+<?php
+
+namespace Drupal\metatag_twitter_cards\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Twitter Cards image height metatag.
+ *
+ * @MetatagTag(
+ * id = "twitter_cards_image_height",
+ * label = @Translation("Image height"),
+ * description = @Translation("The height of the image being linked to, in pixels."),
+ * name = "twitter:image:height",
+ * group = "twitter_cards",
+ * weight = 7,
+ * type = "integer",
+ * secure = FALSE,
+ * multiple = FALSE
+ * )
+ */
+class TwitterCardsImageHeight extends MetaNameBase {
+}