code: def _get_image(self, name):
      path = os.path.join(self.test_data, name)
      with tf.io.gfile.GFile(path, "rb") as img_f:
          return img_f.read()
  
file_path: datasets/tensorflow_datasets/core/utils/image_utils_test.py
imports: import os
  import numpy
  import tensorflow
  from tensorflow_datasets import testing
  from tensorflow_datasets.core.utils import image_utils
label_desc: Use image node_id 1 for calling the ImageUtilsTest obj's underlying member method code with example usage: obj._get_image(name) and returns: img_f