code: def setUp(self):
      self.corpus = brown.tagged_sents()[:35]
      self.decoder = JSONTaggedDecoder()
      self.encoder = JSONTaggedEncoder()
      self.default_tagger = DefaultTagger("NN")
  
file_path: nltk/nltk/test/unit/test_json_serialization.py
imports: import unittest
  from nltk.corpus import brown
  from nltk.jsontags import JSONTaggedDecoder, JSONTaggedEncoder
  from nltk.tag import AffixTagger, BigramTagger, BrillTagger, BrillTaggerTrainer, DefaultTagger, NgramTagger, PerceptronTagger, RegexpTagger, TrigramTagger, UnigramTagger
  from nltk.tag.brill import nltkdemo18
label_desc: Use image node_id 1 for calling the TestJSONSerialization obj's underlying member method code with example usage: obj.setUp() without return types