#!/usr/bin/perl -w
use strict;

=head1 Name

=head1 Description

=cut

...
your code

=head2 Methods

=item method_1()
..... description

=cut
sub method_1 {
    ...
}

=item method_2 {

=cut
sub method_2 {
    ...
}

=back

=head1 AUTHOR

=cut