NS_ASSUME_NONNULL_END Declaration#define NS_ASSUME_NONNULL_END See AlsoMacrosABSFOUNDATION_EXPORTFOUNDATION_EXTERNFOUNDATION_EXTERN_INLINEFOUNDATION_IMPORTFOUNDATION_STATIC_INLINEFOUNDATION_SWIFT_SDK_EPOCH_AT_LEASTMAXMINNS_ASSUME_NONNULL_BEGINNS_AUTOMATED_REFCOUNT_UNAVAILABLENS_AUTOMATED_REFCOUNT_WEAK_UNAVAILABLENS_AVAILABLENS_AVAILABLE_IOSNS_AVAILABLE_IPHONE