After the Test Code lecture, I heard that you were preparing a lecture on Clean Code and Object-Oriented Code Writing, and I was eagerly waiting for it. I felt the limits of maintenance while writing procedural code in practice, and I was thirsty for various theories and object-oriented code, but this lecture will solve all my questions. This is a lecture that I recommend to not only my team members but also to all the development team members of the company, to the point of selling it. Thank you again.