class_docstr: Visitor that translates the operation graph.
  
  The original graph is defined by the user in the preprocessing_fn.  The
  translated graph represents a Beam pipeline.
code: def validate_value(self, value):
      assert isinstance(value, nodes.ValueNode)
  
imports: import collections
  import dataclasses
  import hashlib
  from typing import Collection, Dict, Mapping, Optional, Tuple
  from typing import OrderedDict
  import tensorflow
  from tensorflow_transform import analyzer_nodes
  from tensorflow_transform import common_types
  from tensorflow_transform import graph_tools
  from tensorflow_transform import impl_helper
  from tensorflow_transform import nodes
  from tensorflow_transform import tf2_utils
  from tensorflow_transform import tf_utils
  from tensorflow_transform.beam import analyzer_cache
  from tensorflow_transform.beam import beam_nodes
  from tensorflow_transform.beam import combiner_packing_util
label_desc: Use image node_id 3 for calling the _TranslateVisitor obj's underlying member method code with example usage: obj.validate_value(value) without return types