{%- if messages[0]['role'] == 'system' -%}
    {{- '<|im_start|>system\n' + messages[0]['content'] | trim + '<|im_end|>\n' -}}
    {%- set offset = 1 -%}
{%- else -%}
    {%- set offset = 0 -%}
{%- endif -%}
{%- for message in messages[offset:] -%}
    {{- '<|im_start|>' + message['role'] + '\n' + message['content'] | trim + '<|im_end|>\n' -}}
{%- endfor -%}
{%- if add_generation_prompt -%}
    {{- '<|im_start|>assistant\n' -}}
{%- endif -%}