code: def test_basics(self):
      for ct, pt in zip(ctype_types, python_types):
          i = ct(42)
          p = pointer(i)
          self.assertIs(type(p.contents), ct)
          # p.contents is the same as p[0]
  
          with self.assertRaises(TypeError):
              del p[0]
  
imports: import _ctypes_test
  import array
  import ctypes
  import sys
  import unittest
  from ctypes import CDLL, CFUNCTYPE, Structure, POINTER, pointer, _Pointer, _pointer_type_cache, byref, sizeof, c_void_p, c_char_p, c_byte, c_ubyte, c_short, c_ushort, c_int, c_uint, c_long, c_ulong, c_longlong, c_ulonglong, c_float, c_double
  from ._support import _CData, PyCPointerType, Py_TPFLAGS_DISALLOW_INSTANTIATION, Py_TPFLAGS_IMMUTABLETYPE
label_desc: Use image node_id 7 for calling the PointersTestCase obj's underlying member method code with example usage: obj.test_basics() without return types