{{- bos_token -}}
{%- if messages[0]['role'] == 'system' -%}
    {%- set loop_messages = messages[1:] -%}
    {%- set system_message = messages[0]['content'] -%}
{%- else -%}
    {%- set loop_messages = messages -%}
    {%- set system_message = false -%}
{%- endif -%}
{%- if system_message -%}
    {{- '<|im_start|>system\n' + system_message + '<|im_end|>\n' -}}
{%- endif -%}
{%- for message in loop_messages -%}
    {%- if message['role'] == 'user' -%}
        {{- '<|im_start|>user\n' + message['content'] + '<|im_end|>\n<|im_start|>assistant\n' -}}
    {%- elif message['role'] == 'assistant' -%}
        {{- message['content'] + '<|im_end|>\n' -}}
    {%- endif -%}
{%- endfor -%}