     public static var shared = HTTPSession()
 
     /// The underlying `URLSession` used for tasks.
-    public private(set) var session: URLSession!
+    public private(set) var urlSession: URLSession!
 
     /// If set this handler will be used for both session and task authentication challenges.
     public var authenticationChallengeHandler: ( (URLSession, URLSessionTask?, URLAuthenticationChallenge) -> (URLSession.AuthChallengeDisposition, URLCredential?) )?

        self.completion = completion
    }
}


        return task.taskIdentifier
    }
}

extension HTTPSession: URLSessionDelegate {
