CallbackManager

const prompt = PromptTemplate.fromTemplate("What is the answer to {question}?");

// Example of using LLMChain with OpenAI and a simple prompt
const chain = new LLMChain({
  llm: new ChatOpenAI({ model: "gpt-4o-mini", temperature: 0.9 }),
  prompt,
});

// Running the chain with a single question
const result = await chain.call({
  question: "What is the airspeed velocity of an unladen swallow?",
});
console.log("The answer is:", result);