+<?php
+
+namespace Drupal\libraries\ExternalLibrary\Utility;
+
+/**
+ * Provides a trait for classes giving access to a library ID.
+ */
+trait LibraryIdAccessorTrait {
+
+ /**
+ * The ID of the library.
+ *
+ * @var string
+ */
+ protected $libraryId;
+
+ /**
+ * Returns the ID of the library.
+ *
+ * @return string
+ * The library ID.
+ */
+ public function getLibraryId() {
+ return $this->libraryId;
+ }
+
+}