Worked on enhancing the optuna/optuna repository by updating documentation to support the new GPSampler feature. Focused on rst-based documentation, the work involved adding GPSampler to the list of available samplers and updating the FAQ to clarify its role in constrained and multi-objective optimization, referencing integration with NSGAIISampler. The approach emphasized clear, traceable documentation changes, linking updates directly to the relevant commit for transparency. These improvements aimed to streamline user onboarding and reduce support queries by providing comprehensive guidance for constrained optimization workflows. The work demonstrated attention to detail in technical writing and effective use of documentation skills to drive adoption.