fix(retail): add region tag for Java - Update import user events from gcs

[rebeccaellis]

Description

Fixes #415382524

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Checklist

• I have followed Sample Format Guide
• pom.xml parent set to latest shared-configuration
• Appropriate changes to README are included in PR
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• Tests pass: mvn clean verify required
• Lint passes: mvn -P lint checkstyle:check required
• Static Analysis: mvn -P lint clean compile pmd:cpd-check spotbugs:check advisory only
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• retail/interactive-tutorials/src/main/java/events/ImportUserEventsGcs.java:22, tag retail_import_user_events_from_gcs

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[gemini-code-assist]

Summary of Changes

Hello @rebeccaellis, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces region tags to the ImportUserEventsGcs.java sample file. This change is crucial for properly delineating the code snippet, enabling its use in automated documentation generation and ensuring that the sample can be easily extracted and run as part of Google Cloud's documentation efforts.

Highlights

• Code Sample Tagging: I've added [START] and [END] region tags to the ImportUserEventsGcs.java file. These tags specifically mark the retail_import_user_events_from_gcs sample, making it discoverable for documentation and testing systems.

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[gemini-code-assist]

Code Review

This pull request adds region tags to the ImportUserEventsGcs.java sample file. The placement of the tags is appropriate for creating a self-contained code sample.