code: def test_empty_batch(self):
      self._test_det_3x3(0, torch.device("cpu"))
      self._test_det_3x3(0, torch.device("cuda:0"))
  
file_path: pytorch3d/tests/test_common_workaround.py
imports: import unittest
  import numpy
  import torch
  from pytorch3d.common.workaround import _safe_det_3x3
  from .common_testing import TestCaseMixin
label_desc: Use image node_id 3 for calling the TestSafeDet3x3 obj's underlying member method code with example usage: obj.test_empty_batch() without return types