class_docstr: Base decoder object.
  
  `tfds.decode.Decoder` allows for overriding the default decoding by
  implementing a subclass, or skipping it entirely with
  `tfds.decode.SkipDecoding`.
  
  Instead of subclassing, you can also create a `Decoder` from a function
  with the `tfds.decode.make_decoder` decorator.
  
  All decoders must derive from this base class. The implementation can
  access the `self.feature` property which will correspond to the
  `FeatureConnector` to which this decoder is applied.
  
  To implement a decoder, the main method to override is `decode_example`,
  which takes the serialized feature as input and returns the decoded feature.
  
  If `decode_example` changes the output dtype, you must also override
  the `dtype` property. This enables compatibility with
  `tfds.features.Sequence`.
docstr: Transformation contructor.
  
  The initialization of decode object is deferred because the objects only
  know the builder/features on which it is used after it has been
  constructed, the initialization is done in this function.
  
  Args:
    feature: `tfds.features.FeatureConnector`, the feature to which is applied
      this transformation.
docstr_tok: ["Transformation","contructor",".","The","initialization","of","decode","object","is","deferred","because","the","objects","only","know","the","builder\/features","on","which","it","is","used","after","it","has","been","constructed",",","the","initialization","is","done","in","this","function",".","Args",":","feature",":","`","tfds.features.FeatureConnector","`",",","the","feature","to","which","is","applied","this","transformation","."]
code: def setup(self, *, feature):
      """Transformation contructor.
  
      The initialization of decode object is deferred because the objects only
      know the builder/features on which it is used after it has been
      constructed, the initialization is done in this function.
  
      Args:
        feature: `tfds.features.FeatureConnector`, the feature to which is applied
          this transformation.
      """
      self._feature = feature
  
imports: import abc
  import functools
  from tensorflow_datasets.core.utils import tree_utils
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
label_desc: Use image node_id 3 for calling the Decoder obj's underlying member method code with example usage: obj.setup() without return types