It appears that you’ve referenced an “undefined Pull Request” for the Thanos project, but with no specific details or context provided about the pull request, I’m unable to create a summary.

To help you effectively, please provide more information about the pull request, such as:

• The title and description of the pull request
• The main changes or features being introduced
• The files or components affected
• Any issues or bugs it addresses
• Related discussions or comments

With this information, I would be able to craft a meaningful summary for an advanced developer.