/**
 * Utility functions for generating cache keys and file hashes
 */
import { PathLike } from 'fs';
export declare class HashUtils {
    /**
     * Calculate SHA-256 hash of a file
     */
    static calculateFileHash(filePath: PathLike): string;
    /**
     * Get a cache key for a file and prompt
     */
    static getCacheKey(fileHash: string, prompt: string): string;
}
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