export declare function usePrevious<T>(value: T, options?: {
    skip?: boolean | ((previous?: T, value?: T) => boolean);
    retain?: boolean;
    returnTuple?: false;
}): T;
export declare function usePrevious<T>(value: T, options?: {
    skip?: boolean | ((previous?: T, value?: T) => boolean);
    retain?: boolean;
    returnTuple: true;
}): [T, {
    changed: boolean;
}];