| {%- if enable_thinking is not defined -%} |
| {%- set enable_thinking = true -%} |
| {%- endif -%} |
| {%- macro render_content(content, is_system_content=false) -%} |
| {%- if content is string -%} |
| {{- content -}} |
| {%- elif content is iterable and content is not mapping -%} |
| {%- set ns = namespace(parts=[]) -%} |
| {%- for item in content -%} |
| {%- if 'image' in item or 'image_url' in item or item.type == 'image' -%} |
| {%- if is_system_content -%} |
| {{- raise_exception('System message cannot contain images.') -}} |
| {%- endif -%} |
| {%- set ns.parts = ns.parts + ['<|image_pad|>'] -%} |
| {%- elif 'video' in item or item.type == 'video' -%} |
| {%- if is_system_content -%} |
| {{- raise_exception('System message cannot contain videos.') -}} |
| {%- endif -%} |
| {%- set ns.parts = ns.parts + ['<|video_pad|>'] -%} |
| {%- elif 'text' in item -%} |
| {%- set ns.parts = ns.parts + [item.text] -%} |
| {%- else -%} |
| {{- raise_exception('Unexpected item type in content.') -}} |
| {%- endif -%} |
| {%- endfor -%} |
| {{- ns.parts | join('\n') -}} |
| {%- elif content is none or content is undefined -%} |
| {{- '' -}} |
| {%- else -%} |
| {{- raise_exception('Unexpected content type.') -}} |
| {%- endif -%} |
| {%- endmacro -%} |
| {%- if not messages %} |
| {{- raise_exception('No messages provided.') }} |
| {%- endif %} |
| {%- if tools and tools is iterable and tools is not mapping %} |
| {{- '<|im_start|>system\n' }} |
| {{- "# Tools\n\nYou have access to the following functions:\n\n<tools>" }} |
| {%- for tool in tools %} |
| {{- "\n" }} |
| {{- tool | tojson }} |
| {%- endfor %} |
| {{- "\n</tools>" }} |
| {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<tool_call>\n<function=example_function_name>\n<parameter=example_parameter_1>\nvalue_1\n</parameter>\n<parameter=example_parameter_2>\nThis is the value for the second parameter\nthat can span\nmultiple lines\n</parameter>\n</function>\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n- Required parameters MUST be specified\n- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n</IMPORTANT>' }} |
| {%- if messages[0].role == 'system' %} |
| {%- set content = render_content(messages[0].content, true)|trim %} |
| {%- if content %} |
| {{- '\n\n' + content }} |
| {%- endif %} |
| {%- endif %} |
| {{- '<|im_end|>\n' }} |
| {%- else %} |
| {%- if messages[0].role == 'system' %} |
| {%- set content = render_content(messages[0].content, true)|trim %} |
| {{- '<|im_start|>system\n' + content + '<|im_end|>\n' }} |
| {%- endif %} |
| {%- endif %} |
| {%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %} |
| {%- for message in messages[::-1] %} |
| {%- set index = (messages|length - 1) - loop.index0 %} |
| {%- if ns.multi_step_tool and message.role == "user" %} |
| {%- set content = render_content(message.content)|trim %} |
| {%- if not(content.startswith('<tool_response>') and content.endswith('</tool_response>')) %} |
| {%- set ns.multi_step_tool = false %} |
| {%- set ns.last_query_index = index %} |
| {%- endif %} |
| {%- endif %} |
| {%- endfor %} |
| {%- if ns.multi_step_tool %} |
| {{- raise_exception('No user query found in messages.') }} |
| {%- endif %} |
| {%- for message in messages %} |
| {%- set content = render_content(message.content)|trim %} |
| {%- if message.role == "system" %} |
| {%- if not loop.first %} |
| {{- raise_exception('System message must be at the beginning.') }} |
| {%- endif %} |
| {%- elif message.role == "user" %} |
| {{- '<|im_start|>' + message.role + '\n' + content + '<|im_end|>' + '\n' }} |
| {%- elif message.role == "assistant" %} |
| {%- set reasoning_content = '' %} |
| {%- if message.reasoning_content is string %} |
| {%- set reasoning_content = message.reasoning_content %} |
| {%- else %} |
| {%- if '</think>' in content %} |
| {%- set reasoning_content = content.split('</think>')[0].rstrip('\n').split('<think>')[-1].lstrip('\n') %} |
| {%- set content = content.split('</think>')[-1].lstrip('\n') %} |
| {%- endif %} |
| {%- endif %} |
| {%- set reasoning_content = reasoning_content|trim %} |
| {%- if loop.index0 > ns.last_query_index %} |
| {{- '<|im_start|>' + message.role + '\n<think>\n' + reasoning_content + '\n</think>\n\n' + content }} |
| {%- else %} |
| {{- '<|im_start|>' + message.role + '\n' + content }} |
| {%- endif %} |
| {%- if message.tool_calls and message.tool_calls is iterable and message.tool_calls is not mapping %} |
| {%- for tool_call in message.tool_calls %} |
| {%- if tool_call.function is defined %} |
| {%- set tool_call = tool_call.function %} |
| {%- endif %} |
| {%- if loop.first %} |
| {%- if content|trim %} |
| {{- '\n\n<tool_call>\n<function=' + tool_call.name + '>\n' }} |
| {%- else %} |
| {{- '<tool_call>\n<function=' + tool_call.name + '>\n' }} |
| {%- endif %} |
| {%- else %} |
| {{- '\n<tool_call>\n<function=' + tool_call.name + '>\n' }} |
| {%- endif %} |
| {%- if tool_call.arguments is defined %} |
| {%- for args_name, args_value in tool_call.arguments|items %} |
| {{- '<parameter=' + args_name + '>\n' }} |
| {%- set args_value = args_value | tojson | safe if args_value is mapping or (args_value is sequence and args_value is not string) else args_value | string %} |
| {{- args_value }} |
| {{- '\n</parameter>\n' }} |
| {%- endfor %} |
| {%- endif %} |
| {{- '</function>\n</tool_call>' }} |
| {%- endfor %} |
| {%- endif %} |
| {{- '<|im_end|>\n' }} |
| {%- elif message.role == "tool" %} |
| {%- if loop.previtem and loop.previtem.role != "tool" %} |
| {{- '<|im_start|>user' }} |
| {%- endif %} |
| {{- '\n<tool_response>\n' }} |
| {{- content }} |
| {{- '\n</tool_response>' }} |
| {%- if not loop.last and loop.nextitem.role != "tool" %} |
| {{- '<|im_end|>\n' }} |
| {%- elif loop.last %} |
| {{- '<|im_end|>\n' }} |
| {%- endif %} |
| {%- else %} |
| {{- raise_exception('Unexpected message role.') }} |
| {%- endif %} |
| {%- endfor %} |
| {%- if add_generation_prompt %} |
| {{- '<|im_start|>assistant\n' }} |
| {%- if enable_thinking is defined and enable_thinking is false %} |
| {{- '<think>\n\n</think>\n\n' }} |
| {%- else %} |
| {{- '<think>\n' }} |
| {%- endif %} |
| {%- endif %} |
| |
