Creates a new RRSet in the specified zone.

        Arguments:
        zone_name -- The zone that will contain the new RRSet.  The trailing dot is optional.
        rtype -- The type of the RRSet.  This can be numeric (1) or
                 if a well-known name is defined for the type (A), you can use it instead.
        owner_name -- The owner name for the RRSet.
                      If no trailing dot is supplied, the owner_name is assumed to be relative (foo).
                      If a trailing dot is supplied, the owner name is assumed to be absolute (foo.zonename.com.)
        ttl -- The TTL value for the RRSet.
        rdata -- The BIND data for the RRSet as a string.
                 If there is a single resource record in the RRSet, you can pass in the single string.
                 If there are multiple resource records  in this RRSet, pass in a list of strings.

def create_rrset(self, zone_name, rtype, owner_name, ttl, rdata):
        """Creates a new RRSet in the specified zone.

        Arguments:
        zone_name -- The zone that will contain the new RRSet.  The trailing dot is optional.
        rtype -- The type of the RRSet.  This can be numeric (1) or
                 if a well-known name is defined for the type (A), you can use it instead.
        owner_name -- The owner name for the RRSet.
                      If no trailing dot is supplied, the owner_name is assumed to be relative (foo).
                      If a trailing dot is supplied, the owner name is assumed to be absolute (foo.zonename.com.)
        ttl -- The TTL value for the RRSet.
        rdata -- The BIND data for the RRSet as a string.
                 If there is a single resource record in the RRSet, you can pass in the single string.
                 If there are multiple resource records  in this RRSet, pass in a list of strings.

        """
        if type(rdata) is not list:
            rdata = [rdata]
        rrset = {"ttl": ttl, "rdata": rdata}
        return self.rest_api_connection.post("/v1/zones/" + zone_name + "/rrsets/" + rtype + "/" + owner_name, json.dumps(rrset))