Worked on enhancing the baidubce/bce-qianfan-sdk repository by delivering support for the v2 API in the Go SDK, focusing on API integration and authentication improvements. Developed a new method for IAM Bearer Token retrieval and introduced a dedicated struct for Chat Completion v2 requests, enabling more flexible and secure authentication flows. Refactored request handling logic to accommodate multiple API versions and authentication methods, streamlining the onboarding of new features and improving the SDK’s security posture. Utilized Go for SDK development, emphasizing robust API integration and authentication mechanisms to support evolving requirements and ensure compatibility with future API updates.