TestFileUsage.php

<?php

namespace Drupal\service_provider_test;

use Drupal\file\FileInterface;
use Drupal\file\FileUsage\FileUsageBase;
class TestFileUsage extends FileUsageBase {
    
    /**
     * {@inheritdoc}
     */
    public function add(FileInterface $file, $module, $type, $id, $count = 1) {
    }
    
    /**
     * {@inheritdoc}
     */
    public function delete(FileInterface $file, $module, $type = NULL, $id = NULL, $count = 1) {
    }
    
    /**
     * {@inheritdoc}
     */
    public function listUsage(FileInterface $file) {
        return [];
    }

}