NotificationGuts test

Test: integration_test android.platform.test.scenario.notification.NotificationGuts
Bug: 139609145
Change-Id: Id800d0c7572acb7e6a3d73fe92f43caed8c1b1a8
diff --git a/libraries/app-helpers/interfaces/handheld/src/android/platform/helpers/INotificationHelper.java b/libraries/app-helpers/interfaces/handheld/src/android/platform/helpers/INotificationHelper.java
index cada5da..bda8aaf 100644
--- a/libraries/app-helpers/interfaces/handheld/src/android/platform/helpers/INotificationHelper.java
+++ b/libraries/app-helpers/interfaces/handheld/src/android/platform/helpers/INotificationHelper.java
@@ -78,4 +78,22 @@
     public default void openNotificationByTitle(String title, String expectedPkg) {
         throw new UnsupportedOperationException("Not yet implemented.");
     }
+
+    /**
+     * Long press on notification to show its hidden menu (a.k.a. guts)
+     *
+     * @param notification Notification.
+     */
+    default void showGuts(UiObject2 notification) {
+        throw new UnsupportedOperationException("Not yet implemented.");
+    }
+
+    /**
+     * Taps the "Done" button on the notification guts.
+     *
+     * @param notification Notification.
+     */
+    default void hideGuts(UiObject2 notification) {
+        throw new UnsupportedOperationException("Not yet implemented.");
+    }
 }