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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def createZone(self, zone, zoneFile=None, callback=None, errback=None, **kwargs):
 """ Create a new zone, and return an associated high level Zone object. Several optional keyword arguments are available to configure the SOA record. If zoneFile is specified, upload the specific zone definition file to populate the zone with. :param str zone: zone name, like 'example.com' :param str zoneFile: absolute path of a zone file :keyword int retry: retry time :keyword int refresh: refresh ttl :keyword int expiry: expiry ttl :keyword int nx_ttl: nxdomain TTL :rtype: :py:class:`ns1.zones.Zone` """

        import ns1.zones
        zone = ns1.zones.Zone(self.config, zone)
        return zone.create(zoneFile=zoneFile, callback=callback,
                           errback=errback, **kwargs)