export interface ContrastMatch {
    sentence: string;
    pattern_name: string;
    match_text: string;
    sentence_count: number;
}
export interface ContrastScoreResult {
    hits: number;
    chars: number;
    rate_per_1k: number;
    matches: ContrastMatch[];
}
export declare function extractContrastMatches(text: string): ContrastMatch[];
export declare function scoreContrast(text: string): ContrastScoreResult;
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