use Some::Module;

##</code><code>##

bin/
    script.pl
lib/
    Some/
        Module.pm

##</code><code>##

package Some::Module;

use strict;
use warnings;

our $VERSION = '0.001';

use Exporter 'import';
our @EXPORT_OK = qw{isnum isint isfloat};
our %EXPORT_TAGS = (all => [@EXPORT_OK]);

sub isnum { ... }
sub isint { ... }
sub isfloat { ... }

1;