object
method acceptor_name : (string * Netsys_gssapi.oid) option
method flags : (Netsys_gssapi.req_flag * Netsys_gssapi.support_level) list
method integrity : Netsys_gssapi.support_level
method mech_types : Netsys_gssapi.oid list
method privacy : Netsys_gssapi.support_level
end
