import { HttpRequest } from './request.js';
export type Dispatch<T> = (request: HttpRequest) => Promise<T>;
export type Middleware<T, P = Response> = (next: Dispatch<P>) => Dispatch<T>;
export declare function compose(...fns: any[]): any;
/**
 * Compose the list of middleware into a single middleware.
 * @param middlewares List of middleware
 */
export declare function composeMiddleware<T = any>(...middlewares: Array<Middleware<T, any>>): any;
/**
 * This function doesn't really "do anything" at runtime, it's just the identity
 * function. Its only purpose is to defeat TypeScript's type.
 * @param middleware The middleware
 */
export declare function createMiddleware<T, P = Response>(middleware: Middleware<T, P>): Middleware<T, P>;