chore: Regenerate all APIs to update copyright year

[jskeet]

Validation that this is only copyright changes:

git diff --cached --unified=0 | grep -v Copyright | grep -v '\-\-\-' | grep -v '+++' | grep -v @@ | grep -v "diff --git" | grep -v -E '^index'

[jskeet]

(It would be useful if we could get this PR in today, before the next scheduled generation on Monday.)

[gemini-code-assist]

Summary of Changes

Hello @jskeet, 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 performs a routine maintenance task by updating the copyright year from 2025 to 2026 in all generated C# API snippet files for the Google Ads AdManager V1 client library. This ensures that all auto-generated code includes the most current copyright information.

Highlights

• Copyright Year Update: All generated API snippet files across the Google.Ads.AdManager.V1 directory have been updated to reflect the new copyright year, changing from 2025 to 2026.
• Automated Regeneration: This pull request is a result of regenerating all API files, ensuring consistency and compliance with copyright policies for the current year.

🧠 New Feature in Public Preview: You can now enable Memory to help Gemini Code Assist learn from your team's feedback. This makes future code reviews more consistent and personalized to your project's style. Click here to enable Memory in your admin console.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This pull request contains automated changes to update the copyright year from 2025 to 2026 across a large number of generated API files. The changes are consistent with the description and appear to be correctly applied. As the modifications are limited to copyright headers, I have no specific feedback on the code itself.

[jskeet]

I'll close the generation PR today so that this can go in first.

[jskeet]

@robertvoinescu-work: If you could have a look at this today, that would be really handy so that I can merge it before the next generation tomorrow. (So that the only generated changes tomorrow will be from API updates instead of copyright years.)