code: def test_decimal(self):
      rval = self.loads("1.1", parse_float=decimal.Decimal)
      self.assertTrue(isinstance(rval, decimal.Decimal))
      self.assertEqual(rval, decimal.Decimal("1.1"))
  
imports: import decimal
  from io import StringIO
  from collections import OrderedDict
  from test.test_json import PyTest, CTest
  from test import support
label_desc: Use image node_id 1 for calling the TestDecode obj's underlying member method code with example usage: obj.test_decimal() without return types