{{bos_token}}
{%- if tools %}
    {%- set tool_message = 'List of tools: <|tool_list_start|>' + tools|selectattr('type','eq','function')|map(attribute='function')|list|tojson + '<|tool_list_end|>' %}
{%- endif %}

{%- if messages[0]['role'] == 'system' %}
    {%- set system_message = messages[0]['content'] + ('\n' + tool_message if tool_message else '') %}
    {%- set loop_messages = messages[1:] %}
{%- else %}
    {%- set system_message = tool_message if tool_message else none %}
    {%- set loop_messages = messages %}
{%- endif %}

{{- '<|im_start|>system\n' + system_message + '<|im_end|>\n' if system_message }}

{%- for message in loop_messages %}
    {%- set message_content = message['content'] if message['content'] else '' %}
    {{- '<|im_start|>' + message['role'] + '\n' }}

    {%- if message['role'] == 'assistant' and message['tool_calls'] %}
        {{- '<|tool_call_start|>[' }}

        {%- for tool_call_function in message['tool_calls']|selectattr('type','eq','function')|map(attribute='function')|list %}
            {{- tool_call_function['name'] + '(' }}

            {%- for k, v in tool_call_function['arguments'].items() %}
                {{- k + '=' + v|tojson }}

                {%- if not loop.last %}
                    {{- ', ' }}
                {%- endif %}
            {%- endfor %}

            {%- if not loop.last %}
                {{- '), ' }}
            {%- else %}
                {{- ')' }}
            {%- endif %}
        {%- endfor %}

        {{- ']<|tool_call_end|>' }}
    {%- endif %}

    {{- message_content + '<|im_end|>\n' }}
{%- endfor %}

{%- if add_generation_prompt %}
    {{- '<|im_start|>assistant\n' }}
{%- endif %}