/**
 * FilesService mocking utilities for service tests
 * Provides simplified mocks for src/services/files module used in service testing
 */
/**
 * Creates a standard FilesService mock for service tests
 * This matches the pattern used in CollectionsService tests
 *
 * @returns Mock module object for vi.mock()
 *
 * @example
 * ```typescript
 * // Standard usage
 * vi.mock('./files.js', async () => {
 *   const { mockFilesService } = await import('../test-utils/services/files-service.js');
 *   return mockFilesService();
 * });
 *
 * // To dynamically change FilesService behavior during tests:
 * import { FilesService } from './files.js';
 * vi.spyOn(FilesService.prototype, 'addColumnToTable').mockImplementation((table, collection, field) => {
 *   // custom implementation
 * });
 * ```
 */
export declare function mockFilesService(): {
    FilesService: import("vitest").Mock<(...args: any[]) => any>;
};