It seems that you’ve mentioned an “undefined Pull Request” for the Thanos project but didn’t provide any specific details or content about the Pull Request itself. To create a summary, I would need information such as:

• The title of the Pull Request
• The main changes or features introduced
• Any related issues or enhancements it addresses
• Key files or components affected
• Review comments or discussions that are relevant
• Any specific context or background information

If you can provide this information, I’d be happy to help you create a comprehensive summary for an advanced developer!