class_docstr: Unit tests for the ``qml.vn_entropy`` function.
docstr: Test that the right measurement class is queued.
docstr_tok: ["Test","that","the","right","measurement","class","is","queued","."]
code: def test_queue(self):
      """Test that the right measurement class is queued."""
      dev = qml.device("default.qubit.legacy", wires=2)
  
      @qml.qnode(dev)
      def circuit():
          return qml.vn_entropy(wires=0, log_base=2)
  
      circuit()
  
      assert isinstance(circuit.tape[0], VnEntropyMP)
  
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 2 for calling the TestInitialization obj's underlying member method code with example usage: obj.test_queue() and returns: qml