class_docstr: Integration tests for the vn_entropy measurement function.
docstr: Test that entropy cannot be returned with custom wires.
docstr_tok: ["Test","that","entropy","can","not","be","returned","with","custom","wires","."]
code: def test_qnode_entropy_no_custom_wires(self):
      """Test that entropy cannot be returned with custom wires."""
  
      dev = qml.device("default.qubit.legacy", wires=["a", 1])
  
      @qml.qnode(dev)
      def circuit_entropy(x):
          qml.IsingXX(x, wires=["a", 1])
          return qml.vn_entropy(wires=["a"])
  
      with pytest.raises(
          qml.QuantumFunctionError,
          match="Returning the Von Neumann entropy is not supported when using custom wire labels",
      ):
          circuit_entropy(0.1)
  
imports: import numpy
  import pytest
  import pennylane
  from pennylane.workflow import INTERFACE_MAP
  from pennylane.measurements import Shots
  from pennylane.measurements.vn_entropy import VnEntropyMP
label_desc: Use image node_id 12 for calling the TestIntegration obj's underlying member method code with example usage: obj.test_qnode_entropy_no_custom_wires() and returns: qml