class_docstr: Test class properties.
class_docstr_tok: ["Test","class","properties","."]
docstr: Test num_wires property updates correctly.
docstr_tok: ["Test","num_wires","property","updates","correctly","."]
code: def test_num_wires(self, ops_lst):
      """Test num_wires property updates correctly."""
      valid_op = ValidOp(*ops_lst)
      true_wires = set()
  
      for op in ops_lst:
          true_wires = true_wires.union(op.wires.toset())
  
      assert valid_op.num_wires == len(true_wires)
  
imports: from copy import copy
  import numpy
  import pytest
  import pennylane
  from pennylane.operation import DecompositionUndefinedError
  from pennylane.ops.op_math import CompositeOp, Prod, Sum, SProd
  from pennylane.wires import Wires
label_desc: Use image node_id 2 for calling the TestProperties obj's underlying member method code with example usage: obj.test_num_wires(ops_lst) without return types