/**
 * Get the application data directory
 */
export declare function getAppDataDir(): string;
/**
 * Get the cache directory
 */
export declare function getCacheDir(subDir?: string): string;
/**
 * Get the temporary directory
 */
export declare function getTmpDir(subDir?: string): string;
/**
 * Ensure directory exists
 */
export declare function ensureDir(dirPath: string): void;
/**
 * Get narration cache directory
 */
export declare function getNarrationCacheDir(): string;
/**
 * Get generated music cache directory
 */
export declare function getGeneratedMusicCacheDir(): string;
/**
 * Get generated image cache directory
 */
export declare function getGeneratedImageCacheDir(): string;
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