'Iterate over events on a network of repositories.
:param int number: (optional), number of events to return. Default: -1
returns all available events
:param str etag: (optional), ETag from a previous request to the same
endpoint
:returns: generator of :class:`Event <github3.events.Event>`\ s'

def network_events(self, number=(-1), etag=None):

    base = self._api.replace(u'repos', u'networks', 1)
    url = self._build_url(u'events', base_url=base)
    return self._iter(int(number), url, Event, etag)
