def meta(self, type):
        """Retreived meta information of a format.

        :param meta: The extra information associated with the format
        """
        try:
            return self.registered_formats[type].get('meta')
        except KeyError:
            raise NotImplementedError("No format registered with type "
                                      "'{type}'".format(type=type))
Retreived meta information of a format.

        :param meta: The extra information associated with the format