--- /dev/null
+//
+// ANSCompatibility.h
+// AnswersKit
+//
+// Copyright (c) 2015 Crashlytics, Inc. All rights reserved.
+//
+
+#pragma once
+
+#if !__has_feature(nullability)
+#define nonnull
+#define nullable
+#define _Nullable
+#define _Nonnull
+#endif
+
+#ifndef NS_ASSUME_NONNULL_BEGIN
+#define NS_ASSUME_NONNULL_BEGIN
+#endif
+
+#ifndef NS_ASSUME_NONNULL_END
+#define NS_ASSUME_NONNULL_END
+#endif
+
+#if __has_feature(objc_generics)
+#define ANS_GENERIC_NSARRAY(type) NSArray<type>
+#define ANS_GENERIC_NSDICTIONARY(key_type,object_key) NSDictionary<key_type, object_key>
+#else
+#define ANS_GENERIC_NSARRAY(type) NSArray
+#define ANS_GENERIC_NSDICTIONARY(key_type,object_key) NSDictionary
+#endif