api: enhance ttl config api output

[lhy1024]

What problem does this PR solve?

Issue Number: Close #8450

What is changed and how does it work?

Check List

Tests

• Unit test
• Integration test

Release note

None.

[ti-chi-bot]

@okJiang: adding LGTM is restricted to approvers and reviewers in OWNERS files.

In response to this:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nolouch, okJiang, rleungx

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [nolouch,rleungx]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-07-29 04:28:19.95821917 +0000 UTC m=+157216.238267240: ☑️ agreed by nolouch.
• 2024-07-29 05:06:42.807657033 +0000 UTC m=+159519.087705087: ☑️ agreed by rleungx.

[ti-chi-bot]

@lhy1024: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-integration-realcluster-test	2cfbe4f	link	false	/test pull-integration-realcluster-test

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[lhy1024]

/test pull-integration-realcluster-test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.32%. Comparing base (11da622) to head (2cfbe4f).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8451      +/-   ##
==========================================
- Coverage   77.35%   77.32%   -0.03%     
==========================================
  Files         472      472              
  Lines       61799    61802       +3     
==========================================
- Hits        47803    47788      -15     
- Misses      10432    10439       +7     
- Partials     3564     3575      +11     

Flag	Coverage Δ
unittests	77.32% <100.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.