--- /dev/null
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface TPCTLObjectiveC : NSObject
+
++ (BOOL)catchNSException:(void(^)(void))block error:(NSError**)error;
++ (NSString* _Nullable)jsonSerialize:(id)something error:(NSError**)error;
+
+@end
+
+NS_ASSUME_NONNULL_END