chat_template.jinja

{% macro render_extra_keys(json_dict, handled_keys) %}

    {%- if json_dict is mapping %}

        {%- for json_key in json_dict if json_key not in handled_keys %}

            {%- if json_dict[json_key] is mapping or (json_dict[json_key] is sequence and json_dict[json_key] is not string) %}

                {{- '\n<' ~ json_key ~ '>' ~ (json_dict[json_key] | tojson | safe) ~ '</' ~ json_key ~ '>' }}

            {%- else %}

                {{-'\n<' ~ json_key ~ '>' ~ (json_dict[json_key] | string) ~ '</' ~ json_key ~ '>' }}

            {%- endif %}

        {%- endfor %}

    {%- endif %}

{% endmacro %}



{%- if messages[0]["role"] == "system" %}

    {%- set system_message = messages[0]["content"] %}

    {%- set loop_messages = messages[1:] %}

{%- else %}

    {%- set loop_messages = messages %}

{%- endif %}



{%- if not tools is defined %}

    {%- set tools = [] %}

{%- endif %}



{%- if system_message is defined %}

    {{- "<|im_start|>system\n" + system_message }}

{%- else %}

    {%- if tools is iterable and tools | length > 0 %}

        {{- "<|im_start|>system\nYou are Qwen, a helpful AI assistant that can interact with a computer to solve tasks." }}

    {%- endif %}

{%- endif %}

{%- if tools is iterable and tools | length > 0 %}

    {{- "\n\n# Tools\n\nYou have access to the following functions:\n\n" }}

    {{- "<tools>" }}

    {%- for tool in tools %}

        {%- if tool.function is defined %}

            {%- set tool = tool.function %}

        {%- endif %}

        {{- "\n<function>\n<name>" ~ tool.name ~ "</name>" }}

        {%- if tool.description is defined %}

            {{- '\n<description>' ~ (tool.description | trim) ~ '</description>' }}

        {%- endif %}

        {{- '\n<parameters>' }}

        {%- if tool.parameters is defined and tool.parameters is mapping and tool.parameters.properties is defined and tool.parameters.properties is mapping %}

            {%- for param_name, param_fields in tool.parameters.properties|items %}

                {{- '\n<parameter>' }}

                {{- '\n<name>' ~ param_name ~ '</name>' }}

                {%- if param_fields.type is defined %}

                    {{- '\n<type>' ~ (param_fields.type | string) ~ '</type>' }}

                {%- endif %}

                {%- if param_fields.description is defined %}

                    {{- '\n<description>' ~ (param_fields.description | trim) ~ '</description>' }}

                {%- endif %}

                {%- set handled_keys = ['name', 'type', 'description'] %}

                {{- render_extra_keys(param_fields, handled_keys) }}

                {{- '\n</parameter>' }}

            {%- endfor %}

        {%- endif %}

        {% set handled_keys = ['type', 'properties'] %}

        {{- render_extra_keys(tool.parameters, handled_keys) }}

        {{- '\n</parameters>' }}

        {%- set handled_keys = ['type', 'name', 'description', 'parameters'] %}

        {{- render_extra_keys(tool, handled_keys) }}

        {{- '\n</function>' }}

    {%- endfor %}

    {{- "\n</tools>" }}

    {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<tool_call>\n<function=example_function_name>\n<parameter=example_parameter_1>\nvalue_1\n</parameter>\n<parameter=example_parameter_2>\nThis is the value for the second parameter\nthat can span\nmultiple lines\n</parameter>\n</function>\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n- Required parameters MUST be specified\n- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n</IMPORTANT>' }}

{%- endif %}

{%- if system_message is defined %}

    {{- '<|im_end|>\n' }}

{%- else %}

    {%- if tools is iterable and tools | length > 0 %}

        {{- '<|im_end|>\n' }}

    {%- endif %}

{%- endif %}

{%- for message in loop_messages %}

    {%- if message.role == "assistant" and message.tool_calls is defined and message.tool_calls is iterable and message.tool_calls | length > 0 %}

        {{- '<|im_start|>' + message.role }}

        {%- if message.content is defined and message.content is string and message.content | trim | length > 0 %}

            {{- '\n' + message.content | trim + '\n' }}

        {%- endif %}

        {%- for tool_call in message.tool_calls %}

            {%- if tool_call.function is defined %}

                {%- set tool_call = tool_call.function %}

            {%- endif %}

            {{- '\n<tool_call>\n<function=' + tool_call.name + '>\n' }}

            {%- if tool_call.arguments is defined %}

                {%- for args_name, args_value in tool_call.arguments|items %}

                    {{- '<parameter=' + args_name + '>\n' }}

                    {%- set args_value = args_value | tojson | safe if args_value is mapping or (args_value is sequence and args_value is not string) else args_value | string %}

                    {{- args_value }}

                    {{- '\n</parameter>\n' }}

                {%- endfor %}

            {%- endif %}

            {{- '</function>\n</tool_call>' }}

        {%- endfor %}

        {{- '<|im_end|>\n' }}

    {%- elif message.role == "user" or message.role == "system" or message.role == "assistant" %}

        {{- '<|im_start|>' + message.role + '\n' + message.content + '<|im_end|>' + '\n' }}

    {%- elif message.role == "tool" %}

        {%- if loop.previtem and loop.previtem.role != "tool" %}

            {{- '<|im_start|>user\n' }}

        {%- endif %}

        {{- '<tool_response>\n' }}

        {{- message.content }}

        {{- '\n</tool_response>\n' }}

        {%- if not loop.last and loop.nextitem.role != "tool" %}

            {{- '<|im_end|>\n' }}

        {%- elif loop.last %}

            {{- '<|im_end|>\n' }}

        {%- endif %}

    {%- else %}

        {{- '<|im_start|>' + message.role + '\n' + message.content + '<|im_end|>\n' }}

    {%- endif %}

{%- endfor %}

{%- if add_generation_prompt %}

    {{- '<|im_start|>assistant\n' }}

{%- endif %}