code: def test_byte_bounds(self):
      # pointer difference matches size * itemsize
      # due to contiguity
      a = np.arange(12).reshape(3, 4)
      low, high = array_utils.byte_bounds(a)
      assert_equal(high - low, a.size * a.itemsize)
  
file_path: numpy/numpy/lib/tests/test_array_utils.py
imports: import numpy
  from numpy.lib import array_utils
  from numpy.testing import assert_equal
label_desc: Use image node_id 1 for calling the TestByteBounds obj's underlying member method code with example usage: obj.test_byte_bounds() without return types