class_docstr: Test inputs and pre-processing.
class_docstr_tok: ["Test","inputs","and","pre-processing","."]
docstr: Tests that the id attribute can be set.
docstr_tok: ["Tests","that","the","id","attribute","can","be","set","."]
code: def test_id(self):
      """Tests that the id attribute can be set."""
      template = qml.QuantumPhaseEstimation(
          np.eye(4),
          target_wires=[0, 1],
          estimation_wires=[2, 3],
          id="a",
      )
      assert template.id == "a"
  
file_path: pennylane/tests/templates/test_subroutines/test_qpe.py
imports: import pytest
  import numpy
  from scipy.stats import unitary_group
  import pennylane
label_desc: Use image node_id 2 for calling the TestInputs obj's underlying member method code with example usage: obj.test_id() without return types