Class OpenAIFunctionsAgentOutputParser

Example

const prompt = ChatPromptTemplate.fromMessages([
  ["ai", "You are a helpful assistant"],
  ["human", "{input}"],
  new MessagesPlaceholder("agent_scratchpad"),
]);

const modelWithFunctions = new ChatOpenAI({
  modelName: "gpt-4",
  temperature: 0,
}).bind({
  functions: tools.map((tool) => formatToOpenAIFunction(tool)),
});

const runnableAgent = RunnableSequence.from([
  {
    input: (i) => i.input,
    agent_scratchpad: (i) => formatAgentSteps(i.steps),
  },
  prompt,
  modelWithFunctions,
  new OpenAIFunctionsAgentOutputParser(),
]);

const result = await runnableAgent.invoke({
  input: "What is the weather in New York?",
  steps: agentSteps,
});

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