code: def test_decoder_optimizations(self):
      # Several optimizations were made that skip over calls to
      # the whitespace regex, so this test is designed to try and
      # exercise the uncommon cases. The array cases are already covered.
      rval = self.loads('{   "key"    :    "value"    ,  "k":"v"    }')
      self.assertEqual(rval, {"key": "value", "k": "v"})
  
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 5 for calling the TestDecode obj's underlying member method code with example usage: obj.test_decoder_optimizations() without return types