export type Subscriber<T> = (data: T) => void;
export declare class PrimitiveState<S> {
    private subscribers;
    private state;
    private initialState;
    constructor(state: S);
    get: () => S;
    set: (newState: S) => void;
    setPartial: (_s: Partial<S>) => void;
    reset: () => void;
    private notifySubscribers;
    subscribe: (callback: Subscriber<S>) => (() => void);
}
//# sourceMappingURL=PrimitiveState.d.ts.map