--- /dev/null
+/*
+ * Copyright 2017 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import <Foundation/Foundation.h>
+
+/**
+ * Swizzle remote-notification callbacks to invoke FIRMessaging methods
+ * before calling original implementations.
+ */
+@interface FIRMessagingRemoteNotificationsProxy : NSObject
+
+/**
+ * Checks the `FirebaseAppDelegateProxyEnabled` key in the App's Info.plist. If the key is
+ * missing or incorrectly formatted, returns `YES`.
+ *
+ * @return YES if the Application Delegate and User Notification Center methods can be swizzled.
+ * Otherwise, returns NO.
+ */
++ (BOOL)canSwizzleMethods;
+
+/**
+ * Swizzles Application Delegate's remote-notification callbacks and User Notification Center
+ * delegate callback, and invokes the original selectors once done.
+ */
++ (void)swizzleMethods;
+
+@end