#!/usr/bin/perl -w
use strict;
use My::Module;

my $foo = "some string"
my $bar = Somefunction();

##</code><code>##

package My::Module;
our @EXPORT = qw/Somefunction/;
use Exporter;
our @ISA = qw/Exporter/;

sub Somefunction
{
   # do something;
}