use strict;

package MyModule;

use Exporter::Easiest qw(
    :base => $base1 $base2
    :extra => $extra1 $extra2
    :bonus => $bonus1 $bonus2
    :useful => $extra1 $bonus1
    :useless => :extra :bonus !:useful
    :no_bonus => :all !:bonus
  EXPORT => :base
  ALL => all
  OK => $not_exported_by_default
);

$base1 = 1;
$base2 = 2;

...