@classmethod
def serialize_attributions(cls, attributions, resolve_pronouns=False):
    """
        This accepts an iterable of Attribution objects, and produces
        an HTML page that visualizes them.
        """
    dom, body = cls.prepare_dom()
    for attribution in attributions:
        attribution_element = cls.get_attribution_element(attribution,
            resolve_pronouns)
        body.appendChild(attribution_element)
    return dom.toprettyxml(indent='  ')
