class_docstr: Test cancel inverses on tape, qfunc and QNode.
class_docstr_tok: ["Test","cancel","inverses","on","tape",",","qfunc","and","QNode","."]
docstr: Test the transform on a qnode directly.
docstr_tok: ["Test","the","transform","on","a","qnode","directly","."]
code: def test_qnode_diff_jax(self):
      """Test the transform on a qnode directly."""
      import jax
  
      a = jax.numpy.array([0.1, 0.2])
      transformed_qnode = cancel_inverses(qnode_circuit)
      res = jax.jacobian(transformed_qnode)(a)
      expected = jax.jacobian(qnode_circuit)(a)
      assert jax.numpy.allclose(res, expected)
  
imports: import pytest
  from utils import compare_operation_lists
  import pennylane
  from pennylane import numpy
  from pennylane.wires import Wires
  from pennylane.transforms.optimization import cancel_inverses
label_desc: Use image node_id 4 for calling the TestTransformDispatch obj's underlying member method code with example usage: obj.test_qnode_diff_jax() without return types