title: AttributeError: 'PrefetchDataset' object has no attribute 'make_initializable_iterator'
body: <p>I receive: 'AttributeError: 'PrefetchDataset' object has no attribute 'make_initializable_iterator''
  I am using:
  import tensorflow.compat.v1 as tf
  tf.disable_v2_behavior()</p>
  
  <pre class="lang-py prettyprint-override"><code>train_data, train_data_infer=_get_training_data(FLAGS)
  iter_train = train_data.make_initializable_iterator()
  iter_train_infer=train_data_infer.make_initializable_iterator()
  </code></pre>
  
  <p>Thanks</p>