class_docstr: Tests for the ``adjoint_jacobian`` method
class_docstr_tok: ["Tests","for","the","``","adjoint_jacobian","``","method"]
docstr: Fixture that creates a device with two wires.
docstr_tok: ["Fixture","that","creates","a","device","with","two","wires","."]
code: def dev(self):
      """Fixture that creates a device with two wires."""
      return qml.device("default.qubit.legacy", wires=2)
  
imports: import pytest
  import pennylane
  from pennylane import numpy
label_desc: Use image node_id 1 for calling the TestAdjointJacobian obj's underlying member method code with example usage: obj.dev() and returns: qml