validation of image and countrycode

vaidate.php

<?php

// add into AppServiceProvider::register()
Validator::extend('imageable', function ($attribute, $value, $params, $validator) {
    try {
        ImageManagerStatic::make($value);
        return true;
    } catch (\Exception $e) {
        return false;
    }
});

Validator::extend('countrycode', function ($attribute, $value, $params, $validator) {
    return in_array(strtoupper($value), array_keys(Codes::$countries));            
});
//================//
//  Usage         //
//================//
$this->validate($request, [
    'avatar' => 'imageable', // allow base64, all image type, averyting that can be an image.
    'country_code' => 'countrycode'
]);