Langchain integration for dataset runs doesn't exist

[benlangfeld]

The documented example does not work since the get_langchain_handler function doesn't exist in the Python SDK.

AttributeError: 'DatasetItemClient' object has no attribute 'get_langchain_handler'

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Important

Removes non-existent get_langchain_handler example from remote-run.mdx documentation.

• Documentation:
  • Removes non-existent get_langchain_handler example from remote-run.mdx under "Langchain (Python)" tab.
  • Updates LangTabs to exclude "Langchain (Python)" option.

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