ok, that's probably what I needed to hear.

I just confirmed this with a test:

package Test::Class;

use strict;
use warnings;
 
sub new {
    my ($className, $config) = @_;

    my $self = {};
    bless $self, $className;

    $self->{config} = \%{$config};

    return $self;
}

sub doSomething {
    my ($self, $what) = @_;

    print $self->{config}->{$what} . "\n";;
}

1;
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and the caller:

#!/usr/bin/env perl 

use strict;
use warnings;

use lib '.';
use Test::Class;

my $t = Test::Class->new( { name => 'bob', } );
$t->doSomething('name');
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...no need for noisy Exporter/@ISA nonsense. Nice and clean.

/me raises tankard!