code: def test_main(self):
      tdm = build_hamlet_jz_corpus_with_meta()
      features = FeatureLister(
          tdm._mX, tdm._metadata_idx_store, tdm.get_num_docs()
      ).output()
      expected = [
          {"cat4": 2, "cat3": 1},
          {"cat4": 2},
          {"cat5": 1, "cat3": 2},
          {"cat6": 2, "cat9": 1},
          {"cat4": 2, "cat3": 1},
          {"cat2": 1, "cat1": 2},
          {"cat2": 2, "cat5": 1},
          {"cat4": 1, "cat3": 2},
      ]
      expected = [
          {"cat1": 2},
          {"cat1": 2},
          {"cat1": 2},
          {"cat1": 2},
          {"cat1": 2},
          {"cat1": 2},
          {"cat1": 2},
          {"cat1": 2},
      ]
  
      self.assertEqual(features, expected)
  
imports: from unittest import TestCase
  from scattertext.FeatureOuput import FeatureLister
  from scattertext.test.test_termDocMatrixFactory import build_hamlet_jz_corpus_with_meta
label_desc: Use image node_id 1 for calling the TestFeatureList obj's underlying member method code with example usage: obj.test_main() without return types