// Calls the client's scan module scancode to perform a scan 
// @param scanPrams A dictionary of scan parameters 
// @param navigationController The view controller from which to present the scan view controller
// @param completionHandler A callback to handle the result 
- (void)scanCode:(NSDictionary *)scanPrams
navigationController:(UINavigationController *)navigationController
completionHandler:(MACommonCallback)completionHandler;