Fix import_dashboard_template_lakeview

[chunheisiu]

Description

Fixes #342

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (non-code changes like README or docs)

How Has This Been Tested?

Tested in workspace hosted in Azure by running initializer notebook and run succeeded.

Checklist

• I have reviewed the CONTRIBUTING and VERSIONING documentation.
• My code follows the code style of this project.
• I have verified, added or updated the tests to cover my changes (if applicable).
• I have verified that my changes do not introduce any breaking changes on all the supported clouds (AWS, Azure, GCP).
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation (if applicable).

Screenshots (If Applicable)

Additional Notes

Sample response from current cell 17 when a dashboard with the same name exists:

{"error_code":"ALREADY_EXISTS","message":"A node with name 'Security Analysis Tool [SAT]' already exists under the specified parent","details":[{"@type":"type.googleapis.com/google.rpc.RequestInfo","request_id":"991090d0-efa4-4498-920a-2f0457bb9044","serving_data":""}]}

[CLAassistant]

All committers have signed the CLA.

[Copilot]

Pull request overview

Fixes SAT initializer notebook failures when importing the Lakeview dashboard by reliably detecting an existing dashboard and aligning error handling with the actual API error code.

Changes:

• Adds pagination + rate-limit retry/backoff when listing Lakeview dashboards to find an existing “Security Analysis Tool [SAT]” dashboard.
• Updates the “already exists” detection from RESOURCE_ALREADY_EXISTS to ALREADY_EXISTS.
• Minor whitespace/formatting cleanups.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[arunpamulapati]

@shreelshah12 will review, test and merge.