/**
 * Mocks the @tanstack/react-virtual library for testing environments.
 *
 * This function creates a mock implementation of the useVirtualizer hook from
 * the @tanstack/react-virtual library, which is used for efficiently rendering
 * large lists and grids. The mock returns a simplified version that generates
 * virtual items with deterministic sizes and provides all expected methods.
 *
 * Each virtual item has:
 * - A consistent height (40px)
 * - Index and key properties matching the item's position
 * - Empty implementation of the measureRef function
 *
 * This allows for testing components that use virtualized lists without requiring
 * actual DOM measurements or complex setup.
 *
 * @example
 * // In your jest setup file
 * import { setupTanstackReactVirtual } from '@trackunit/react-test-setup';
 *
 * setupTanstackReactVirtual();
 */
export declare const setupTanstackReactVirtual: () => void;