{%- if tools %}
    {{- '<|im_start|>system\n' }}
    {%- if messages[0].role == 'system' %}{{- messages[0].content + '\n\n' }}{%- endif %}
    {{- "# Tools\n\nYou may call one or more functions to assist with the user query.\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>" }}
    {%- for tool in tools %}
        {{- "\n" }}
        {{- tool | tojson }}
    {%- endfor %}
    {{- "\n</tools>\n\nFor each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:\n<tool_call>\n{\"name\": <function-name>, \"arguments\": <args-json-object>}\n</tool_call><|im_end|>\n" }}
{%- else %}
    {%- if messages[0].role == 'system' %}
        {%- if messages[0].content is string %}
            {{- '<|im_start|>system\n' + messages[0].content + '<|im_end|>\n' }}
        {%- else %}
            {%- for content in messages[0].content %}
                {%- if content.type == 'image' or 'image' in content or 'image_url' in content %}
                    {{- '<|im_start|>system\n' +"<|vision_start|><|image_pad|><|vision_end|>"+ '<|im_end|>\n' }}
                {%- elif content.type == 'audio' or 'audio' in content or 'audio_url' in content %}
                    {{- '<|im_start|>system\n' +"<|audio_start|><|audio_pad|><|audio_end|>"+ '<|im_end|>\n' }}
                {%- elif content.type == 'video' or 'video' in content %}
                    {{- '<|im_start|>system\n' +"<|vision_start|><|video_pad|><|vision_end|>"+ '<|im_end|>\n' }}
                {%- elif content.type == 'text' %}
                    {{- '<|im_start|>system\n' +content.text+ '<|im_end|>\n' }}
                {%- endif %}
            {%- endfor %}
        {%- endif %}
    {%- endif %}
{%- endif %}
{%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %}
{%- for message in messages[::-1] %}
    {%- set index = (messages|length - 1) - loop.index0 %}
    {%- if ns.multi_step_tool and message.role == "user" and message.content is string and not(message.content.startswith('<tool_response>') and message.content.endswith('</tool_response>')) %}
        {%- set ns.multi_step_tool = false %}
        {%- set ns.last_query_index = index %}
    {%- endif %}
{%- endfor %}
{%- for message in messages %}
    {%- if message.content is string %}
        {%- set content = message.content %}
    {%- else %}
        {%- set content = namespace(text="") %}
        {%- for mcontent in message.content %}
            {%- if mcontent.type == 'image' or 'image' in mcontent or 'image_url' in mcontent %}
                {%- set content.text = content.text~"<|vision_start|><|image_pad|><|vision_end|>" %}
            {%- elif mcontent.type == 'audio' or 'audio' in mcontent or 'audio_url' in mcontent %}
                {%- set content.text = content.text~"<|audio_start|><|audio_pad|><|audio_end|>" %}
            {%- elif mcontent.type == 'video' or 'video' in mcontent %}
                {%- set content.text = content.text~"<|vision_start|><|video_pad|><|vision_end|>" %}
            {%- elif mcontent.type == 'text' %}
                {%- set content.text = content.text~mcontent.text %}
            {%- endif %}
        {%- endfor %}
        {%- set content = content.text %}
    {%- endif %}
    {%- if (message.role == "user") or (message.role == "system" and not loop.first) %}
        {{- '<|im_start|>' + message.role + '\n' + content + '<|im_end|>' + '\n' }}
    {%- elif message.role == "assistant" %}
        {%- set reasoning_content = "" %}
        {%- if message.reasoning_content is string %}
            {%- set reasoning_content = message.reasoning_content %}
        {%- else %}
            {%- if '</think>' in content %}
            {%- set reasoning_content = content.split('</think>')[0].rstrip('\n').split('<think>')[-1].lstrip('\n') %}
            {%- set content = content.split('</think>')[-1].lstrip('\n') %}
        {%- endif %}
    {%- endif %}
    {%- if loop.index0 > ns.last_query_index %}
        {%- if loop.last or (not loop.last and reasoning_content) %}
            {{- '<|im_start|>' + message.role + '\n<think>\n' + reasoning_content.strip("\n") + '\n</think>\n\n' + content.lstrip('\n') }}
        {%- else %}
            {{- '<|im_start|>' + message.role + '\n' + content }}
        {%- endif %}
    {%- else %}
        {{- '<|im_start|>' + message.role + '\n' + content }}
    {%- endif %}
    {%- if message.tool_calls %}
        {%- for tool_call in message.tool_calls %}
            {%- if (loop.first and content) or (not loop.first) %}{{- '\n' }}{%- endif %}
            {%- if tool_call.function %}
                {%- set tool_call = tool_call.function %}
            {%- endif %}
            {{- '<tool_call>\n{"name": "' }}
            {{- tool_call.name }}
            {{- '", "arguments": ' }}
            {%- if tool_call.arguments is string %}
                {{- tool_call.arguments }}
            {%- else %}
                {{- tool_call.arguments | tojson }}
            {%- endif %}
            {{- '}\n</tool_call>' }}
        {%- endfor %}
    {%- endif %}
    {{- '<|im_end|>\n' }}
    {%- elif message.role == "tool" %}
        {%- if loop.first or (messages[loop.index0 - 1].role != "tool") %}{{- '<|im_start|>user' }}{%- endif %}
        {{- '\n<tool_response>\n' }}
        {{- content }}
        {{- '\n</tool_response>' }}
        {%- if loop.last or (messages[loop.index0 + 1].role != "tool") %}{{- '<|im_end|>\n' }}{%- endif %}
    {%- endif %}
{%- endfor %}
{%- if add_generation_prompt %}
    {{- '<|im_start|>assistant\n' }}
    {%- if enable_thinking is defined and enable_thinking is false %}{{- '<think>\n\n</think>\n\n' }}{%- endif %}
{%- endif %}