[
  {
    "role": "system",
    "content": {{ system_message | dump }}
  },
  {% for message in previous_messages %}
    {% for role, content in message %}
      {
        "role": "{{ role }}",
        "content": {{ content | dump }}
      },
    {% endfor %}
  {% endfor %}
  {
    "role": "user",
    "content": {{ question | dump }}
  }
]