/**
 * E2E Test Runner - File Watcher
 *
 * Monitors test directories for changes and triggers re-runs.
 */
export interface WatcherOptions {
    paths: string[];
    patterns: string[];
    debounceMs: number;
    onChange: (changedPath: string) => void;
    onError?: (error: Error) => void;
}
export interface Watcher {
    close(): void;
}
export declare function createWatcher(options: WatcherOptions): Watcher;
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