/**
  * @param array $entityAttributes
  * @param CustomerSetup $customerSetup
  * @return void
  */
 protected function upgradeAttributes(array $entityAttributes, CustomerSetup $customerSetup)
 {
     foreach ($entityAttributes as $entityType => $attributes) {
         foreach ($attributes as $attributeCode => $attributeData) {
             $attribute = $customerSetup->getEavConfig()->getAttribute($entityType, $attributeCode);
             foreach ($attributeData as $key => $value) {
                 $attribute->setData($key, $value);
             }
             $attribute->save();
         }
     }
 }