def METHOD_NAME(wikis):
    for wiki in wikis.wikis:
        print(u"Fetching Special Page and File alias for %s" % wiki.lang)
        url = u"https://%s.wikipedia.org/w/api.php" % wiki.lang + \
              u"?action=query&meta=siteinfo&format=json&siprop=namespaces"
        data = json.loads(requests.get(url).text)
        # according to https://www.mediawiki.org/wiki/Manual:Namespace
        # -1 seems to be the ID for Special Pages
        wiki.props[u"special_alias"] = data[u"query"][u"namespaces"][u"-1"][u"*"]
        # 6 is the ID for File pages
        wiki.props[u"file_alias"] = data[u"query"][u"namespaces"][u"6"][u"*"]
    return wikis