export type MiddlewareHandler<TContext> = (context: TContext, next: () => Promise<Response>) => Response | Promise<Response>;
/**
 * Runs an onion middleware chain and invokes the terminal handler when the chain completes.
 */
export declare function runMiddlewareChain<TContext>(middleware: readonly MiddlewareHandler<TContext>[], context: TContext, terminal: () => Promise<Response>): Promise<Response>;