@tiangolo Hi! This PR adds comprehensive docstrings to improve code documentation in utils.py. I notice the check-labels workflow is failing. Could you please help add the appropriate label for this documentation PR? Happy to make any changes based on your feedback. Thank you!

Analysis of Failing and Pending Checks

I've investigated the check status for this PR. Here's what I found:

❌ 1 Failing Check:

Labels / check-labels (pull_request_target) - Failing after 5s (Required)

• Root Cause: The check is failing because the PR is missing a required label. The error message states: "Label check failed: required 1 of 'breaking', 'security', 'feature', 'bug', 'refactor', 'upgrade', 'docs', 'lang-all', 'internal', but found 0."
• Recommendation: This PR needs the docs label added by a maintainer since it's adding documentation (docstrings) to utility functions.
• Action Required: A maintainer with triage permissions needs to add the docs label to resolve this failure.

⏳ 4 Pending Checks:

The following checks are waiting for maintainer approval (normal for external PRs):

1. check
2. docs-all-green
3. smokeshow / coverage
4. test-redistribute-alls-green

Action Required: A maintainer needs to approve the workflows for these checks to run.

⚠️ Branch Status:

The branch is out-of-date with the base branch.

• Recommendation: Update the branch by clicking "Update branch" button to ensure compatibility with the latest changes.

✅ Next Steps:

1. Maintainer: Add the docs label to fix the failing check
2. Maintainer: Approve the pending workflows to run
3. Author: Consider updating the branch to sync with latest changes
4. Maintainer: Review the PR once all checks pass

The code changes look good - this is purely a labels/workflow configuration issue, not a code problem!