{%- if not add_generation_prompt is defined -%}
    {%- set add_generation_prompt = true -%}
{%- endif -%}
{%- if not cls_token is defined -%}
    {%- set cls_token = "<|begin_of_sentence|>" -%}
{%- endif -%}
{%- if not sep_token is defined -%}
    {%- set sep_token = "<|end_of_sentence|>" -%}
{%- endif -%}
{%- if not image_token is defined -%}
    {%- set image_token = "<|IMAGE_START|><|IMAGE_PLACEHOLDER|><|IMAGE_END|>" -%}
{%- endif -%}
{{- cls_token -}}
{%- for message in messages -%}
    {%- if message["role"] == "user" -%}
        {{- "User: " -}}
        {%- for content in message["content"] -%}
            {%- if content["type"] == "image" -%}
                {{ image_token }}
            {%- endif -%}
        {%- endfor -%}
        {%- for content in message["content"] -%}
            {%- if content["type"] == "text" -%}
                {{ content["text"] }}
            {%- endif -%}
        {%- endfor -%}
        {{ "\n" -}}
    {%- elif message["role"] == "assistant" -%}
        {{- "Assistant: " -}}
        {%- for content in message["content"] -%}
            {%- if content["type"] == "text" -%}
                {{ content["text"] + "\n" }}
            {%- endif -%}
        {%- endfor -%}
        {{ sep_token -}}
    {%- elif message["role"] == "system" -%}
        {%- for content in message["content"] -%}
            {%- if content["type"] == "text" -%}
                {{ content["text"] + "\n" }}
            {%- endif -%}
        {%- endfor -%}
    {%- endif -%}
{%- endfor -%}
{%- if add_generation_prompt -%}
    {{- "Assistant: " -}}
{%- endif -%}