curl --request POST \
  --url https://api.notion.com/v1/agents/{agent_id}/chat \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Notion-Version: <notion-version>' \
  --data '
{
  "message": "<string>",
  "thread_id": "<string>",
  "attachments": [
    {
      "file_upload": {
        "id": "<string>"
      },
      "type": "<string>",
      "name": "<string>"
    }
  ]
}
'

{
  "object": "<string>",
  "agent_id": "<string>",
  "thread_id": "<string>",
  "status": "<string>"
}