import type { EmbeddingVector } from '../EmbeddingVector';
/**
 * Computes the cosine similarity between two embedding vectors
 *
 * Note: This is helping function for RAG (retrieval-augmented generation)
 *
 * @param embeddingVector1
 * @param embeddingVector2
 * @returns Cosine similarity between the two vectors
 *
 * @public exported from `@promptbook/core`
 */
export declare function computeCosineSimilarity(embeddingVector1: EmbeddingVector, embeddingVector2: EmbeddingVector): number;
