import { StringFormatType } from '../../utils/index';
import { PatternValidatorBase } from './index';
export declare const VALIDATOR_EMAIL_METADATA_KEY: unique symbol;
export declare function isEmail(errorMessage?: StringFormatType): (target: Record<string, any>, propertyKey: string | symbol, descriptor: TypedPropertyDescriptor<any>) => void;
export declare const PATTERN_EMAIL_UNIVERSAL: RegExp;
export declare class EmailValidator extends PatternValidatorBase {
    constructor(errorMessage?: StringFormatType);
}