'Clear existing user location information to stop notifications.
Arguments:
ifrom    -- Specify the sender\'s JID.
block    -- Specify if the send call will block until a response
is received, or a timeout occurs. Defaults to True.
timeout  -- The length of time (in seconds) to wait for a response
before exiting the send call if blocking is used.
Defaults to sleekxmpp.xmlstream.RESPONSE_TIMEOUT
callback -- Optional reference to a stream handler function. Will
be executed when a reply stanza is received.'

def stop(self, ifrom=None, block=True, callback=None, timeout=None):

    geoloc = Geoloc()
    return self.xmpp['xep_0163'].publish(geoloc, ifrom=ifrom, block=block, callback=callback, timeout=timeout)
