package Foo;
use v5.36;
use Exporter 'import';
our @EXPORT = qw/always_imported/;
our @EXPORT_OK = qw/optionally_imported/;

sub always_imported {
    say "Always imported.";
}
sub optionally_imported {
    say "Optionally imported.";
}
1;

##</code><code>##

#!/usr/bin/env perl
use v5.36;

use Foo;
always_imported; # works

##</code><code>##

#!/usr/bin/env perl
use v5.36;

use Foo qw/optionally_imported/;
always_imported; # bareword error ("always_imported" sub not defined)