import type { EngineClient } from "@nanobpm/urban/runtime";
/**
 * Register the shared `EngineClient` contract as `node:test` cases, prefixed
 * with `label`. `makeEngine` must return a fresh, empty engine each call; the
 * suite closes it after every case.
 */
export declare function runEngineClientContract(label: string, makeEngine: () => Promise<EngineClient>): void;