     /**
      Generates an authentication code using HMAC-SHA256.
      
-     @param request The NSMutableURLRequest used to generate the signature.
+     @param request The outbound NSMutableURLRequest used to generate the signature.
      @param timestamp The timestamp used to generate the signature.
      
      @return the encoded signature.

    
    // MARK: - Utility Methods
    
    func getCurrentTimeStamp() -> String {
        let dateFormatter = NSDateFormatter()
        

    }
    
    /**
     Adds the API Key as a query parameter to the request.
     
     @param request The outbound NSMutableURLRequest.
     */
