code: def test_value_type(self, dtype, order):
      x = cupy.zeros(self.shape, dtype=dtype, order=order)
      y = x[self.slices]
  
      # mandatory entries
      with self.stream:
          CAI = y.__cuda_array_interface__
      shape = CAI["shape"]
      typestr = CAI["typestr"]
      ptr, readonly = CAI["data"]
      version = CAI["version"]
      strides = CAI["strides"]
  
      # optional entries
      descr = CAI["descr"] if "descr" in CAI else None
      stream = CAI["stream"] if "stream" in CAI else None
  
      # Don't validate correctness of data here, just their types
      assert version == 3  # bump this when the protocol is updated!
      assert isinstance(CAI, dict)
      assert isinstance(shape, tuple)
      assert isinstance(typestr, str)
      assert isinstance(ptr, int)
      assert isinstance(readonly, bool)
      assert (strides is None) or isinstance(strides, tuple)
      assert (descr is None) or isinstance(descr, list)
      if isinstance(descr, list):
          for item in descr:
              assert isinstance(item, tuple)
      assert (stream is None) or isinstance(stream, int)
  
imports: import unittest
  import pytest
  from cupy_backends.cuda import stream
  import cupy
  from cupy import _core
  from cupy import testing
label_desc: Use image node_id 2 for calling the TestCUDAArrayInterfaceCompliance obj's underlying member method code with example usage: obj.test_value_type(dtype, order) without return types