export declare const normalize: (vector: number[]) => number;
export declare const dotProduct: (arr1: number[], arr2: number[]) => number;
export declare const normalizedCosineSimilarity: (vector1: number[], norm1: number, vector2: number[], norm2: number) => number;
export declare const splitArray: (input: string[], maxLength: number, maxTokens: number, countTokens: (input: string) => number) => string[][];