interface AsyncThunkPayload<T, R extends unknown> {
    state: Partial<T>;
    thunkResult?: R;
}
type Listener<T> = (state: T) => void;
declare class Store<T extends object> {
    private value;
    private listeners;
    constructor(initialValue: T);
    get(): Readonly<T>;
    update(newState: Partial<T>): void;
    subscribe(listener: Listener<T>): () => void;
    asyncThunk<R extends unknown>(callback: (state: Readonly<T>) => Promise<AsyncThunkPayload<T, R>>): Promise<R | undefined>;
}
declare function useStoreSelector<T extends object>(store: Store<T>): Readonly<T>;
declare function createStore<T extends object>(initialState: T): {
    get: () => Readonly<T>;
    update: (newState: Partial<T>) => void;
    subscribe: (listener: Listener<T>) => () => void;
    asyncThunk: <R extends unknown>(callback: (state: Readonly<T>) => Promise<AsyncThunkPayload<T, R>>) => Promise<R | undefined>;
    useSelector: <R>(selector: (state: T) => R) => R;
};

export { Store, createStore, useStoreSelector };