{%- if messages[0]['role'] == 'system' -%}
    {%- set system_message = messages[0]['content'] | trim -%}
    {%- set messages = messages[1:] -%}
{%- else -%}
    {%- set system_message = '' -%}
{%- endif -%}

{%- if tools is not none -%}
    {{- '<|begin_of_text|><|start_header_id|>system<|end_header_id|>' + '\n\n' + system_message -}}
    {{- '\n\n' if system_message else '' -}}
    {{- '<AVAILABLE_TOOLS>[' -}}
    {% for t in tools %}
        {{- (t.function if t.function is defined else t) | tojson() -}}
        {{- ', ' if not loop.last else '' -}}
    {%- endfor -%}
    {{- ']</AVAILABLE_TOOLS>' -}}
    {{- '<|eot_id|>' -}}
{%- else -%}
    {{- '<|begin_of_text|><|start_header_id|>system<|end_header_id|>' + '\n\n' + system_message + '<|eot_id|>' -}}
{%- endif -%}

{%- for message in messages -%}
    {%- if (message['role'] in ['user', 'tool']) != (loop.index0 % 2 == 0) -%}
        {{- raise_exception('Conversation roles must alternate between user/tool and assistant') -}}
    {%- elif message['role'] == 'user' -%}
        {{- '<|start_header_id|>user<|end_header_id|>' + '\n\n' + message['content'] | trim + '<|eot_id|>' -}}
    {%- elif message['role'] == 'tool' -%}
        {%- set tool_response = '<TOOL_RESPONSE>[' + message['content'] | trim + ']</TOOL_RESPONSE>' -%}
        {{- '<|start_header_id|>user<|end_header_id|>' + '\n\n' + tool_response + '<|eot_id|>' -}}
    {%- elif message['role'] == 'assistant' and message.get('tool_calls') is not none -%}
        {%- set tool_calls = message['tool_calls'] -%}
        {% generation %}
        {{- '<|start_header_id|>assistant<|end_header_id|>' + '\n\n' + '<TOOLCALL>[' -}}
        {%- for tool_call in tool_calls -%}
            {{ '{' + '"name": "' + tool_call.function.name + '", "arguments": ' + tool_call.function.arguments | tojson + '}' }}
            {%- if not loop.last -%}
                {{ ', ' }}
            {%- else -%}
                {{ ']</TOOLCALL>' + '<|eot_id|>' }}
            {%- endif -%}
        {%- endfor -%}
        {% endgeneration %}
    {%- elif message['role'] == 'assistant' -%}
        {% generation %}
        {{- '<|start_header_id|>assistant<|end_header_id|>' + '\n\n' + message['content'] | trim + '<|eot_id|>' -}}
        {% endgeneration %}
    {%- endif -%}
{%- endfor -%}

{%- if add_generation_prompt -%}
    {% generation %}
    {{ '<|start_header_id|>assistant<|end_header_id|>' + '\n\n' }}
    {% endgeneration %}
{%- endif -%}