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add system message fix

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This commit is contained in:
Henry
2023-07-19 18:30:45 +01:00
parent 59a9651d73
commit 3f7b586170
2 changed files with 58 additions and 26 deletions
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packages/components/nodes/chains/ConversationalRetrievalQAChain/ConversationalRetrievalQAChain.ts
+23 -26
View File
@@ -6,27 +6,13 @@ import { AIMessage, BaseRetriever, HumanMessage } from 'langchain/schema'
import { BaseChatMemory, BufferMemory, ChatMessageHistory } from 'langchain/memory'
import { PromptTemplate } from 'langchain/prompts'
import { ConsoleCallbackHandler, CustomChainHandler } from '../../../src/handler'
const default_qa_template = `Use the following pieces of context to answer the question at the end. If you don't know the answer, just say that you don't know, don't try to make up an answer.
{context}
Question: {question}
Helpful Answer:`
const qa_template = `Use the following pieces of context to answer the question at the end.
{context}
Question: {question}
Helpful Answer:`
const CUSTOM_QUESTION_GENERATOR_CHAIN_PROMPT = `Given the following conversation and a follow up question, rephrase the follow up question to be a standalone question, in its original language. include it in the standalone question.
Chat History:
{chat_history}
Follow Up Input: {question}
Standalone question:`
import {
default_map_reduce_template,
default_qa_template,
qa_template,
map_reduce_template,
CUSTOM_QUESTION_GENERATOR_CHAIN_PROMPT
} from './prompts'
class ConversationalRetrievalQAChain_Chains implements INode {
label: string
@@ -118,16 +104,27 @@ class ConversationalRetrievalQAChain_Chains implements INode {
const obj: any = {
verbose: process.env.DEBUG === 'true' ? true : false,
qaChainOptions: {
type: 'stuff',
prompt: PromptTemplate.fromTemplate(systemMessagePrompt ? `${systemMessagePrompt}\n${qa_template}` : default_qa_template)
},
questionGeneratorChainOptions: {
template: CUSTOM_QUESTION_GENERATOR_CHAIN_PROMPT
}
}
if (returnSourceDocuments) obj.returnSourceDocuments = returnSourceDocuments
if (chainOption) obj.qaChainOptions = { ...obj.qaChainOptions, type: chainOption }
if (chainOption === 'map_reduce') {
obj.qaChainOptions = {
type: 'map_reduce',
combinePrompt: PromptTemplate.fromTemplate(
systemMessagePrompt ? `${systemMessagePrompt}\n${map_reduce_template}` : default_map_reduce_template
)
}
} else if (chainOption === 'refine') {
// TODO: Add custom system message
} else {
obj.qaChainOptions = {
type: 'stuff',
prompt: PromptTemplate.fromTemplate(systemMessagePrompt ? `${systemMessagePrompt}\n${qa_template}` : default_qa_template)
}
}
if (memory) {
memory.inputKey = 'question'
memory.outputKey = 'text'
packages/components/nodes/chains/ConversationalRetrievalQAChain/prompts.ts
+35
View File
@@ -0,0 +1,35 @@
export const default_qa_template = `Use the following pieces of context to answer the question at the end. If you don't know the answer, just say that you don't know, don't try to make up an answer.
{context}
Question: {question}
Helpful Answer:`
export const qa_template = `Use the following pieces of context to answer the question at the end.
{context}
Question: {question}
Helpful Answer:`
export const default_map_reduce_template = `Given the following extracted parts of a long document and a question, create a final answer.
If you don't know the answer, just say that you don't know. Don't try to make up an answer.
{summaries}
Question: {question}
Helpful Answer:`
export const map_reduce_template = `Given the following extracted parts of a long document and a question, create a final answer.
{summaries}
Question: {question}
Helpful Answer:`
export const CUSTOM_QUESTION_GENERATOR_CHAIN_PROMPT = `Given the following conversation and a follow up question, rephrase the follow up question to be a standalone question, in its original language. include it in the standalone question.
Chat History:
{chat_history}
Follow Up Input: {question}
Standalone question:`