code: def test_predict_weighted_max(self):
      classifier = setup_multi_ruleset_classifier(
          RuleSelectionMethod.WEIGHTED_MAX
      )
      assignment = {"x1": 2.3, "x2": -1, "x3": -3, "x4": 4}
      actual = classifier.predict(assignment)
      expected = 0
      self.assertEqual(expected, actual)
  
file_path: AIX360/tests/rule_induction/trxf/classifier/test_ruleset_classifier.py
imports: from unittest import TestCase
  from aix360.algorithms.rule_induction.trxf.classifier.ruleset_classifier import RuleSetClassifier, RuleSelectionMethod, ConfidenceMetric, WeightMetric
  from tests.rule_induction.trxf import utilities
label_desc: Use image node_id 3 for calling the TestRuleSetClassifier obj's underlying member method code with example usage: obj.test_predict_weighted_max() without return types