Worked on the googleapis/go-genai repository to enhance the reliability of the file upload workflow by addressing a critical bug in Go. Focused on error handling and defensive coding, the developer resolved a nil map initialization issue in the Files.Upload() function, ensuring that httpOptions.Headers is always a valid map even when config.HTTPOptions is nil. This fix eliminated a potential runtime panic during file uploads, improving SDK stability for clients integrating GenAI features. The work demonstrated attention to robust error handling and preventive measures, using Go to reduce runtime risks and maintain consistent behavior in enterprise file upload scenarios.