Attributes {
    gid {
        Int32 gridtype 0;
        String units "unitless";
    }
    int_dgid {
        String PGtype "varchar";
        String long_name "$partialdiff sub gid$ ISO 2 Letter Country code";
        String units "ids";
    }
NC_GLOBAL {
    String Conventions "IRIDL";
}
}