code: def test_Repr(self) -> None:
      self.assertEqual(str(self.constraint), self.constraint_repr)
  
imports: from ax.core.parameter import ChoiceParameter, FixedParameter, ParameterType, RangeParameter
  from ax.core.parameter_constraint import ComparisonOp, OrderConstraint, ParameterConstraint, SumConstraint
  from ax.utils.common.testutils import TestCase
label_desc: Use image node_id 4 for calling the ParameterConstraintTest obj's underlying member method code with example usage: obj.test_Repr() without return types