Rename interfaces, unset after unwrapping

app/lib/Sage/Assets/ManifestInterface.php

@@ -0,0 +1,26 @@
+<?php namespace Roots\Sage\Assets;
+
+/**
+ * Interface ManifestInterface
+ * @package Roots\Sage
+ * @author QWp6t
+ */
+interface ManifestInterface {
+
+  /**
+   * Get the cache-busted filename
+   *
+   * If the manifest does not have an entry for $file, then return $file
+   *
+   * @param string $file The original name of the file before cache-busting
+   * @return string
+   */
+  public function get($file);
+
+  /**
+   * Get the asset manifest
+   *
+   * @return array
+   */
+  public function getAll();
+}