langchain

6a3ceaa3 - Support similarity_score_threshold retrieval with Chroma (#5655)

Support similarity_score_threshold retrieval with Chroma (#5655) Fixes https://github.com/hwchase17/langchain/issues/5067 Verified the following code now works correctly: ``` db = Chroma(persist_directory=index_directory(index_name), embedding_function=embeddings) retriever = db.as_retriever(search_type="similarity_score_threshold", search_kwargs={"score_threshold": 0.4}) docs = retriever.get_relevant_documents(query) ```