[community] Add timeout control and retry for UC tool execution

[serena-ruan]

Add timeout at client side for UCFunctionToolkit and add retry logic.
Users could specify environment variable UC_TOOL_CLIENT_EXECUTION_TIMEOUT to increase the timeout value for retrying to get the execution response if the status is pending. Default timeout value is 120s.

• Add tests and docs: If you're adding a new integration, please include
  1. a test for the integration, preferably unit tests that do not rely on network access,
  2. an example notebook showing its use. It lives in docs/docs/integrations directory.

Tested in Databricks:

• Lint and test: Run make format, make lint and make test from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/

Additional guidelines:

• Make sure optional dependencies are imported within a function.
• Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests.
• Most PRs should not touch more than one package.
• Changes should be backwards compatible.
• If you are adding something to community, do not re-import it in langchain.

If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, ccurme, vbarda, hwchase17.

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Name	Status	Preview	Comments	Updated (UTC)
langchain	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 9, 2024 6:31am

[serena-ruan]

@harupy Could you stamp this PR as well as you reviewed my last one :D Thanks!

[efriis]

converting to draft - let me know when it's ready for a review on the langchain side!

As I've mentioned on a few other PRs, it would make sense to migrate the UC tools to the langchain-databricks repo.

[serena-ruan]

converting to draft - let me know when it's ready for a review on the langchain side!

As I've mentioned on a few other PRs, it would make sense to migrate the UC tools to the langchain-databricks repo.

Thanks, we'll have some new implementation for langchain UC tools support, so want to keep the old one here :)

[BenWilson2]

LGTM!

[BenWilson2]

@efriis Hey Erick! :) This one's ready for your review. Thanks!

[serena-ruan]

Hi @efriis Could we merge this to catch the next release? Thanks!

[serena-ruan]

Hi @baskaryan Could you help merge this PR? Thanks!

[efriis]

Sorry for the delay!