def update_record(self, domain, recordid, params=None):
        ''' /v1/dns/update_record
        POST - account
        Update a DNS record

        Link: https://www.vultr.com/api/#dns_update_record
        '''
        params = update_params(params, {
            'domain': domain,
            'RECORDID': recordid
        })
        return self.request('/v1/dns/update_record', params, 'POST')
/v1/dns/update_record
        POST - account
        Update a DNS record

        Link: https://www.vultr.com/api/#dns_update_record