[Feature][proxy adapter] This happens when the openai api started by vllm is having a conversation.

[ArboterJams]

Search before asking

• I had searched in the issues and found no similar feature requirement.

Description

在大模型回答中出现<|im_end|><|im_start|>user类似的文字

Use case

想询问一下该如何修改代码可以让大模型回答保持正常

Related issues

No response

Feature Priority

None

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[Aries-ckt]

/assign @fangyinc

[Kain Shu]

自己手动尝试新增一行代码

file: dbgpt/model/proxy/llms/chatgpt.py

async def chatgpt_generate_stream(
    model: ProxyModel, tokenizer, params, device, context_len=2048
):
    client: OpenAILLMClient = model.proxy_llm_client
    context = ModelRequestContext(stream=True, user_name=params.get("user_name"))
    request = ModelRequest.build_request(
        client.default_model,
        messages=params["messages"],
        temperature=params.get("temperature"),
        context=context,
        max_new_tokens=params.get("max_new_tokens"),
++      stop="<|im_end|>"
    )
    async for r in client.generate_stream(request):
        yield r