package Model::Conf;

use Exporter;
use base 'Exporter'; 

our @EXPORT = qw( $conf );

our $conf = { 'somevar' => 'somevalue' };

$conf->{'foo'} = bar();


sub bar() { return 'bar'; }

1;
  

##</code><code>##

package Model::Conf;

use Exporter;
use base 'Exporter'; 

our @EXPORT = qw( $conf );

our $conf = { 'somevar' => 'somevalue' };

$conf->{'foo'} = bar() unless $conf->{'foo'};

sub bar() { return 'bar'; }

1;