code: def test_from_param(self):
      # the from_param class method attribute always
      # returns PyCArgObject instances
      for t in signed_types + unsigned_types + float_types:
          self.assertEqual(ArgType, type(t.from_param(0)))
  
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 6 for calling the NumberTestCase obj's underlying member method code with example usage: obj.test_from_param() without return types