vectorstores# Classes vectorstores.ElasticsearchStore(index_name, ...) Elasticsearch vector store. Deprecated classes vectorstores.ApproxRetrievalStrategy([...]) vectorstores.BM25RetrievalStrategy([k1, b]) vectorstores.BaseRetrievalStrategy(*args, ...) vectorstores.ExactRetrievalStrategy(*args, ...) vectorstores.SparseRetrievalStrategy([model_id])