{%- if messages[0].role == 'system' %}{{ '<|im_start|>system\n' + messages[0].content + '<|im_end|>\n' }}{%- endif %}{%- for message in messages %}{%- if message.role == 'system' %}{%- elif message.role == 'user' %}{{ '<|im_start|>user\n' + message.content + '<|im_end|>\n' }}{%- elif message.role == 'assistant' %}{%- if message.content is defined and message.content %}{{ '<|im_start|>assistant\n' + message.content + '<|im_end|>\n' }}{%- endif %}{%- elif message.role == 'tool' %}{{ '<|im_start|>user\n<tool_response>\n' + message.content + '\n</tool_response><|im_end|>\n' }}{%- endif %}{%- endfor %}{%- if add_generation_prompt %}{{ '<|im_start|>assistant\n' }}{%- if enable_thinking is defined and enable_thinking is true %}{{ '<think>\n' }}{%- endif %}{%- endif %}