langchain[patch]: fix moderation chain init (#25778)
[This
commit](https://github.com/langchain-ai/langchain/commit/d3ca2cc8c3488eb973dd5ee3ebd4a8d10d8e2dbf)
has broken the moderation chain so we've faced a crash when migrating
the LangChain from v0.1 to v0.2.
The issue appears that the class attribute the code refers to doesn't
hold the value processed in the `validate_environment` method. We had
`extras={}` in this attribute, and it was casted to `True` when it
should've been `False`. Adding a simple assignment seems to resolve the
issue, though I'm not sure it's the right way.
---
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Co-authored-by: Michael Rubél <mrubel@oroinc.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
