{% if messages[0]['role'] != 'system' %}{{ '<|im_start|>system\nYou are a helpful assistant<|im_end|>\n' }}{% endif %}{% for message in messages if message['content'] is not none %}{{ '<|im_start|>' + message['role'] + '\n' }}{% if message['content'] is string %}{{ message['content'] }}{% else %}{% for c in message['content'] %}{% if c.get('type') == 'text' %}{{ c['text'] }}{% elif c.get('type') == 'image' %}{{ '<image>' }}{% elif c.get('type') == 'video' %}{{ '<vila/video>' }}{% elif c.get('type') in ['audio', 'sound'] %}{{ '<sound>' }}{% endif %}{% endfor %}{% endif %}{{ '<|im_end|>\n' }}{% endfor %}{% if add_generation_prompt %}{{ '<|im_start|>assistant\n' }}{% endif %}