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.ArbitraryUnitary(
          np.random.random(size=(63,)), wires=range(3), id="a"
      )
      assert template.id == "a"
  
imports: import pytest
  import numpy
  from pennylane import numpy
  import pennylane
  from pennylane.templates.subroutines.arbitrary_unitary import _all_pauli_words_but_identity, _tuple_to_word, _n_k_gray_code
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