chat_template.jinja

{%- macro render_value(value) -%}
    {%- if value is string -%}
        {{- value -}}
    {%- else -%}
        {{- value | tojson(ensure_ascii=False) -}}
    {%- endif -%}
{%- endmacro -%}

{%- macro render_content(message_content) -%}
    {%- if message_content is string -%}
        {{- message_content -}}
    {%- elif message_content is iterable -%}
        {%- for part in message_content -%}
            {%- if part is not mapping -%}
                {{- part -}}
            {%- elif part['type'] == 'image' or 'image' in part or 'image_url' in part -%}
                {{- '<|vision_start|><|image_pad|><|vision_end|>' -}}
            {%- elif part['type'] == 'audio' or part['type'] == 'input_audio' or 'audio' in part or 'audio_url' in part or 'input_audio' in part -%}
                {{- '<|mimo_audio_start|><|audio_pad|><|mimo_audio_end|>' -}}
            {%- elif part['type'] == 'video' or 'video' in part or 'video_url' in part -%}
                {{- '<|vision_start|><|video_pad|><|vision_end|>' -}}
            {%- elif 'text' in part -%}
                {{- part['text'] -}}
            {%- endif -%}
        {%- endfor -%}
    {%- endif -%}
{%- endmacro -%}

{%- macro render_tools(tools) -%}
    {{- 'You are provided with the following tools:\n\n<tools>' -}}
    {%- for tool in tools -%}
        {{- '\n' ~ (tool | tojson(ensure_ascii=False)) -}}
    {%- endfor -%}
    {{- '\n</tools>' -}}
{%- endmacro -%}

{%- macro render_tool_calls(tool_calls) -%}
    {%- for tool_call in tool_calls -%}
        {%- if tool_call.function is defined -%}
            {%- set tool_call = tool_call.function -%}
        {%- elif tool_call.custom is defined -%}
            {%- set tool_call = tool_call.custom -%}
        {%- endif -%}
        {{- '<tool_call><function=' ~ tool_call.name ~ '>' -}}
        {%- if tool_call.input is defined and tool_call.input is string -%}
            {{- tool_call.input -}}
        {%- elif tool_call.arguments -%}
            {%- if tool_call.arguments is string -%}
                {{- tool_call.arguments -}}
            {%- else -%}
                {%- for args_name, args_value in tool_call.arguments | items -%}
                    {{- '<parameter=' ~ args_name ~ '>' ~ render_value(args_value) ~ '</parameter>' -}}
                {%- endfor -%}
            {%- endif -%}
        {%- endif -%}
        {{- '</function></tool_call>' -}}
    {%- endfor -%}
{%- endmacro -%}

{%- macro render_assistant_message(message) -%}
    {%- generation -%}
    {%- set content = render_content(message.content) -%}
    {%- set reasoning = message.reasoning_content if message.reasoning_content is string else '' -%}
    {{- '<|im_start|>assistant\n<think>' ~ reasoning ~ '</think>' ~ content -}}
    {%- if message.tool_calls is defined and message.tool_calls is iterable and message.tool_calls | length > 0 -%}
        {{- render_tool_calls(message.tool_calls) -}}
    {%- endif -%}
    {{- '<|im_end|>' -}}
    {%- endgeneration -%}
{%- endmacro -%}

{%- if tools is defined and tools is iterable and tools | length > 0 -%}
    {{- '<|im_start|>system\n' ~ render_tools(tools) ~ '<|im_end|>' -}}
{%- endif -%}

{%- for message in messages -%}
    {%- if message.role == 'assistant' -%}
        {{- render_assistant_message(message) -}}
    {%- else -%}
        {%- set body = render_content(message.content) -%}
        {{- '<|im_start|>' ~ message.role ~ '\n' ~ body -}}
        {%- if message.tools is defined and message.tools is iterable and message.tools | length > 0 -%}
            {%- if body -%}
                {{- '\n\n' -}}
            {%- endif -%}
            {{- render_tools(message.tools) -}}
        {%- endif -%}
        {{- '<|im_end|>' -}}
    {%- endif -%}
{%- endfor -%}

{%- if add_generation_prompt -%}
    {{- '<|im_start|>assistant\n' -}}
    {%- if enable_thinking is false -%}
        {{- '<think></think>' -}}
    {%- endif -%}
{%- endif -%}