import { ModelContract } from "../../contracts/model.contract.mjs";

//#region ../ai/src/rag/transforms/multi-query.d.ts
/** Options for {@link multiQuery}. */
type MultiQueryOptions = {
  /** How many alternative phrasings to request. Default 3. */n?: number; /** Include the original query in the returned list. Default true. */
  includeOriginal?: boolean;
};
/**
 * Multi-query expansion (A4) — ask a model for several alternative
 * phrasings of `query`, so retrieval covers vocabulary the original
 * wording missed (synonyms, specificity, rephrasings). Pair the variants
 * with {@link hybridRank} / a vector search and fuse the per-variant hits.
 *
 * Deterministic, dependency-light parsing: the model is asked for one
 * query per line; bullets / numbering are stripped, blanks dropped, and
 * the set is de-duplicated. Returns the original (unless opted out) plus
 * up to `n` variants.
 *
 * @example
 * const queries = await multiQuery(model, "how do I cancel?", { n: 3 });
 * // → ["how do I cancel?", "cancel my subscription", "end my plan", ...]
 */
declare function multiQuery(model: ModelContract, query: string, options?: MultiQueryOptions): Promise<string[]>;
//#endregion
export { MultiQueryOptions, multiQuery };
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