downloadSourceArchive(package:version:destinationPath:progressHandler:timeout:fileSystem:observabilityScope:callbackQueue:completion:)

RegistryClient.swift:1008
func downloadSourceArchive(package: PackageIdentity, version: Version, destinationPath: AbsolutePath, progressHandler: ((_ bytesReceived: Int64, _ totalBytes: Int64?) -> Void)?, timeout: DispatchTimeInterval? = .none, fileSystem: FileSystem, observabilityScope: ObservabilityScope, callbackQueue: DispatchQueue, completion: @escaping (Result<Void, Error>) -> Void)