class_docstr: Test conversion from dtypes to ctypes types 
class_docstr_tok: ["Test","conversion","from","dtypes","to","ctypes","types"]
code: def test_overlapping(self):
      dt = np.dtype(
          dict(
              names=["a", "b"],
              offsets=[0, 2],
              formats=[np.uint32, np.uint32],
          )
      )
      assert_raises(
          NotImplementedError, np.ctypeslib.as_ctypes_type, dt
      )
  
imports: import sys
  import sysconfig
  import weakref
  from pathlib import Path
  import pytest
  import numpy
  from numpy.ctypeslib import ndpointer, load_library, as_array
  from numpy.testing import assert_, assert_array_equal, assert_raises, assert_equal
label_desc: Use image node_id 7 for calling the TestAsCtypesType obj's underlying member method code with example usage: obj.test_overlapping() without return types