import { ValidationOptions } from '../ValidationOptions';
export declare const IS_FIREBASE_PUSH_ID = "IsFirebasePushId";
/**
 * Checks if the string is a Firebase Push Id
 * If given value is not a Firebase Push Id, it returns false
 */
export declare function isFirebasePushId(value: unknown): boolean;
/**
 * Checks if the string is a Firebase Push Id
 * If given value is not a Firebase Push Id, it returns false
 */
export declare function IsFirebasePushId(validationOptions?: ValidationOptions): PropertyDecorator;