The document discusses GitHub Copilot, an AI programming assistant. It notes that Copilot can help reduce the pain of writing tests by providing predictive text and increasing a developer's velocity. Several use cases for Copilot are provided, including writing better comments, pair programming, writing tests, and live coding. Copilot Labs is also discussed as helping developers become comfortable in new codebases, understand StackOverflow solutions, and gain additional context on data structures. The document concludes with examples of using Copilot and a reminder that it is still in beta.