Nhảy tới nội dung

Class: CondenseQuestionChatEngine

CondenseQuestionChatEngine is used in conjunction with a Index (for example VectorStoreIndex). It does two steps on taking a user's chat message: first, it condenses the chat message with the previous chat history into a question with more context. Then, it queries the underlying Index using the new question with context and returns the response. CondenseQuestionChatEngine performs well when the input is primarily questions about the underlying data. It performs less well when the chat messages are not questions about the data, or are very referential to previous context.

Implements

Constructors

constructor

new CondenseQuestionChatEngine(init): CondenseQuestionChatEngine

Parameters

NameType
initObject
init.chatHistoryChatMessage[]
init.condenseMessagePrompt?(__namedParameters: { chatHistory: undefined | string = ""; question: undefined | string = "" }) => string
init.queryEngineBaseQueryEngine
init.serviceContext?ServiceContext

Returns

CondenseQuestionChatEngine

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:38

Properties

chatHistory

chatHistory: ChatHistory

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:34


condenseMessagePrompt

condenseMessagePrompt: (__namedParameters: { chatHistory: undefined | string = ""; question: undefined | string = "" }) => string

Type declaration

▸ («destructured»): string

Parameters
NameTypeDefault value
«destructured»Objectundefined
› chatHistoryundefined | string""
› questionundefined | string""
Returns

string

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:36


llm

llm: LLM

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:35


queryEngine

queryEngine: BaseQueryEngine

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:33

Methods

chat

chat(params): Promise<AsyncIterable<Response>>

Send message along with the class's current chat history to the LLM.

Parameters

NameType
paramsChatEngineParamsStreaming

Returns

Promise<AsyncIterable<Response>>

Implementation of

ChatEngine.chat

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:64

chat(params): Promise<Response>

Parameters

NameType
paramsChatEngineParamsNonStreaming

Returns

Promise<Response>

Implementation of

ChatEngine.chat

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:65


condenseQuestion

condenseQuestion(chatHistory, question): Promise<CompletionResponse>

Parameters

NameType
chatHistoryChatHistory
questionstring

Returns

Promise<CompletionResponse>

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:51


reset

reset(): void

Resets the chat history so that it's empty.

Returns

void

Implementation of

ChatEngine.reset

Defined in

packages/core/src/engines/chat/CondenseQuestionChatEngine.ts:101