import { type ResultValue } from "../runtime/result.js";
/**
 * Backs `std::embedding`'s `embed` and `embedMany`. Calls the active client's
 * embed() method, records cost and tokens, emits an `embedCompletion`
 * statelog event, enforces guards, and returns one vector per input.
 */
export declare function _embedTexts(texts: string[], model: string, provider: string, dimensions: number, apiKey: string, baseUrl: string): Promise<ResultValue>;
/** Backs `std::embedding.cosineSimilarity`. Pure arithmetic, no runtime context. */
export declare function _cosineSimilarity(a: number[], b: number[]): ResultValue;