```typescript
import { initializeAgentExecutorWithOptions } from "langchain/agents";
import { ChatOpenAI } from "langchain/chat_models/openai";
import { SerpAPI } from "langchain/tools";
import { Calculator } from "langchain/tools/calculator";

const executor = await initializeAgentExecutorWithOptions(
  [new Calculator(), new SerpAPI()],
  new ChatOpenAI({ modelName: "gpt-4-0613", temperature: 0 }),
  {
    agentType: "openai-functions",
    verbose: true,
  }
);

const result = await executor.run("What is the temperature in New York?");
```

```typescript
/*
  {
    "output": "The current temperature in New York is 89°F, but it feels like 92°F. Please be cautious as the heat can lead to dehydration or heat stroke."
  }
*/
```