ComplexTestType.php

<?php

namespace Drupal\workflow_type_test\Plugin\WorkflowType;

use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\workflows\Attribute\WorkflowType;
use Drupal\workflows\Plugin\WorkflowTypeBase;

/**
 * Test workflow type.
 */
class ComplexTestType extends WorkflowTypeBase {
  use StringTranslationTrait;
  
  /**
   * {@inheritdoc}
   */
  public function onDependencyRemoval(array $dependencies) {
    // Always return TRUE to allow the logic in
    // \Drupal\workflows\Entity\Workflow::onDependencyRemoval() to be tested.
    return TRUE;
  }
  
  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return parent::defaultConfiguration() + [
      'example_setting' => '',
    ];
  }

}