interface NVList {
    unsigned long count( );
    void add(in CORBA::Flags flags);
    void add_item(in CORBA::Identifier name,
                  in CORBA::Flags flags);
    void add_value(in CORBA::Identifier name,
                   in any value,
                   in CORBA::Flags flags);
    CORBA::NamedValue item(in unsigned long index);
    void remove(in unsigned long index);
};