/**
 * SizeContext for Tabs.
 *
 * Allows Tabs to propagate its `size` prop to child Tab components without
 * requiring each Tab to receive an explicit `size` prop.
 *
 * Usage (in Tabs.tsx):
 * ```tsx
 * import { SizeProvider } from './SizeContext';
 * <SizeProvider value={size}>{children}</SizeProvider>
 * ```
 *
 * Usage (in individual Tab child):
 * ```tsx
 * import { useGroupSize } from '../Tabs/SizeContext';
 * const groupSize = useGroupSize();
 * const resolvedSize = groupSize ?? size ?? 'medium';
 * ```
 */
import React from 'react';
import type { SizeProp } from '../../tokens/size';
/** Context carrying the size propagated from a Tabs parent. */
export declare const SizeContext: React.Context<SizeProp | undefined>;
/** Provider component wrapping Tabs children. */
export declare const SizeProvider: React.Provider<SizeProp | undefined>;
/**
 * Reads the size value propagated by an ancestor Tabs component.
 * Returns `undefined` when the component is not inside a Tabs — callers
 * should fall back to their own `size` prop or `'medium'`.
 */
export declare function useGroupSize(): SizeProp | undefined;
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