import { EventEmitter } from 'events';
export declare class FileWatcher extends EventEmitter {
    private watcher;
    private projectDir;
    private fileCache;
    private changeQueue;
    private debounceTimer;
    private ignorePatterns;
    constructor(projectDir: string);
    start(): Promise<void>;
    stop(): void;
    private cacheExistingFiles;
    private shouldIgnore;
    private handleChange;
    private debouncedEmit;
    getFileContent(filePath: string): string | undefined;
}
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