class_docstr: A visitor that inspects the graph and looks for merge combine nodes.
class_docstr_tok: ["A","visitor","that","inspects","the","graph","and","looks","for","merge","combine","nodes","."]
code: def __init__(self):
      super().__init__()
      # Gather all the packable merge combines.
      # Dict {ExtractCombineMergeOutputs (child of CacheableCombineMerge) label:
      #       _CombinerOpWrapper}
      self.packable_combine_extract_outputs = collections.OrderedDict()
  
imports: import collections
  import dataclasses
  from typing import Sequence
  from tensorflow_transform import analyzer_nodes
  from tensorflow_transform import nodes
  from tensorflow_transform.beam import beam_nodes
label_desc: Use image node_id 1 to create a new _InspectMergeCombineVisitor object from inherited base classes: _ValidationVisitor with example: obj = _InspectMergeCombineVisitor()