code: def test_integers(self):
      class FloatLike:
          def __float__(self):
              return 2.0
  
      f = FloatLike()
  
      class IntLike:
          def __int__(self):
              return 2
  
      d = IntLike()
  
      class IndexLike:
          def __index__(self):
              return 2
  
      i = IndexLike()
      # integers cannot be constructed from floats,
      # but from integer-like objects
      for t in signed_types + unsigned_types:
          self.assertRaises(TypeError, t, 3.14)
          self.assertRaises(TypeError, t, f)
          self.assertRaises(TypeError, t, d)
          self.assertEqual(t(i).value, 2)
  
imports: import array
  import struct
  import sys
  import unittest
  from operator import truth
  from ctypes import byref, sizeof, alignment, c_char, c_byte, c_ubyte, c_short, c_ushort, c_int, c_uint, c_long, c_ulong, c_longlong, c_ulonglong, c_float, c_double, c_longdouble, c_bool
label_desc: Use image node_id 9 for calling the NumberTestCase obj's underlying member method code with example usage: obj.test_integers() and returns: int, int, int