Worked on the oemof-solph repository to enhance the robustness of scalar numeric type handling within the move_undetected_scalars function. The approach involved refactoring the code to generalize numeric type checks by leveraging Python’s numbers.Number abstract base class, replacing a previously fixed list of numeric types. This adjustment improved the reliability of scalar attribute processing, reducing the likelihood of edge-case failures when models include diverse numeric representations. The work focused on type hinting and careful refactoring, ensuring broader compatibility for downstream optimization workflows. No major bugs were reported or fixed during this period, with efforts concentrated on feature enhancement and code maintainability.