import { ContentMatcher, MatchResult } from './base.matcher';
export declare class NormalizedMatcher implements ContentMatcher {
    readonly name = "NormalizedMatcher";
    private readonly confidenceThreshold;
    match(searchBlock: string, content: string): MatchResult;
    private normalizeForComparison;
    private findSimilarCandidates;
    private calculateSimilarity;
    private levenshteinDistance;
    private extractOriginalBefore;
    private extractOriginalAfter;
}
