Alerts Google that the sitemap for the current site has been updated. If sitemap_url is provided, it should be an absolute path to the sitemap for this site -- e.g., '/sitemap.xml'. If sitemap_url is not provided, this function will attempt to deduce it by using urlresolvers.reverse
(sitemap_url=None, ping_url=PING_URL)
source not stored for this graph (policy: none)
nothing calls this directly
no test coverage detected