`_identifying_params` broken in `ChatAnthropic` class

[thehunmonkgroup]

System Info

v0.0.298

Who can help?

@hwchase17 @ago

Information

• The official example notebooks/scripts
• My own modified scripts

Related Components

• LLMs/Chat Models
• Embedding Models
• Prompts / Prompt Templates / Prompt Selectors
• Output Parsers
• Document Loaders
• Vector Stores / Retrievers
• Memory
• Agents / Agent Executors
• Tools / Toolkits
• Chains
• Callbacks/Tracing
• Async

Reproduction

Create a ChatAnthropic class instance, note that both _identifying_params and dict() do not output the proper attributes, even though _default_params does.

I'd make a PR to fix this, but upon examining the code, it's not clear to me what is causing the bug.

from langchain.chat_models import ChatAnthropic
chat = ChatAnthropic()
chat._default_params
{'max_tokens_to_sample': 256, 'model': 'claude-2'}
chat._identifying_params
{}
chat.dict()
{'_type': 'anthropic-chat'}

Expected behavior

_identifying_paramsand dict() should output the correct params.

[dosubot]

🤖

Thanks for bringing this to our attention. To help us better understand the issue, could you please provide more information about your environment? Specifically, we would like to know:

• The Python version you are using.
• The operating system you are running.
• Any additional libraries or dependencies that you have installed.

Also, could you please clarify if you have made any modifications to the ChatAnthropic class or if you are using it as provided in the LangChain repository?

This information will help us reproduce the issue on our end and find a solution. Thanks for your cooperation.

---

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[thehunmonkgroup]

python --version
Python 3.11.4
/bin/cat /etc/issue
Pop!_OS 22.04 LTS \n \l

Running latest stock Langchain:

pip freeze | grep langchain
langchain==0.0.298

No libs that would modify Langchain in any way, my example clearly shows that I'm instantiating a basic ChatAnthropic class instance.

[dosubot]

Hi, @thehunmonkgroup! I'm helping the LangChain team manage their backlog and am marking this issue as stale.

It looks like you raised an issue regarding the incorrect output of the _identifying_params and dict() methods in the ChatAnthropic class in version v0.0.298. I requested more information about the environment, Python version, operating system, and any additional libraries or dependencies used. You provided the Python version, OS, and confirmed that no libraries were modifying Langchain.

Could you please confirm if this issue is still relevant to the latest version of the LangChain repository? If it is, please let the LangChain team know by commenting on the issue. Otherwise, feel free to close the issue yourself, or it will be automatically closed in 7 days. Thank you!

[thehunmonkgroup]

The issue persists in the latest version of Langchain -- I was able to reproduce the bug using the exact same example code as in my original post.