import type { BackendFederatedEffectApiModule, BackendFederationIdentityLoadOptions } from './types.js';
/**
 * Load a federated Effect API with mandatory delivery-unit identity
 * validation (MV-G23): the loaded expose's compatibility metadata must match
 * `expected.unitId` + `expected.buildMarker`.
 */
export declare function loadBackendFederatedEffectApi(options: BackendFederationIdentityLoadOptions): Promise<BackendFederatedEffectApiModule>;