import { type Props, type Reducer } from './index.types';
/**
 * Wraps the useEnhancedReducer and applies the controlled prop values before
 * returning the new state.
 * @param reducer Reducer function from downshift.
 * @param props The hook props, also passed to createInitialState.
 * @param createInitialState Function that returns the initial state.
 * @param isStateEqual Function that checks if a previous state is equal to the next.
 * @returns An array with the state and an action dispatcher.
 */
export declare function useControlledReducer<S extends object, A extends {
    type: string;
}, P extends Props<S, A>>(reducer: Reducer<S, A>, props: P, createInitialState: (props: P) => S, isStateEqual: (prev: S, next: S) => boolean): [S, (action: A) => void];