/**
 * Code Fixer
 *
 * Applies fix suggestions to test files.
 */
import type { FixSuggestion, FixResult } from '../types.js';
export interface FixerOptions {
    backup?: boolean;
    backupDir?: string;
    dryRun?: boolean;
    createPatch?: boolean;
}
/**
 * Apply fix suggestions to files
 */
export declare function applyFixes(suggestions: FixSuggestion[], options?: FixerOptions): Promise<FixResult>;
/**
 * Generate unified diff format
 */
export declare function generateDiff(original: string, modified: string): string;
/**
 * Revert changes from backup
 */
export declare function revertBackup(backupPath: string, originalPath: string): Promise<boolean>;