code: def main():
      
      parser = argparse.ArgumentParser()
      parser.add_argument("path", help="Path to the CAPTCHA image file")
      parser.add_argument("--prefix", help="Checkpoint prefix [Default 'ocr']", default='ocr')
      parser.add_argument("--epoch", help="Checkpoint epoch [Default 100]", type=int, default=100)
      args = parser.parse_args()
  
      init_state_names, init_state_arrays = lstm_init_states(batch_size=1)
      img = read_img(args.path)
  
      sample = SimpleBatch(
          data_names=['data'] + init_state_names,
          data=[mx.nd.array(img)] + init_state_arrays)
  
      mod = load_module(args.prefix, args.epoch, sample.data_names, sample.provide_data)
  
      mod.forward(sample)
      prob = mod.get_outputs()[0].asnumpy()
  
      prediction = CtcMetrics.ctc_label(np.argmax(prob, axis=-1).tolist())
      # Predictions are 1 to 10 for digits 0 to 9 respectively (prediction 0 means no-digit)
      prediction = [p - 1 for p in prediction]
      print("Digits:", prediction)
docs: Program entry point