{% set sep = '\n\n' -%}
    {% if bos_token is defined %}{{ bos_token }}{% endif -%}
    {%- for m in messages -%}
    {%- if m['role'] == 'system' -%}
    System:
    {{ m['content'] | trim }}{{ sep }}
    {%- elif m['role'] == 'user' -%}
    User:
    {{ m['content'] | trim }}{{ sep }}
    {%- elif m['role'] == 'assistant' -%}
    Assistant:
    {{ m['content'] | trim }}{{ sep }}
    {%- elif m['role'] == 'tool' -%}
    Tool:
    {{ m['content'] | trim }}{{ sep }}
    {%- endif -%}
    {%- endfor -%}
    {%- if add_generation_prompt -%}
    Assistant:
    {%- endif -%}