list index out of range error if similarity search gives 0 docs
https://github.com/hwchase17/langchain/blob/276940fd9babf8aec570dd869cc84fbca1c766bf/langchain/vectorstores/milvus.py#L319

I'm using milvus where for my question I'm getting 0 documents and so index out of range error occurs

Error line:
https://github.com/hwchase17/langchain/blob/276940fd9babf8aec570dd869cc84fbca1c766bf/langchain/chains/llm.py#L95