export type ReadonlyAtom<T> = () => T;
export declare const atom: <T>(initial: T, options?: import("./createAtomFactory").AtomOptions<T>) => import("./createBaseAtom").Atom<T>;
export declare const atomMiddleware: <T>(initial: T, middleware?: import("./createAtomFactory").AtomMiddleware<T>) => import("./createBaseAtom").Atom<T>;
export declare function readonlyAtom<T>(atom: {
    (): T;
}): ReadonlyAtom<T>;