Initial Drupal 11 with DDEV setup

web/core/modules/image/src/Attribute/ImageEffect.php

@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\image\Attribute;
+
+use Drupal\Component\Plugin\Attribute\Plugin;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+/**
+ * Defines an ImageEffect attribute for plugin discovery.
+ *
+ * Plugin Namespace: Plugin\ImageEffect
+ *
+ * For a working example, see
+ * \Drupal\image\Plugin\ImageEffect\ResizeImageEffect
+ *
+ * @see hook_image_effect_info_alter()
+ * @see \Drupal\image\ConfigurableImageEffectInterface
+ * @see \Drupal\image\ConfigurableImageEffectBase
+ * @see \Drupal\image\ImageEffectInterface
+ * @see \Drupal\image\ImageEffectBase
+ * @see \Drupal\image\ImageEffectManager
+ * @see \Drupal\Core\ImageToolkit\Attribute\ImageToolkitOperation
+ * @see plugin_api
+ */
+#[\Attribute(\Attribute::TARGET_CLASS)]
+class ImageEffect extends Plugin {
+
+  /**
+   * Constructs an ImageEffect attribute.
+   *
+   * @param string $id
+   *   The plugin ID.
+   * @param \Drupal\Core\StringTranslation\TranslatableMarkup $label
+   *   The human-readable name of the image effect.
+   * @param \Drupal\Core\StringTranslation\TranslatableMarkup|null $description
+   *   (optional) A brief description of the image effect. This will be shown
+   *   when adding or configuring this image effect.
+   * @param class-string|null $deriver
+   *   (optional) The deriver class.
+   */
+  public function __construct(
+    public readonly string $id,
+    public readonly TranslatableMarkup $label,
+    public readonly ?TranslatableMarkup $description = NULL,
+    public readonly ?string $deriver = NULL,
+  ) {}
+
+}