/**
 * Comparison utilities for protein hashes
 */
import { ProteinHashResult } from './protein-hasher';
import { HashComparison } from './types';
/**
 * Compare two protein hashes and return detailed comparison
 */
export declare function compareHashes(hash1: ProteinHashResult, hash2: ProteinHashResult): HashComparison;
/**
 * Check if two code snippets are semantically equivalent
 */
export declare function isSemanticallyEquivalent(code1: string, code2: string): boolean;
/**
 * Compute similarity score between two code snippets
 */
export declare function computeSimilarity(code1: string, code2: string): number;
/**
 * Group code snippets by semantic similarity
 */
export declare function groupBySimilarity(codes: string[], threshold?: number): string[][];
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