code: def test_evaluate_LT(self):
      mock_feature = Feature("numerical_feature")
      mock_feature.evaluate = MagicMock(return_value=3.4)
      assignment = {"numerical_feature": 3.4}
  
      isLessThan3 = predicate.Predicate(
          mock_feature, predicate.Relation.LT, 3
      )
      self.assertFalse(isLessThan3.evaluate(assignment))
  
      isLessThan4 = predicate.Predicate(
          mock_feature, predicate.Relation.LT, 4
      )
      self.assertTrue(isLessThan4.evaluate(assignment))
  
      self.assertRaises(
          ValueError,
          predicate.Predicate(mock_feature, "LT", 4).evaluate,
          assignment,
      )
  
file_path: AIX360/tests/rule_induction/trxf/core/test_predicate.py
imports: from unittest import TestCase
  from unittest.mock import MagicMock
  import aix360.algorithms.rule_induction.trxf.core.predicate
  from aix360.algorithms.rule_induction.trxf.core.feature import Feature
label_desc: Use image node_id 4 for calling the TestPredicate obj's underlying member method code with example usage: obj.test_evaluate_LT() without return types