class_docstr: Basic decoder that just adds 1 to the encoded example.
class_docstr_tok: ["Basic","decoder","that","just","adds","1","to","the","encoded","example","."]
code: def decode_example(self, serialized_example):
      return serialized_example + 1
  
imports: import pickle
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_datasets import testing
  from tensorflow_datasets.core import dataset_utils
  from tensorflow_datasets.core import decode
  from tensorflow_datasets.core import features
label_desc: Use image node_id 1 for calling the IncrementDecoder obj's underlying member method code with example usage: obj.decode_example(serialized_example) and returns: unknown