class_docstr: Tests for the pow method of non-parametric qutrit operations.
docstr: Tests that ops with period == 2 behave correctly when raised to various
  integer powers
docstr_tok: ["Tests","that","ops","with","period","==","2","behave","correctly","when","raised","to","various","integer","powers"]
code: def test_period_two_pow(self, offset, op):
      """Tests that ops with period == 2 behave correctly when raised to various
      integer powers"""
  
      assert len(op.pow(0 + offset)) == 0
      assert qml.equal(op.pow(1 + offset)[0], op)
  
imports: import copy
  import pytest
  import numpy
  from gate_data import TSHIFT, TCLOCK, TADD, TSWAP, TH
  import pennylane
  from pennylane.wires import Wires
label_desc: Use image node_id 5 for calling the TestPowMethod obj's underlying member method code with example usage: obj.test_period_two_pow(offset, op) without return types