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{#- ----------‑‑‑ special token variables ‑‑‑---------- -#}
{%- set bos_token = '<|hy_begin▁of▁sentence|>' %}
{%- set pad_token = '<|hy_▁pad▁|>' %}
{%- set user_token = '<|hy_User|>' %}
{%- set assistant_token = '<|hy_Assistant|>' %}
{%- set eos_token = '<|hy_eos|>' %}
{%- set think_begin_token = '<think>' %}
{%- set think_end_token = '</think>' %}
{%- set toolcalls_begin_token = '<tool_calls>' %}
{%- set toolcalls_end_token = '</tool_calls>' %}
{%- set toolcall_begin_token = '<tool_call>' %}
{%- set toolcall_end_token = '</tool_call>' %}
{%- set toolsep_token = '<tool_sep>' %}
{%- set argkey_begin_token = '<arg_key>' %}
{%- set argkey_end_token = '</arg_key>' %}
{%- set argvalue_begin_token = '<arg_value>' %}
{%- set argvalue_end_token = '</arg_value>' %}
{%- set toolresponses_begin_token = '<tool_responses>' %}
{%- set toolresponses_end_token = '</tool_responses>' %}
{%- set toolresponse_begin_token = '<tool_response>' %}
{%- set toolresponse_end_token = '</tool_response>' %}
{%- set reasoning_mode_token = '<|reasoning_mode|>' %}
{#- ----------‑‑‑ hyperparameters variables ‑‑‑---------- -#}
{%- if not add_generation_prompt is defined %}
    {%- set add_generation_prompt = false %}
{%- endif %}
{%- if not interleaved_thinking is defined %}
    {%- set interleaved_thinking = false %}
{%- endif %}
{%- if not tools %}
    {%- set interleaved_thinking = false %}
{%- endif %}
{%- if not is_training is defined %}
    {%- set is_training = false %}
{%- endif %}
{%- if not reasoning_effort is defined or reasoning_effort not in ['high', 'low', 'no_think'] %}
    {%- set reasoning_effort = 'no_think' %}
{%- endif %}

{%- macro visible_text(content) -%}
    {%- if content is string -%}
        {{- content }}
    {%- elif content is iterable and content is not mapping -%}
        {%- for item in content -%}
            {%- if item is mapping and item.type == 'text' -%}
                {{- item.text }}
            {%- elif item is string -%}
                {{- item }}
            {%- endif -%}
        {%- endfor -%}
    {%- elif content is none -%}
        {{- '' }}
    {%- else -%}
        {{- content }}
    {%- endif -%}
{%- endmacro -%}

{%- set ns = namespace(last_user_index=-1) %}
{%- set sp_ns = namespace(system_prompt='', is_first_sp=true) %}
{%- for message in messages %}
    {%- if message['role'] == 'system' %}
        {%- set sp_ns.system_prompt = sp_ns.system_prompt + visible_text(message['content']) %}
    {%- endif %}
    {%- if message['role'] == 'user' %}
        {%- set ns.last_user_index = loop.index0 %}
    {%- endif %}
{%- endfor %}
{%- if reasoning_effort is defined and reasoning_effort is string and reasoning_effort != '' and not tools %}
    {%- set sp_ns.system_prompt = sp_ns.system_prompt + reasoning_mode_token + 'reasoning_effort:' + reasoning_effort %}
{%- endif %}
{{- bos_token }}
{{- sp_ns.system_prompt }}
{%- if tools %}
    {%- if sp_ns.system_prompt != '' %}
        {{- '\n\n# Tools\n\nYou may call one or more functions to assist with the user query.' }}
    {%- else %}
        {{- '# Tools\n\nYou may call one or more functions to assist with the user query.' }}
    {%- endif %}
    {{- '\n\nYou are provided with function signatures within <tools></tools> XML tags:' }}
    {{- '\n<tools>\n' }}
    {%- for tool in tools %}
        {%- if loop.index0 > 0 %}
            {{- '\n' }}
        {%- endif %}
        {{- tool | tojson }}
    {%- endfor %}
    {{- '\n</tools>\n\n' }}
    {{- 'For function call returns, you should first print ' + toolcalls_begin_token + '\n' }}
    {{- 'For each function call, you should return object like:\n' }}
    {{- toolcall_begin_token + '{function-name}' + toolsep_token + '\n' }}
    {{- argkey_begin_token + '{arg-key-1}' + argkey_end_token + '\n' }}
    {{- argvalue_begin_token + '{arg-value-1}' + argvalue_end_token + '\n' }}
    {{- argkey_begin_token + '{arg-key-2}' + argkey_end_token + '\n' }}
    {{- argvalue_begin_token + '{arg-value-2}' + argvalue_end_token + '\n' }}
    {{- '...\n' }}
    {{- toolcall_end_token + '\n' }}
    {%- if reasoning_effort is defined and reasoning_effort is string and reasoning_effort != '' %}
        {{- 'At the end of function call returns, you should print ' + toolcalls_end_token + reasoning_mode_token + 'reasoning_effort:' + reasoning_effort }}
    {%- else %}
        {{- 'At the end of function call returns, you should print ' + toolcalls_end_token }}
    {%- endif %}
{%- endif %}

