def description(self):
        """Obtain the description associated with the element.

        Raises:
            :class:`NoSuchAnnotation` if there is no associated description."""
        for e in self:
            if isinstance(e, Description):
                return e.value
        raise NoSuchAnnotation
Obtain the description associated with the element.

        Raises:
            :class:`NoSuchAnnotation` if there is no associated description.