class_docstr: Hook to initialize data iterator after session is created.
class_docstr_tok: ["Hook","to","initialize","data","iterator","after","session","is","created","."]
code: def __init__(self):
      super(IteratorInitializerHook, self).__init__()
      self.iterator_initializer_fn = None
  
imports: from absl import flags
  import numpy
  import six
  import tensorflow
  from tensorflow import estimator
  import tensorflow_ranking
label_desc: Use image node_id 1 to create a new IteratorInitializerHook object from inherited base classes: tf_estimator with example: obj = IteratorInitializerHook()