--- /dev/null
+<?php
+
+namespace Drupal\libraries\ExternalLibrary\Utility;
+
+/**
+ * Provides an interface for classes giving access to a library.
+ */
+interface LibraryAccessorInterface {
+
+ /**
+ * Returns the library.
+ *
+ * @return \Drupal\libraries\ExternalLibrary\LibraryInterface
+ * The library.
+ */
+ public function getLibrary();
+
+}