code: def test_label_method(op, label):
      """Tests that the label method gives the expected result."""
      assert op.label() == label
      assert op.label(decimals=2) == label
  
imports: import copy
  import numpy
  import pytest
  from scipy.linalg import fractional_matrix_power
  from scipy.sparse import csr_matrix
  from scipy.stats import unitary_group
  from gate_data import CY, CZ
  import pennylane
  from pennylane.wires import Wires
  from pennylane.operation import AnyWires
  from pennylane.ops.qubit.matrix_ops import QubitUnitary
label_desc: Use image node_id 1 for calling a global function with example usage: test_label_method(op, label) without return types