{%- if messages[0]['role'] == 'system' -%}
    <|im_start|>system
    {{ messages[0]['content'] | trim }}<|im_end|>
    {%- else -%}
    <|im_start|>system
    <|im_end|>
    {%- endif -%}
    {%- for message in messages -%}
    {%- if (message.role == 'user') or (message.role == 'system' and not loop.first) or (message.role == 'assistant') -%}
    <|im_start|>{{ message.role }}
    {%- if message['role'] == 'assistant' %}
    {% generation %}{{ message['content'] | trim }}<|im_end|>{% endgeneration %}
    {%- else %}
    {{ message['content'] | trim }}<|im_end|>
    {%- endif %}
    {%- endif -%}
    {%- endfor -%}
    {%- if add_generation_prompt %}
    <|im_start|>assistant
    {%- endif -%}