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-rw-r--r--SmartDeviceLink/SDLFunctionID.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/SmartDeviceLink/SDLFunctionID.h b/SmartDeviceLink/SDLFunctionID.h
index f50eb01f7..7cb9d6cb1 100644
--- a/SmartDeviceLink/SDLFunctionID.h
+++ b/SmartDeviceLink/SDLFunctionID.h
@@ -8,11 +8,15 @@
#import "SDLNames.h"
#import "NSNumber+NumberType.h"
+NS_ASSUME_NONNULL_BEGIN
+
@interface SDLFunctionID : NSObject
+ (instancetype)sharedInstance;
-- (SDLName)functionNameForId:(int)functionID;
-- (NSNumber<SDLInt> *)functionIdForName:(SDLName)functionName;
+- (nullable SDLName)functionNameForId:(int)functionID;
+- (nullable NSNumber<SDLInt> *)functionIdForName:(SDLName)functionName;
@end
+
+NS_ASSUME_NONNULL_END