code: def setUp(self):
      self.nvtx_enabled = cuda.cupy.cuda.nvtx_enabled
      cuda.cupy.cuda.nvtx_enabled = False
  
imports: import unittest
  import mock
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import function_hooks
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 1 for calling the TestCUDAProfileHookNVTXUnavailable obj's underlying member method code with example usage: obj.setUp() without return types