/// <reference types="node" />
import { ValidationOptions } from "class-validator";
interface IsFileOptions {
    mime: ("image/jpg" | "image/png" | "image/jpeg")[];
}
export declare function IsFile(options: IsFileOptions, validationOptions?: ValidationOptions): (object: Object, propertyName: string) => void;
export declare class File {
    fieldname: string;
    originalname: string;
    encoding: string;
    mimetype: string;
    buffer: Buffer;
    size: number;
}
export {};