import { ChatOpenAI } from "langchain/chat_models/openai"
import { PromptTemplate } from "langchain/prompts";

const openAIApiKey = process.env.OPENAI_API_KEY

const llm = new ChatOpenAI({ openAIApiKey })

const tweetTemplate = 'Generate a promotional tweet for a product, from this product description: {productDesc}'

const tweetPrompt = PromptTemplate.fromTemplate(tweetTemplate)

console.log(tweetPrompt)

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

import { PromptTemplate } from "langchain/prompts";

const openAIApiKey = process.env.OPENAI_API_KEY

const llm = new ChatOpenAI({ openAIApiKey })

const tweetTemplate = 'Generate a promotional tweet for a product, from this product description:

{productDesc}'

const tweetPrompt = PromptTemplate.fromTemplate(tweetTemplate)

console.log(tweetPrompt)

›

{lc:

, type:

"constructor"

, id:

[

"langchain"

"prompts"

"prompt"

"PromptTemplate"

]

, kwargs:

{input_variables:

[

"productDesc"

]

, template_format:

"f-string"

, template:

"Generate a promotional tweet for a product, from this product description: {productDesc}"

, partial_variables:

undefined

}

-3:06