code: def test_equality(self):
      self.check_eq(True, cuda.Device(0), cuda.Device(0))
      self.check_eq(True, cuda.Device(1), cuda.Device(1))
      self.check_eq(False, cuda.Device(0), cuda.Device(1))
      self.check_eq(False, cuda.Device(0), 0)
      self.check_eq(False, cuda.Device(0), None)
      self.check_eq(False, cuda.Device(0), object())
  
imports: import re
  import threading
  import unittest
  import pytest
  import cupy
  from cupy import cuda
  from cupy import testing
label_desc: Use image node_id 2 for calling the TestDeviceComparison obj's underlying member method code with example usage: obj.test_equality() without return types