import { SyntheticEvent } from 'react';
export type TabValue = unknown;
export interface TabsContextValue {
    value: TabValue;
    size: 'default' | 'small';
    onSelect: (event: SyntheticEvent, value: TabValue) => void;
    /** Registers a tab button so the parent can measure the active indicator and drive arrow-key focus. */
    register: (value: TabValue, node: HTMLButtonElement | null) => void;
}
export declare const TabsContext: import('react').Context<TabsContextValue | null>;
export declare const useTabsContext: () => TabsContextValue | null;