convertMessagesToCompletionsMessageParams

const messages = [
  new HumanMessage("What's the weather like?"),
  new AIMessage("Let me check that for you.")
];

const params = convertMessagesToCompletionsMessageParams({
  messages,
  model: "gpt-4"
});
// Returns:
// [
//   { role: "user", content: "What's the weather like?" },
//   { role: "assistant", content: "Let me check that for you." }
// ]

const messages = [
  new AIMessage({
    content: "",
    tool_calls: [{
      id: "call_123",
      name: "get_weather",
      args: { location: "San Francisco" }
    }]
  })
];

const params = convertMessagesToCompletionsMessageParams({ messages });
// Returns:
// [{
//   role: "assistant",
//   content: "",
//   tool_calls: [{
//     id: "call_123",
//     type: "function",
//     function: { name: "get_weather", arguments: '{"location":"San Francisco"}' }
//   }]
// }]