code: def test_ushort_plus(self):
      self._dll.tf_bH.restype = c_ushort
      self._dll.tf_bH.argtypes = (c_byte, c_ushort)
      self.assertEqual(self._dll.tf_bH(0, 65535), 21845)
      self.assertEqual(self.U(), 65535)
  
imports: import _ctypes_test
  import ctypes
  import unittest
  from ctypes import CDLL, c_byte, c_ubyte, c_char, c_short, c_ushort, c_int, c_uint, c_long, c_ulong, c_longlong, c_ulonglong, c_float, c_double, c_longdouble
label_desc: Use image node_id 10 for calling the CFunctions obj's underlying member method code with example usage: obj.test_ushort_plus() without return types