package MyRole;
use Moo::Role;
use constant INDEX_FOO => 42;
...

##</code><code>##

package MyClass;

use Method::Signatures;
use Moo;
use namespace::clean;

with 'MyRole';

my $aref = get_some_stuff();
my $thing = $aref->[ INDEX_FOO ];

...

##</code><code>##

Bareword "INDEX_FOO" not allowed while "strict subs" in use at ...