type Middleware<T> = (_key: string, _prev: T | undefined, _next: T | Action<T>, _set?: (_value: T) => void) => T | void | Promise<T | void>;
type Options<T> = {
    middleware?: Middleware<T | undefined>[];
    persist?: boolean;
    encrypt?: boolean;
    frameSync?: boolean;
};
type Action<T> = {
    type: string;
    payload?: T;
};
interface StoreHook<T> {
    useState: () => T;
    set: (val: T | ((prev: T) => T) | Action<T>, immediate?: boolean) => Promise<void>;
    get: () => T;
    undo: () => void;
    redo: () => void;
    clear: () => void;
}
declare function useSlice(sliceName: string): <T>(key: string, initialValue: T, options?: Options<T | undefined>) => StoreHook<T>;
declare function useStateGlobal<T>(key: string, initialValue: T, options?: Options<T>): StoreHook<T>;
declare function useStateGlobal<T>(key: string, initialValue?: T, options?: Options<T>): StoreHook<T | undefined>;
declare function useStore<T extends Record<string, unknown>>(initializer: () => T): T;

declare const saveState: <T>(key: string, value: T) => void;
declare const restoreState: <T>(key: string, defaultValue?: T) => any;

declare const optimisticUpdate: <T>(setState: {
    set: (value: T) => void;
    useState: () => T;
}, updateFn: (prevState: T) => T, apiCall: () => Promise<T>, rollbackFn?: (prevState: T) => T) => Promise<void>;

declare const saveEncryptedState: <T>(key: string, value: T) => void;
declare const restoreEncryptedState: <T>(key: string, defaultValue?: T) => unknown;

declare const mergeCRDT: <T>(localState: T, remoteState: T) => T;
declare const syncCRDT: <T>(remoteState: T, getStateValue: () => T, set: (state: T) => void) => void;

declare const derivedState: <T, D extends {
    useState: () => unknown;
}[]>(dependencies: D, computeFn: (...values: { [K in keyof D]: ReturnType<D[K]["useState"]>; }) => T) => () => T;

declare const VERSION = "2.4.0";

export { VERSION, derivedState, mergeCRDT, optimisticUpdate, restoreEncryptedState, restoreState, saveEncryptedState, saveState, syncCRDT, useSlice, useStateGlobal, useStore };