- * - comment: Text before the opening share tag
- * - shared : Text inside the share tags
- * - author : (Optional) Display name of the shared author
- * - profile: (Optional) Profile page URL of the shared author
- * - avatar : (Optional) Profile picture URL of the shared author
- * - link : (Optional) Canonical URL of the shared post
- * - posted : (Optional) Date the shared post was initially posted ("Y-m-d H:i:s" in GMT)
- * - guid : (Optional) Shared post GUID if any
+ * - comment : Text before the opening share tag
+ * - shared : Text inside the share tags
+ * - author : (Optional) Display name of the shared author
+ * - profile : (Optional) Profile page URL of the shared author
+ * - avatar : (Optional) Profile picture URL of the shared author
+ * - link : (Optional) Canonical URL of the shared post
+ * - posted : (Optional) Date the shared post was initially posted ("Y-m-d H:i:s" in GMT)
+ * - message_id: (Optional) Shared post URI if any
+ * - guid : (Optional) Shared post GUID if any