Upload chat_template.jinja with huggingface_hub
Browse files- chat_template.jinja +77 -0
chat_template.jinja
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{%- if not add_generation_prompt is defined %}{%- set add_generation_prompt = false %}{%- endif %}
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{#- Two fixes over the stock DeepSeek-R1-Distill template:
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1. `tools` is accepted and rendered. The stock template emits assistant
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tool CALLS using the native <|tool_calls_begin|> tokens but has no way to
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DECLARE the available tools, so passing tools=[...] raised
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"can only concatenate str (not dict) to str" and every tool example was
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silently dropped from training.
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2. <think> is preserved on the FINAL assistant message. The stock template
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ran content.split('</think>')[-1] on every assistant turn, which deletes
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the reasoning from the training target — so no amount of think-formatted
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data could ever teach thinking. Stale reasoning is still stripped from
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earlier turns, which is the behaviour you actually want at inference.
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-#}
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{%- set ns = namespace(is_first=false, is_tool=false, is_output_first=true, system_prompt='') %}
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{%- for message in messages %}
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{%- if message['role'] == 'system' %}{%- set ns.system_prompt = message['content'] %}{%- endif %}
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{%- endfor %}
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{{- bos_token }}
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{%- if tools %}
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{{- ns.system_prompt }}
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{{- '\n\n# Tools\n\nYou may call one or more of the following functions. Emit a tool call only when it is actually needed.\n\n<tools>' }}
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{%- for tool in tools %}
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{%- set fn = tool['function'] if tool.get('function') is defined else tool %}
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{{- '\n' + (fn | tojson) }}
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{%- endfor %}
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{{- '\n</tools>' }}
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{%- else %}
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{{- ns.system_prompt }}
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{%- endif %}
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{%- set last = (messages | length) - 1 %}
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{%- for message in messages %}
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{%- if message['role'] == 'user' %}
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{%- set ns.is_tool = false -%}
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{{- '<｜User｜>' + message['content'] }}
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{%- endif %}
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{%- if message['role'] == 'assistant' and message.get('tool_calls') %}
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{%- set ns.is_tool = false -%}
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{%- for tool in message['tool_calls'] %}
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{%- set fn = tool['function'] %}
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{%- set args = fn['arguments'] if fn['arguments'] is string else (fn['arguments'] | tojson) %}
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{%- if not ns.is_first %}
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{{- '<｜Assistant｜><｜tool▁calls▁begin｜><｜tool▁call▁begin｜>' + (tool.get('type') or 'function') + '<｜tool▁sep｜>' + fn['name'] + '\n```json\n' + args + '\n```<｜tool▁call▁end｜>' }}
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{%- set ns.is_first = true -%}
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{%- else %}
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{{- '\n<｜tool▁call▁begin｜>' + (tool.get('type') or 'function') + '<｜tool▁sep｜>' + fn['name'] + '\n```json\n' + args + '\n```<｜tool▁call▁end｜>' }}
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{%- endif %}
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{%- endfor %}
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{{- '<｜tool▁calls▁end｜><｜end▁of▁sentence｜>' }}
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{%- set ns.is_first = false -%}
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{%- endif %}
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{%- if message['role'] == 'assistant' and message.get('content') %}
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{%- set content = message['content'] %}
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{#- keep reasoning on the last turn (the training target); drop it from history -#}
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{%- if '</think>' in content and not loop.index0 == last %}
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{%- set content = content.split('</think>')[-1] %}
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{%- endif %}
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{%- if ns.is_tool %}
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{{- '<｜tool▁outputs▁end｜>' + content + '<｜end▁of▁sentence｜>' }}
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{%- set ns.is_tool = false -%}
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{%- else %}
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{{- '<｜Assistant｜>' + content + '<｜end▁of▁sentence｜>' }}
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{%- endif %}
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{%- endif %}
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{%- if message['role'] == 'tool' %}
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{%- set ns.is_tool = true -%}
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{%- if ns.is_output_first %}
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{{- '<｜tool▁outputs▁begin｜><｜tool▁output▁begin｜>' + message['content'] + '<｜tool▁output▁end｜>' }}
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{%- set ns.is_output_first = false %}
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{%- else %}
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{{- '\n<｜tool▁output▁begin｜>' + message['content'] + '<｜tool▁output▁end｜>' }}
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{%- endif %}
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{%- endif %}
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{%- endfor -%}
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{%- if ns.is_tool %}{{- '<｜tool▁outputs▁end｜>' }}{%- endif %}
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{%- if add_generation_prompt and not ns.is_tool %}{{- '<｜Assistant｜>' }}{%- endif %}
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