+<?php
+
+namespace Drupal\image_test\Plugin\ImageToolkit\Operation\test;
+
+use Drupal\Core\ImageToolkit\ImageToolkitOperationBase;
+
+/**
+ * Provides a base class for test operations.
+ */
+abstract class OperationBase extends ImageToolkitOperationBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function arguments() {
+ return [];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function execute(array $arguments) {
+ // Nothing to do.
+ }
+
+}