Optional memoryOptional config: any[]Use .batch() instead. Will be removed in 0.2.0.
This feature is deprecated and will be removed in the future.
It is not recommended for use.
Call the chain on all inputs in the list
Optional config: anyOptional tags: string[]Use .invoke() instead. Will be removed in 0.2.0.
Run the core logic of this chain and add to output if desired.
Wraps _call and handles memory.
Invoke the chain with the provided input and returns the output.
Input values for the chain run.
Optional config: anyOptional configuration for the Runnable.
Promise that resolves with the output of the chain run.
Return a json-like object representing this chain.
Static deserializeLoad a chain from a json-like object describing it.
Static fromLLMStatic method that creates a VectorDBQAChain instance from a BaseLanguageModel and a vector store. It also accepts optional options to customize the chain.
The BaseLanguageModel instance.
The vector store used for similarity search.
Optional options: Partial<Omit<VectorDBQAChainInput, "vectorstore" | "combineDocumentsChain">>Optional options to customize the chain.
A new instance of VectorDBQAChain.
Generated using TypeDoc
Class that represents a VectorDBQAChain. It extends the
BaseChainclass and implements theVectorDBQAChainInputinterface. It performs a similarity search using a vector store and combines the search results using a specified combine documents chain.Deprecated
Switch to createRetrievalChain Will be removed in 0.2.0