{%- 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\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\n<tool_call>\n{\"name\": <function-name>, \"arguments\": <args-json-object>}\n</tool_call><|im_end|>\n" }}
{%- else %}
    {%- if messages[0].role == 'system' %}
        {{- '<|im_start|>system\n' + messages[0].content + '<|im_end|>\n' }}
    {%- endif %}
{%- endif %}
{%- set ns = namespace(multi_step_tool_call=false, last_query_index=messages|length - 1) %}
{%- for message in messages[::-1] %}
    {%- if message.role == 'user' and not ns.multi_step_tool_call %}
        {%- set ns.last_query_index = loop.revindex0 %}
        {%- break %}
    {%- elif message.role == 'assistant' and message.tool_calls %}
        {%- set ns.multi_step_tool_call = true %}
    {%- endif %}
{%- endfor %}
{%- for message in messages %}
    {%- if (message.role == 'user') or (message.role == 'system' and not loop.first) %}
        {{- '<|im_start|>' + message.role + '\n' + message.content + '<|im_end|>' + '\n' }}
    {%- elif message.role == 'assistant' %}
        {%- set content = message.content %}
        {%- set reasoning_content = '' %}
        {%- if message.reasoning_content is defined and message.reasoning_content %}
            {%- set reasoning_content = message.reasoning_content %}
        {%- elif content and content | length > 0 and loop.index0 < ns.last_query_index %}
            {%- if '</think>' in content %}
                {%- set reasoning_content = (content | regex_search('<think>(.*?)</think>', multiline=true, dotall=true) or [''])[0] %}
                {%- set content = content | regex_replace('<think>.*?</think>', '', multiline=true, dotall=true) | trim %}
            {%- endif %}
        {%- endif %}
        {%- if loop.index0 < ns.last_query_index %}
            {%- if reasoning_content %}
                {{- '<|im_start|>assistant\n<think>\n' + reasoning_content.strip('\n') + '\n</think>\n\n' + content.lstrip('\n') + '<|im_end|>\n' }}
            {%- else %}
                {{- '<|im_start|>assistant\n<think>\n\n</think>\n\n' + content.lstrip('\n') + '<|im_end|>\n' }}
            {%- endif %}
        {%- else %}
            {%- if reasoning_content %}
                {{- '<|im_start|>assistant\n<think>\n' + reasoning_content.strip('\n') + '\n</think>\n\n' + content.lstrip('\n') + '<|im_end|>\n' }}
            {%- elif message.tool_calls %}
                {{- '<|im_start|>assistant\n' }}
                {%- for tool_call in message.tool_calls %}
                    {%- if tool_call.function is defined %}
                        {%- 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>' }}
                    {%- if not loop.last %}
                        {{- '\n' }}
                    {%- endif %}
                {%- endfor %}
                {{- '<|im_end|>\n' }}
            {%- else %}
                {{- '<|im_start|>assistant\n' + content + '<|im_end|>\n' }}
            {%- endif %}
        {%- endif %}
    {%- elif message.role == 'tool' %}
        {%- if loop.first or messages[loop.index0 - 1].role != 'tool' %}
            {{- '<|im_start|>user\n' }}
        {%- endif %}
        {{- '<tool_response>\n' + message.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 %}