{%- set default_system_message = 'You are AI.' -%}{{ bos_token }}
{%- if messages[0]['role'] == 'system' %}
    {%- set system_message = messages[0]['content'] %}
    {%- set loop_messages = messages[1:] %}
{%- else %}
    {%- set system_message = default_system_message %}
    {%- set loop_messages = messages %}
{%- endif %}
{% if tools is not none and tools|length > 0 %}
    {%- set tool_str = tools|tojson -%}
    {%- set tool_instructions =
          '\nYou can use multiple tools by responding with a JSON array like this: '
          ~ '[{"name": "tool1", "parameters": {"p1": "val1" }}, {"name": "tool2", "parameters": {"p2": "val2", "p3": 23}}] '
          ~ ' Your available tools are: '
          ~ '[AVAILABLE_TOOLS]'
          ~ tool_str
          ~ '[/AVAILABLE_TOOLS]\n'
    -%}
    {%- set system_message = system_message ~ tool_instructions -%}
{% endif %}
{{- '[SYSTEM_PROMPT]' + system_message + '[/SYSTEM_PROMPT]' }}
{%- for message in loop_messages %}

    {%- if message['role'] == 'user' %}
        {{- '[INST]' + message['content'] + '[/INST]' }}

    {%- elif message['role'] == 'system' %}
        {{- '[SYSTEM_PROMPT]' + message['content'] + '[/SYSTEM_PROMPT]' }}

    {%- elif message['role'] == 'assistant' %}
        {%- if message.tool_calls is defined and message.tool_calls is not none -%}
            [TOOL_CALLS]
                {{ {"tool_calls": message.tool_calls}|tojson }}
            [/TOOL_CALLS]
        {%- elif message['content'] is defined and message['content'] is not none -%}
            {{- message['content'] + eos_token }}
        {%- endif %}

    {%- elif message['role'] == 'tool_calls' or message.tool_calls is defined %}
        {%- if message.tool_calls is defined %}
            {%- set tool_calls = message.tool_calls %}
        {%- else %}
            {%- set tool_calls = message.content %}
        {%- endif %}
        {{- "[TOOL_CALLS] [" }}
        {%- for tool_call in tool_calls %}
            {%- set out = tool_call.function|tojson %}
            {{- out[:-1] }}
            {%- if not tool_call.id is defined or tool_call.id|length < 9 %}
                {{- raise_exception("Tool call IDs should be alphanumeric strings with length >= 9!" + tool_call.id) }}
            {%- endif %}
            {{- ', "id": "' + tool_call.id + '"}' }}
            {%- if not loop.last %}
                {{- ", " }}
            {%- else %}
                {{- "]" + eos_token }}
            {%- endif %}
        {%- endfor %}

    {%- elif message["role"] == "tool" %}
        {%- if message.content is defined and message.content.content is defined %}
            {%- set content = message.content.content %}
        {%- else %}
            {%- set content = message.content %}
        {%- endif %}
        {{- '[TOOL_RESULTS] {"content": ' + content|string + ", " }}
        {%- if not message.tool_call_id is defined or message.tool_call_id|length < 9 %}
            {{- raise_exception("Tool call IDs should be alphanumeric strings with length >= 9!" + message.tool_call_id) }}
        {%- endif %}
        {{- '"call_id": "' + message.tool_call_id + '"}[/TOOL_RESULTS]' }}

    {%- elif message["role"] == "assistant" and message.content is defined and message.content is not none %}
        {{- message["content"] + eos_token }}

    {%- elif message['role'] == 'tool' -%}
        [TOOL_CONTENT]
            {{ {"tool_call_id": message['tool_call_id'], "tool_call": message['content']}|tojson }}
        [/TOOL_CONTENT]

    {%- else %}
        {{- raise_exception('Only user, system, assistant, tool_call & tool roles are supported!') }}
    {%- endif %}
{%- endfor %}