The code is a concurrent file downloader in Go that splits a file into multiple parts, downloads them in parallel, and assembles the final file, with support for Etag validation to ensure file integrity.
Line of Code: Fields definition (Approx lines: 20-30)
Description: The fields within the Downloader struct are all publicly visible due to them being capitalized. Consider which fields truly need to be public and which can be private (start with a lowercase letter).
Severity: Moderate