{%- set prev_ns = namespace(is_tool=false, is_tool_first=true) %}
{%- set last_ns = namespace(last_is_assistant=false) %}
{%- for message in messages %}
    {%- if message['role'] == 'user' %}
        {%- if prev_ns.is_tool %}
            {{- toolresponses_end_token }}
        {%- endif %}
        {{- user_token + visible_text(message['content']) }}
        {%- set prev_ns.is_tool = false %}
    {%- endif %}
    {%- if message['role'] == 'assistant' %}
        {%- if 'reasoning_content' in message and message['reasoning_content'] is string %}
            {%- set rc = message['reasoning_content'] %}
        {%- elif 'reasoning' in message and message['reasoning'] is string %}
            {%- set rc = message['reasoning'] %}
        {%- else %}
            {%- set rc = none %}
        {%- endif %}
        {%- if is_training %}
            {%- if rc is not none %}
                {%- set content = think_begin_token + rc + think_end_token + visible_text(message['content']) %}
            {%- else %}
                {%- set content = think_begin_token + think_end_token + visible_text(message['content']) %}
            {%- endif %}
        {%- else %}
            {%- if interleaved_thinking %}
                {%- if loop.index0 > ns.last_user_index and rc is not none %}
                    {%- set content = think_begin_token + rc + think_end_token + visible_text(message['content']) %}
                {%- else %}
                    {%- set content = think_begin_token + think_end_token + visible_text(message['content']) %}
                {%- endif %}
            {%- else %}
                {%- set content = think_begin_token + think_end_token + visible_text(message['content']) %}
            {%- endif %}
        {%- endif %}
        {%- if prev_ns.is_tool %}
            {{- toolresponses_end_token }}
        {%- endif %}
        {{- assistant_token }}
        {%- if message['tool_calls'] is defined and message['tool_calls'] %}
            {%- set prev_ns.is_tool_first = true %}
            {{- content }}
            {{- toolcalls_begin_token + '\n' }}
            {%- for tool in message['tool_calls'] %}
                {%- set arguments = tool['function']['arguments'] %}
                {{- toolcall_begin_token + tool['function']['name'] + toolsep_token + '\n' }}
                {%- for key, value in arguments.items() %}
                    {{- argkey_begin_token + key + argkey_end_token + '\n' }}
                    {%- if value is not string %}
                        {%- set value = value | tojson(ensure_ascii=False) %}
                    {%- endif %}
                    {{- argvalue_begin_token + value + argvalue_end_token + '\n' }}
                {%- endfor %}
                {{- toolcall_end_token + '\n' }}
            {%- endfor %}
            {{- toolcalls_end_token + eos_token }}
        {%- else %}
            {%- if not loop.last or is_training %}
                {{- content + eos_token }}
            {%- else %}
                {{- content }}
            {%- endif %}
        {%- endif %}
        {%- set prev_ns.is_tool = false %}
    {%- endif %}
    {%- if message['role'] == 'tool' %}
        {%- set prev_ns.is_tool = true %}
        {%- if prev_ns.is_tool_first %}
            {{- toolresponses_begin_token + '\n' }}
            {%- set prev_ns.is_tool_first = false %}
        {%- endif %}
        {{- toolresponse_begin_token + '\n' + visible_text(message['content']) + '\n' + toolresponse_end_token + '\n' }}
    {%- endif %}
    {%- if loop.last and message['role'] == 'assistant' %}
        {%- set last_ns.last_is_assistant = true %}
    {%- endif %}

{%- endfor %}
{%- if prev_ns.is_tool %}
    {{- toolresponses_end_token }}
{%- endif %}
{%- if add_generation_prompt %}
    {%- if not last_ns.last_is_assistant %}
        {%- if reasoning_effort is defined and reasoning_effort in ['low', 'high'] %}
            {{- assistant_token + think_begin_token }}
        {%- elif reasoning_effort is defined and reasoning_effort == 'no_think' %}
            {{- assistant_token + think_begin_token + think_end_token }}
        {%- else %}
            {{- assistant_token }}
        {%- endif %}
    {%- endif %}
{%- endif %}