/// <reference types="react" />
import type { SegmentCountry } from '../../../types/index.js';
export declare function useListHeaderToolbarState(segmentCountries?: SegmentCountry[]): {
    isColumnPickerVisible: boolean;
    setIsColumnPickerVisible: import("react").Dispatch<import("react").SetStateAction<boolean>>;
    timezoneCountryCodes: string[];
};