code: def loads(s,
            parser_params=JSONParserParams(),
            object_builder_params=PythonObjectBuilderParams()):
      
      parser = JSONParser(parser_params)
      listener = ObjectBuilderParserListener(object_builder_params)
      parser.parse(s, listener)
      return listener.result
docs: Loads a json string as a python object hierarchy just like the standard json.loads(). Unlike
      the standard json.loads() this function uses OrderedDict instances to represent json objects
      but the class of the dictionary to be used is configurable.
      :param s: The json string to load.
      :params parser_params: Parser parameters.
      :type parser_params: JSONParserParams
      :param object_builder_params: Parameters to the ObjectBuilderParserListener, these parameters
      are mostly factories to create the python object hierarchy while parsing.