Worked on the openfga/sdk-generator repository to enhance the code quality of its template-based OpenAPI client. Focused on Java and Mustache templates, the developer implemented targeted code cleanup and refactoring to improve maintainability and reliability. This included removing an unused private static method from ApiClient.mustache and simplifying the isNullable logic in AbstractOpenApiSchema.mustache, resulting in clearer behavior and reduced dead code. The approach emphasized maintainable code structure and easier onboarding for future contributors. By prioritizing code clarity and template refinement, the work contributed to a more robust client generation process without introducing new features or addressing bug fixes.