IBM COS S3 Transfer Manager

The `ibm-cos-sdk-s3transfer` library provides a high-level, multi-part, multi-threaded Amazon S3-like transfer manager optimized for IBM Cloud Object Storage (COS). It handles efficient uploading and downloading of files, especially large objects, managing part sizing and concurrency. It is currently at version 2.16.1 and receives regular updates, typically with minor feature releases every few months and patch releases for bug fixes.