# File lib/fog/network/openstack/models/ipsec_site_connection.rb, line 35
        def update
          requires :id, :name, :vpnservice_id, :ikepolicy_id, :ipsecpolicy_id,
                   :peer_address, :peer_id, :peer_cidrs, :psk
          merge_attributes(service.update_ipsec_site_connection(id,
                                                                attributes).body['ipsec_site_connection'])
          self
        end