import Retell from 'retell-sdk';

const client = new Retell({
  apiKey: 'YOUR_RETELL_API_KEY',
});

const response = await client.chat.createChatCompletion({
  chat_id: 'oBeDLoLOeuAbiuaMFXRtDOLriTJ5tSxD',
  content: 'hi how are you doing?',
});

console.log(response.messages);

{
  "messages": [
    {
      "message_id": "Jabr9TXYYJHfvl6Syypi88rdAHYHmcq6",
      "role": "agent",
      "content": "hi how are you doing?",
      "created_timestamp": 1703302428855
    }
  ]
}