import { default as React } from 'react';
import { UseTabState } from '.';
export interface ActiveBarOptions {
    activeTab: HTMLElement;
    listRef: React.MutableRefObject<undefined>;
}
export type ActiveBarProps = ActiveBarOptions & Pick<UseTabState, 'orientation'>;
export interface ActiveBarReturn {
    offset?: number;
    orientation?: UseTabState['orientation'];
    size?: number;
}
export declare const ActiveBar: React.FC<ActiveBarProps>;