import { type Reducer } from 'redux';
import type { CategoriesState, TopCategoriesState } from '../types/index.js';
export declare const INITIAL_STATE: TopCategoriesState;
export declare const getError: (state: CategoriesState) => import("@farfetch/blackout-client").BlackoutError | null;
export declare const getIsLoading: (state: CategoriesState) => boolean;
export declare const getResult: (state: CategoriesState) => number[] | null;
/**
 * Reducer for top categories state.
 *
 * @param state  - Current redux state.
 * @param action - Action dispatched.
 *
 * @returns New state.
 */
declare const topReducer: Reducer<TopCategoriesState>;
export default topReducer;