code: def load_test_data(
      dir_path="/scratch/snx3000/lyongbin/singa_my/cifar10_log/cifar-10-batches-py",
  ):
      images, labels = load_dataset(
          check_dataset_exist(dir_path + "/test_batch")
      )
      return np.array(images, dtype=np.float32), np.array(
          labels, dtype=np.int32
      )
  
file_path: singa/examples/cifar_distributed_cnn/data/cifar10.py
imports: import numpy
  import os
  import sys
label_desc: Use image node_id 3 for calling a global function with example usage: load_test_data(dir_path) and returns: np,  np