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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def to_dict(self, delimiter=DEFAULT_DELIMITER, dict_type=collections.OrderedDict):
 """ Get the dictionary representation of the current parser. :param str delimiter: The delimiter used for nested dictionaries, defaults to ":", optional :param class dict_type: The dictionary type to use for building the dictionary reperesentation, defaults to collections.OrderedDict, optional :return: The dictionary representation of the parser instance :rtype: dict """


        root_key = self.sections()[0]
        return self._build_dict(
            self._sections, delimiter=delimiter, dict_type=dict_type
        ).get(root_key, {})