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Diffstat (limited to 'Firebase/Messaging/Public/FIRMessaging.h')
-rw-r--r--Firebase/Messaging/Public/FIRMessaging.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/Firebase/Messaging/Public/FIRMessaging.h b/Firebase/Messaging/Public/FIRMessaging.h
index d3fdf59..479f68e 100644
--- a/Firebase/Messaging/Public/FIRMessaging.h
+++ b/Firebase/Messaging/Public/FIRMessaging.h
@@ -476,7 +476,7 @@ NS_SWIFT_NAME(Messaging)
* In case of success, nil error is returned. Otherwise, an
* appropriate error object is returned.
*/
-- (void)subscribeToTopic:(NSString *)topic
+- (void)subscribeToTopic:(nonnull NSString *)topic
completion:(nullable FIRMessagingTopicOperationCompletion)completion;
/**
@@ -494,7 +494,7 @@ NS_SWIFT_NAME(Messaging)
* In case of success, nil error is returned. Otherwise, an
* appropriate error object is returned.
*/
-- (void)unsubscribeFromTopic:(NSString *)topic
+- (void)unsubscribeFromTopic:(nonnull NSString *)topic
completion:(nullable FIRMessagingTopicOperationCompletion)completion;
#pragma mark - Upstream