Added labels to the Streamable.stream associated values for clarity.

Source/Request.swift

@@ -577,7 +577,7 @@ open class UploadRequest: DataRequest {
 /// Specific type of `Request` that manages an underlying `URLSessionStreamTask`.
 open class StreamRequest: Request {
     enum Streamable: TaskConvertible {
-        case stream(String, Int)
+        case stream(hostName: String, port: Int)
         case netService(NetService)
 
         func task(session: URLSession, adapter: RequestAdapter?, queue: DispatchQueue) -> URLSessionTask {

Source/SessionManager.swift

@@ -638,7 +638,7 @@ open class SessionManager {
     /// - returns: The created `StreamRequest`.
     @discardableResult
     open func stream(withHostName hostName: String, port: Int) -> StreamRequest {
-        return stream(.stream(hostName, port))
+        return stream(.stream(hostName: hostName, port: port))
     }
 
     // MARK: NetService