code: def test_packbits_empty(self):
      # Note packbits of numpy <= 1.11 has a bug against empty arrays.
      # See https://github.com/numpy/numpy/issues/8324
      self.check_packbits([])
  
file_path: cupy/tests/cupy_tests/binary_tests/test_packing.py
imports: import numpy
  import unittest
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 5 for calling the TestPacking obj's underlying member method code with example usage: obj.test_packbits_empty() without return types