Laravel class translator does not exist in a configuration file

Is there any way that allows inserting translatable value in configuration file in laravel-5.4 application?

I have a custom configuration file at config/fox-reports.php and I'm trying to set a translatable configuration value looks like the following:

return [
    'attrs' => [
       'Product' => __('Product Title')
    ]
] 

When I run php artisan config:cache the following error is generated:

In Container.php line 729:

  Class translator does not exist

via Chebli Mohamed