code: def setUp(self):
      self.gpu_device = torch.cuda.current_device()
  
file_path: MONAI/tests/test_convert_to_trt.py
imports: from __future__ import annotations
  import tempfile
  import unittest
  import torch
  from parameterized import parameterized
  from monai.networks import convert_to_trt
  from monai.networks.nets import UNet
  from monai.utils import optional_import
  from tests.utils import skip_if_no_cuda, skip_if_quick, skip_if_windows
label_desc: Use image node_id 1 for calling the TestConvertToTRT obj's underlying member method code with example usage: obj.setUp() without return types