/**
 * DiffClassifier — hunk parsing and change classification.
 */
import type { DiffAnalysis, DiffClassification, DiffClassifierConfig, DiffHunk, FileDiff } from './diff-classifier-types.js';
export declare class DiffClassifier {
    private config;
    private classificationCache;
    private static readonly MAX_CLASSIFICATION_CACHE;
    constructor(config?: Partial<DiffClassifierConfig>);
    initialize(): Promise<void>;
    parseDiff(diffContent: string): FileDiff[];
    classify(files: FileDiff[]): DiffAnalysis;
    classifyCommitMessage(message: string): DiffClassification['primary'];
    getStats(): Record<string, number | boolean>;
    clearCache(): void;
    private parseHunks;
    private parseChanges;
    classifyFile(path: string, hunks: DiffHunk[]): DiffClassification;
    private getCacheKey;
    private determinePrimaryClassification;
    private isRefactoring;
    private determineSecondaryClassifications;
    private calculateConfidence;
    private determineImpactLevel;
    private suggestReviewers;
    private determineTestingStrategy;
    private identifyRiskFactors;
    computeOverallClassification(files: FileDiff[]): DiffClassification;
}
export declare function createDiffClassifier(config?: Partial<DiffClassifierConfig>): DiffClassifier;
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