Translation Challenge Code

const splitter = RecursiveCharacterTextSplitter({
	chunkSize: 3000,
	seaparators: ['\n\n', '\n', ' ', ''],
	chunkOverlap: 50
})

import { ChatOpenAI } from 'langchain/chat_models/openai'

import { PromptTemplate } from 'langchain/prompts'

import { StringOutputParser } from 'langchain/schema/output_parser'

import { RunnableSequence, RunnablePassthrough } from "langchain/schema/runnable"

  

const openAIApiKey = process.env.OPENAI_API_KEY

const llm = new ChatOpenAI({ openAIApiKey })

  

const punctuationTemplate = `Given a sentence, add punctuation where needed.

sentence: {sentence}

sentence with punctuation:

`

const punctuationPrompt = PromptTemplate.fromTemplate(punctuationTemplate)

  

const grammarTemplate = `Given a sentence correct the grammar.

sentence: {punctuated_sentence}

sentence with correct grammar:

`

const grammarPrompt = PromptTemplate.fromTemplate(grammarTemplate)

  

const translationTemplate = `Given a sentence, translate that sentence into {language}

sentence: {grammatically_correct_sentence}

translated sentence:

`

const translationPrompt = PromptTemplate.fromTemplate(translationTemplate)

  

const punctuationChain = RunnableSequence.from([

punctuationPrompt,

llm,

new StringOutputParser()

])

const grammarChain = RunnableSequence.from([

grammarPrompt,

llm,

new StringOutputParser()

])

const translationChain = RunnableSequence.from([

translationPrompt,

llm,

new StringOutputParser()

])

  

const chain = RunnableSequence.from([

{

punctuated_sentence: punctuationChain,

original_input: new RunnablePassthrough()

},

{

grammatically_correct_sentence: grammarChain,

language: ({ original_input }) => original_input.language

},

translationChain

])

  

const response = await chain.invoke({

sentence: 'i dont liked mondays',

language: 'french'

})

  

console.log(response)