code: def test_inplace_string(self):
      ts = self.ts
      self.assertEqual(ts.T_STRING_INPLACE, "hi")
      self.assertRaises(TypeError, setattr, ts, "T_STRING_INPLACE", "s")
      self.assertRaises(TypeError, delattr, ts, "T_STRING_INPLACE")
  
imports: import unittest
  from test.support import import_helper
  from test.support import warnings_helper
  from _testcapi import _test_structmembersType_OldAPI, _test_structmembersType_NewAPI, CHAR_MAX, CHAR_MIN, UCHAR_MAX, SHRT_MAX, SHRT_MIN, USHRT_MAX, INT_MAX, INT_MIN, UINT_MAX, LONG_MAX, LONG_MIN, ULONG_MAX, LLONG_MAX, LLONG_MIN, ULLONG_MAX, PY_SSIZE_T_MAX, PY_SSIZE_T_MIN
label_desc: Use image node_id 10 for calling the ReadWriteTests obj's underlying member method code with example usage: obj.test_inplace_string() without return types