import validatorJs from 'validator';
import { SyncValidation } from '../../types.js';
/**
 * Shape of compiled options
 */
type CompiledOptions = {
    sanitizationOptions: {
        normalizeProtocol?: boolean;
        stripWWW?: boolean;
    };
    validationOptions: validatorJs.IsURLOptions;
};
/**
 * Validation signature for the "email" regex. Non-string values are
 * ignored.
 */
export declare const url: SyncValidation<CompiledOptions>;
export {};