Qwen的chattemplate一看太复杂了,似乎最开始有tools的说明,assisatant会输出tool call并加入对话,以下给出Qwen官方的一个demo和自己的注释说明
基本Function call的实现划分为4步骤
- 定义函数,并使用Json格式存储函数说明
- 定义对话Prompt模板,将tools和message送给LLM处理
- 解析LLM的<tool_call></tool_call>并执行函数得到返回结果<tool_response></tool_response>
- 函数返回结果送给LLM继续处理query
{%- if tools %} #是否存在工具类,在对话最开始提供
{
{- '<|im_start|>system\n' }}
{%- if messages[0]['role'] == 'system' %}
{
{- messages[0]['content'] }}
{%- else %}
{
{- 'You are Qwen, created by Alibaba Cloud. You are a helpful assistant.' }}
{%- endif %}
{
{- "\n\n# Tools\n\nYou may call one or more functions to assist with the user query.\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>" }}
{%- for tool in tools %}
{
{- "\n" }}
{
{- tool | tojson }}
{%- endfor %}
{
{- "\n</tools>\n\nFor each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:\n<tool_call>\n{\"name\": <function-name>, \"arguments\": <args-json-object>}\n</tool_call><|im_end|>\n" }}
{%- else %} #正常对话第一步走这个流程
{%- if messages[0]['role'] == 'system' %}
{
{- '<|im_start|>system\n' + messages[0]['content'] + '<|im_end|>\n' }}
{%- else %}
{
{- '<|im_start|>system\nYou are Qwen, created by Alibaba Cloud. You are a helpful assistant.<|im_end|>\n' }}
{%- endif %}
{%- endif %}
{%- for message in messages %} #遍历多轮对话信息
{%- if (message.role == "user") or (message.role == "system" and not loop.first) or (message.role == "assistant" and not message.tool_calls) %}
{
{- '<|im_start|>' + message.role + '\n' + message.content + '<|im_end|>' + '\n' }}
{%- elif message.role == "assistant" %}
{
{- '<|im_start|>' + message.role }}
{%- if message.content %}
{
{- '\n' + message.content }}
{%- endif %}
{%- for tool_call in message.tool_calls %}
{%- if tool_call.function is defined %}
{%- set tool_call = tool_call.function %}
{%- endif %}
{
{- '\n<tool_call>\n{"name": "' }}
{
{- tool_call.name }}
{
{- '", "arguments": ' }}
{
{- tool_call.arguments | tojson }}
{
{- '}\n</tool_call>' }}
{%- endfor %}
{
{- '<|im_end|>\n' }}
{%- elif message.role == "tool" %}
{%- if (loop.index0 == 0) or (messages[loop.index0 - 1].role != "tool") %}
{
{- '<|im_start|>user' }}
{%- endif %}
{
{- '\n<tool_response>\n' }}
{
{- message.content }}
{
{- '\n</tool_response>' }}
{%- if loop.last or (messages[loop.index0 + 1].role != "tool") %}
{
{- '<|im_end|>\n' }}
{%- endif %}
{%- endif %}
{%- endfor %}
{%
Qwen Function call实现及长对话优化问题

最低0.47元/天 解锁文章
2万+

被折叠的 条评论
为什么被折叠?



