export declare type State<T> = {
    isLoading: boolean;
    response: null | T;
    error: null | string;
};
declare type Action<T> = {
    type: 'FETCHING';
} | {
    type: 'SUCCESS';
    payload: T;
} | {
    type: 'FAILURE';
    payload: string;
};
export declare const reducer: <T>() => (state: State<T>, action: Action<T>) => State<T>;
export declare const initialState: {
    isLoading: boolean;
    error: null;
    response: null;
};
export {};