import type { TextValidation } from './types';
import * as yup from 'yup';
/** Value-level rules of `handleValidationSchema` — within length bounds and matching the handle format. */
export declare const isValidHandle: (value: string, lengthValidation?: TextValidation) => boolean;
export declare const handleValidationSchema: (lengthValidation?: TextValidation) => yup.StringSchema<string, yup.AnyObject, undefined, "">;