%EXPORT_TAGS = (
    hdr_lens => [qw( 
            LIS_TIF_HDR_LEN     LIS_TIF_HDR_DATA_MAX    
            LIS_PHY_HDR_LEN     LIS_LR_HDR_LEN  
    )],
    phyhdr_flags => [qw( . . . . )],
    lr_types     => [qw( . . . . )],
        #  . . . . 
);
$EXPORT_TAGS{'all'} = [map {@$_} values %EXPORT_TAGS];