Worked on the rjg-lyh/vllm-ascend repository with a focus on improving code quality and maintainability. Addressed technical debt in the fused_moe.py module by removing a duplicated and unused mc2_mask assignment, which had been previously declared elsewhere in the file. This targeted code refactoring, implemented in Python, did not introduce any user-facing changes but reduced the risk of future regressions and simplified the codebase for subsequent updates. The work emphasized careful code cleanup and maintainability, leveraging Python expertise and a methodical approach to technical debt, resulting in a more readable and robust code structure for future development.