class_docstr: Tests for the mutual information functions
docstr: Test that the relative entropy transform works for QNodes without arguments
docstr_tok: ["Test","that","the","relative","entropy","transform","works","for","QNodes","without","arguments"]
code: def test_qnode_no_args(self, device):
      """Test that the relative entropy transform works for QNodes without arguments"""
      dev = qml.device(device, wires=2)
  
      @qml.qnode(dev)
      def circuit1():
          qml.PauliY(wires=0)
          qml.CNOT(wires=[0, 1])
          return qml.state()
  
      @qml.qnode(dev)
      def circuit2():
          qml.PauliZ(wires=0)
          qml.CNOT(wires=[0, 1])
          return qml.state()
  
      rel_ent_circuit = qml.qinfo.relative_entropy(
          circuit1, circuit2, [0], [1]
      )
  
      # test that the circuit executes
      rel_ent_circuit()
  
imports: import pytest
  import pennylane
  from pennylane import numpy
label_desc: Use image node_id 10 for calling the TestRelativeEntropy obj's underlying member method code with example usage: obj.test_qnode_no_args(device) and returns: qml, qml