export default function useDerivedState<S>(fn: () => any, dependencies?: any, { comparator, ...ops }?: {
    comparator?: boolean | ((a: any, b: any) => boolean);
    alwaysMerge?: boolean;
    alwaysUpdate?: boolean;
    comparison?: boolean | ((a: any, b: any) => boolean);
    alwaysImmediate?: boolean;
    alwaysDefer?: boolean;
}): import("./types").StateHookInterface<S>;
export type StateHookInterface = import('./types').StateHookInterface;