;
    /**
     * Maximum length of the string.
     */
    max?: number;
    /**
     * Delta added to `max` (eg: you have a `max` of `10` and a `maxDelta` of `5`, then the maximal length of the string will be `15`). You can also use negative value. This property is useful when you are using refs.
     */
    maxDelta?: number;
    /**
     * Whether the maximal value should be accepted.
     *
     * @default true
     */
    maxIncluded?: boolean;
}
/**
 * Check if the string corresponds to the length constraints.
 */
export declare const isLength: (props?: TReferenceProps<IIsLengthProps> & IStringProps) => TStringValidatorResult;