code: def test_str(self):
      query_strategy = CategoryVectorInconsistencyAndRanking()
      self.assertEqual(
          "CategoryVectorInconsistencyAndRanking("
          "batch_size=2048, prediction_threshold=0.5, epsilon=1e-08)",
          str(query_strategy),
      )
  
imports: import unittest
  from small_text.query_strategies import CategoryVectorInconsistencyAndRanking
label_desc: Use image node_id 4 for calling the CategoryVectorInconsistencyAndRankingTest obj's underlying member method code with example usage: obj.test_str() without return types