class_docstr: Test initialization and repr for jacobian product calculator classes.
class_docstr_tok: ["Test","initialization","and","repr","for","jacobian","product","calculator","classes","."]
docstr: Test the repr method for device jacobians.
docstr_tok: ["Test","the","repr","method","for","device","jacobians","."]
code: def test_device_jacobians_repr(self):
      """Test the repr method for device jacobians."""
      device = qml.device("default.qubit")
      config = qml.devices.ExecutionConfig(gradient_method="adjoint")
  
      jpc = DeviceDerivatives(device, config)
  
      expected = (
          r"<DeviceDerivatives: default.qubit, {},"
          r" ExecutionConfig(grad_on_execution=None, use_device_gradient=None,"
          r" use_device_jacobian_product=None,"
          r" gradient_method='adjoint', gradient_keyword_arguments={},"
          r" device_options={}, interface=None, derivative_order=1)>"
      )
  
      assert repr(jpc) == expected
  
imports: import pytest
  from cachetools import LRUCache
  from param_shift_dev import ParamShiftDerivativesDevice
  import numpy
  import pennylane
  from pennylane.workflow.jacobian_products import JacobianProductCalculator, TransformJacobianProducts, DeviceDerivatives, DeviceJacobianProducts, LightningVJPs
label_desc: Use image node_id 4 for calling the TestBasics obj's underlying member method code with example usage: obj.test_device_jacobians_repr() without return types