{%- set identifier = 'im' %}
{% for message in messages %}
    {% if add_system_prompt and loop.first and message['role'] != 'system' %}
        {{- '<|im_start|>system
You are VideoLLaMA3 created by Alibaba DAMO Academy, a helpful assistant to help people understand images and videos.<|im_end|>
' -}}
    {% endif %}
    {% if message['role'] == 'stream' %}
        {% set identifier = 'stream' %}
    {% else %}
        {% set identifier = 'im' %}
    {% endif %}
    {{- '<|' + identifier + '_start|>' + message['role'] + '
' -}}
    {% if message['content'] is string %}
        {{- message['content'] -}}
    {% else %}
        {% for content in message['content'] %}
            {% if content is string %}
                {{- content -}}
            {% elif content['type'] == 'text' or 'text' in content %}
                {{- content['text'] -}}
            {% elif content['type'] == 'image' or 'image' in content %}
                {{- image_token + '
' -}}
            {% elif content['type'] == 'video' or 'video' in content %}
                {{- video_token + '
' -}}
            {% endif %}
        {% endfor %}
    {% endif %}
    {{- '<|' + identifier + '_end|>' -}}
    {% if identifier != 'stream' %}
        {{- '
' -}}
    {% endif %}
{% endfor %}
{% if add_generation_prompt %}
    {{- '<|im_start|>assistant
' -}}
{% endif %}