docstr: Test that an error is raised if non-linear
  preprocessing happens in a circuit.
docstr_tok: ["Test","that","an","error","is","raised","if","non-linear","preprocessing","happens","in","a","circuit","."]
code: def test_nonlinear_error(self, circuit, args):
      """Test that an error is raised if non-linear
      preprocessing happens in a circuit."""
      dev = qml.device("default.qubit", wires=2)
      qnode = qml.QNode(circuit, dev)
      with pytest.raises(
          ValueError,
          match="The Jacobian of the classical preprocessing",
      ):
          qnode_spectrum(qnode)(*args)
  
imports: from collections import OrderedDict
  import numpy
  import pytest
  import pennylane
  from pennylane import numpy
  from pennylane.fourier.qnode_spectrum import _process_ids, qnode_spectrum
  from pennylane.measurements import SampleMP, StateMP, VarianceMP
label_desc: Use image node_id 2 for calling the TestAutograd obj's underlying member method code with example usage: obj.test_nonlinear_error(circuit, args) without return types