new_contents: try:
      from uio import StringIO
      import ujson as json
  except:
      from io import StringIO
      import json
  
  print(json.load(StringIO('null')))
  print(json.load(StringIO('"abc\\u0064e"')))
  print(json.load(StringIO('[false, true, 1, -2]')))
  print(json.load(StringIO('{"a":true}')))
  
subject: Add test for ujson.load().