NotAvailableTestDumper.php

<?php

namespace Drupal\devel_dumper_test\Plugin\Devel\Dumper;

use Drupal\Component\Render\MarkupInterface;
use Drupal\devel\DevelDumperBase;

/**
 * Provides a NotAvailableTestDumper plugin.
 *
 * @DevelDumper(
 *   id = "not_available_test_dumper",
 *   label = @Translation("Not available test dumper."),
 *   description = @Translation("Drupal dumper for testing purposes (not available).")
 * )
 */
class NotAvailableTestDumper extends DevelDumperBase {
    
    /**
     * {@inheritdoc}
     */
    public function dump($input, $name = NULL) : void {
        $input = '<pre>' . $input . '</pre>';
        echo $input;
    }
    
    /**
     * {@inheritdoc}
     */
    public function export(mixed $input, ?string $name = NULL) : MarkupInterface|string {
        $input = '<pre>' . $input . '</pre>';
        return $this->setSafeMarkup($input);
    }
    
    /**
     * {@inheritdoc}
     */
    public static function checkRequirements() : bool {
        return FALSE;
    }

}