code: def test_char_from_address(self):
      a = array.array("b", [0])
      a[0] = ord("x")
      v = c_char.from_address(a.buffer_info()[0])
      self.assertEqual(v.value, b"x")
      self.assertIs(type(v), c_char)
  
      a[0] = ord("?")
      self.assertEqual(v.value, b"?")
  
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 14 for calling the NumberTestCase obj's underlying member method code with example usage: obj.test_char_from_address() without return types