import { ActionReducer } from '@ngrx/store';
/**
 * Meta Reducer fürs Loggen der Actions. Wird konfiguriert im AppModule:
 * ```ts
 * StoreModule.forRoot({}, { metaReducers: [loggingMetaReducer] }),
 * ```
 */
export declare function loggingMetaReducer(reducer: ActionReducer<unknown>): ActionReducer<unknown>;