/**
 * Simple semantic matching using string similarity
 * For production, this should use embeddings from an AI platform
 */
export declare function calculateSimilarity(str1: string, str2: string): number;
/**
 * Semantic matcher function for intent matching
 * Returns the best match if similarity is above threshold
 */
export declare function semanticMatch(message: string, utterances: string[], threshold?: number): Promise<{
    matched: boolean;
    confidence: number;
    utterance?: string;
}>;
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