export type TwinWorldRuntime = {
    DELTA_TYPE_SUFFIX: typeof import('@volter-ai-dev/twin').DELTA_TYPE_SUFFIX;
    isEgressEventType: typeof import('@volter-ai-dev/twin').isEgressEventType;
    listEvents: typeof import('@volter-ai-dev/twin').listEvents;
    loadWorldConfig: typeof import('@volter-ai-dev/twin').loadWorldConfig;
    worldStateRoot: typeof import('@volter-ai-dev/twin').worldStateRoot;
};
export declare const MISSING_WORLD_TWIN_MESSAGE = "ztrack world adapters (world-annotations / world-source-books) require the optional @volter-ai-dev/twin package. Install it with: npm install -D @volter-ai-dev/twin";
/** Injectable for tests that simulate the peer being unresolvable without actually
 *  uninstalling it (see worldTwinRuntime.test.ts). Production code never overrides this. */
export declare let importTwinModule: () => Promise<typeof import("@volter-ai-dev/twin")>;
export declare function __setImportTwinModuleForTest(fn: typeof importTwinModule): void;
/** Test-only: clears the memoized runtime so a test that simulates the peer being present or
 *  absent doesn't leak its result into an unrelated test (see worldTwinRuntime.test.ts). */
export declare function __resetTwinWorldRuntimeCacheForTest(): void;
/** Load the twin world-event surface, memoized after the first successful call. Throws
 *  MISSING_WORLD_TWIN_MESSAGE (never a raw MODULE_NOT_FOUND) when the optional peer isn't
 *  installed. */
export declare function loadTwinWorldRuntime(): Promise<TwinWorldRuntime>;