OpenModalWizardCommand.php

<?php

namespace Drupal\ctools\Ajax;

use Drupal\Core\Ajax\OpenModalDialogCommand;

/**
 *
 */
class OpenModalWizardCommand extends OpenModalDialogCommand {
    
    /**
     *
     */
    public function __construct($object, $tempstore_id, array $parameters = [], array $dialog_options = [], $settings = NULL) {
        // Instantiate the wizard class properly.
        $parameters += [
            'tempstore_id' => $tempstore_id,
            'machine_name' => NULL,
            'step' => NULL,
        ];
        $form = \Drupal::service('ctools.wizard.factory')->getWizardForm($object, $parameters, TRUE);
        $title = $form['#title'] ?? '';
        $content = $form;
        parent::__construct($title, $content, $dialog_options, $settings);
    }

}