mirror of https://github.com/vllm-project/vllm
134 lines
5.7 KiB
Django/Jinja
134 lines
5.7 KiB
Django/Jinja
{{- bos_token }}
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{%- if custom_tools is defined %}
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{%- set tools = custom_tools %}
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{%- endif %}
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{%- if not tools_in_user_message is defined %}
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{%- set tools_in_user_message = false %}
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{%- endif %}
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{%- if not date_string is defined %}
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{%- if strftime_now is defined %}
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{%- set date_string = strftime_now("%d %b %Y") %}
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{%- else %}
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{%- set date_string = "26 Jul 2024" %}
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{%- endif %}
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{%- endif %}
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{%- if not tools is defined %}
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{%- set tools = none %}
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{%- endif %}
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{#- Find out if there are any images #}
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{% set image_ns = namespace(has_images=false) %}
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{%- for message in messages %}
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{%- for content in message['content'] %}
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{%- if content['type'] == 'image' %}
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{%- set image_ns.has_images = true %}
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{%- endif %}
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{%- endfor %}
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{%- endfor %}
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{#- This block extracts the system message, so we can slot it into the right place. #}
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{%- if messages[0]['role'] == 'system' %}
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{%- if messages[0]['content'] is string %}
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{%- set system_message = messages[0]['content']|trim %}
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{%- else %}
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{%- set system_message = messages[0]['content'][0]['text']|trim %}
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{%- endif %}
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{%- set messages = messages[1:] %}
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{%- else %}
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{%- if tools is not none %}
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{%- set system_message = "You are a helpful assistant with tool calling capabilities. Only reply with a tool call if the function exists in the library provided by the user. If it doesn't exist, just reply directly in natural language. When you receive a tool call response, use the output to format an answer to the original user question." %}
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{%- else %}
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{%- set system_message = "" %}
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{%- endif %}
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{%- endif %}
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{#- System message if there are no images, if the user supplied one, or if tools are used (default tool system message) #}
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{%- if system_message or not image_ns.has_images %}
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{{- "<|start_header_id|>system<|end_header_id|>\n\n" }}
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{%- if tools is not none %}
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{{- "Environment: ipython\n" }}
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{%- endif %}
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{{- "Cutting Knowledge Date: December 2023\n" }}
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{{- "Today Date: " + date_string + "\n\n" }}
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{%- if tools is not none and not tools_in_user_message %}
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{{- "You have access to the following functions. To call a function, please respond with JSON for a function call. " }}
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{{- 'Respond in the format {"name": function name, "parameters": dictionary of argument name and its value}. ' }}
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{{- "Do not use variables.\n\n" }}
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{%- for t in tools %}
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{{- t | tojson(indent=4) }}
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{{- "\n\n" }}
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{%- endfor %}
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{%- endif %}
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{{- system_message }}
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{{- "<|eot_id|>" }}
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{%- endif %}
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{#- Custom tools are passed in a user message with some extra guidance #}
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{%- if tools_in_user_message and not tools is none %}
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{#- Extract the first user message so we can plug it in here #}
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{%- if messages | length != 0 %}
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{%- if messages[0]['content'] is string %}
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{%- set first_user_message = messages[0]['content']|trim %}
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{%- else %}
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{%- set first_user_message = messages[0]['content'] | selectattr('type', 'equalto', 'text') | map(attribute='text') | map('trim') | join('\n') %}
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{%- endif %}
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{%- set messages = messages[1:] %}
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{%- else %}
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{{- raise_exception("Cannot put tools in the first user message when there's no first user message!") }}
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{%- endif %}
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{{- '<|start_header_id|>user<|end_header_id|>\n\n' -}}
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{{- "Given the following functions, please respond with a JSON for a function call " }}
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{{- "with its proper arguments that best answers the given prompt.\n\n" }}
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{{- 'Respond in the format {"name": function name, "parameters": dictionary of argument name and its value}. ' }}
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{{- "Do not use variables.\n\n" }}
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{%- for t in tools %}
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{{- t | tojson(indent=4) }}
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{{- "\n\n" }}
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{%- endfor %}
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{{- first_user_message + "<|eot_id|>"}}
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{%- endif %}
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{%- for message in messages %}
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{%- if not (message.role == 'ipython' or message.role == 'tool' or 'tool_calls' in message) %}
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{{- '<|start_header_id|>' + message['role'] + '<|end_header_id|>\n\n' }}
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{%- if message['content'] is string %}
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{{- message['content'] | trim}}
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{%- else %}
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{%- for content in message['content'] %}
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{%- if content['type'] == 'image' %}
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{{- '<|image|>' }}
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{%- elif content['type'] == 'text' %}
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{{- content['text'] | trim }}
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{%- endif %}
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{%- endfor %}
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{%- endif %}
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{{- '<|eot_id|>' }}
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{%- elif 'tool_calls' in message %}
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{%- if not message.tool_calls|length == 1 %}
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{{- raise_exception("This model only supports single tool-calls at once!") }}
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{%- endif %}
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{%- set tool_call = message.tool_calls[0].function %}
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{{- '<|start_header_id|>assistant<|end_header_id|>\n\n' -}}
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{{- '{"name": "' + tool_call.name + '", ' }}
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{{- '"parameters": ' }}
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{{- tool_call.arguments | tojson }}
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{{- "}" }}
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{{- "<|eot_id|>" }}
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{%- elif message.role == "tool" or message.role == "ipython" %}
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{{- "<|start_header_id|>ipython<|end_header_id|>\n\n" }}
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{%- if message.content is string %}
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{{- { "output": message.content } | tojson }}
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{%- else %}
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{%- for content in message['content'] %}
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{%- if content['type'] == 'text' %}
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{{- { "output": content['text'] } | tojson }}
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{%- endif %}
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{%- endfor %}
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{%- endif %}
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{{- "<|eot_id|>" }}
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{%- endif %}
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{%- endfor %}
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{%- if add_generation_prompt %}
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{{- '<|start_header_id|>assistant<|end_header_id|>\n\n' }}
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{%- endif %}
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