/// <reference types="node" />
import { IncomingMessage, ServerResponse } from 'http';
export declare const GRAPHQL_MULTIPART_REQUEST_SPEC_URL: string;
export interface UploadOptions {
    maxFieldSize?: number | undefined;
    maxFileSize?: number | undefined;
    maxFiles?: number | undefined;
}
export interface GraphQLOperation {
    query: string;
    operationName?: null | string | undefined;
    variables?: null | unknown | undefined | any;
}
export type IncomingReq = Partial<IncomingMessage> & {
    body?: string;
    rawBody?: string;
    req?: any;
    pipe?: any;
    unpipe?: any;
    once?: any;
    resume?: any;
};
export declare function processRequest<T = any>(request?: IncomingReq, response?: Partial<ServerResponse>, options?: UploadOptions): Promise<GraphQLOperation | GraphQLOperation[] | T>;