with 'MooseX::Getopt::GLD';
+ # or
+
+ with 'MooseX::Getopt::GLD' => { getopt_conf => [ 'pass_through', ... ] };
+
has 'out' => (is => 'rw', isa => 'Str', required => 1);
has 'in' => (is => 'rw', isa => 'Str', required => 1);
## on the command line
% perl my_app_script.pl -in file.input -out file.dump
+=head1 OPTIONS
+
+This role is a parameterized role. It accepts one configuration parameter,
+C<getopt_conf>. This parameter is an ArrayRef of strings, which are
+L<Getopt::Long> configuraion options (see "Configuring Getopt::Long" in
+L<Getopt::Long>)
+
=cut