code: def copy_mx_model_to(model_path, model_epoch, output_folder):
      
      target_path = os.path.join(output_folder, os.path.basename(model_path))
      logger.info("Copying image model from {} to {}".format(model_path,
                                                             target_path))
      suffix = ['-symbol.json', '-%04d.params' % (model_epoch,)]
      for s in suffix:
          copyfile(model_path + s, target_path + s)
      return target_path
docs: Copy mxnet models to new path.
  
      :param model_path: Model path without -symbol.json and -%04d.params
      :param model_epoch: Epoch of the pretrained model
      :param output_folder: Output folder
      :return: New folder where the files are moved to