text: import os
  
  if __name__ == "__main__":
      apphub_path = os.path.abspath(os.path.join(__file__, "..", "..", "..", "..", "apphub"))
  
      example_name = "dnn_breast_cancer"
      source_dir = os.path.join(apphub_path, "tabular", "dnn_breast_cancer")
      stderr_file = os.path.abspath(os.path.join(__file__, "..", "run_python.txt"))
      if os.path.exists(stderr_file):
          os.remove(stderr_file)
          
      py_file = os.path.join(source_dir, example_name + ".py")
  
      train_info = "--epochs 2 --batch_size 2 --steps_per_epoch 10 --validation_steps 5"
      result = os.system("fastestimator train {} {} 2>> {}".format(py_file, train_info, stderr_file))
  
      if result:
          raise ValueError("{} fail".format(py_file))
  