#import <Foundation/Foundation.h>

@protocol Proto
- (id)requirement;
@end

@interface Gizmo : NSObject
@property (nonatomic)NSString *stringProperty;
- (NSString*) modifyString: (NSString *)str withNumber: (NSInteger) num withFoobar: (id)foobar;
- (id) doSomething : (NSArray<NSString*>*) arr;
@end

@interface Gizmo2<ObjectType: id<Proto>> : NSObject
- (NSString*) doSomething;
@end

@protocol FooProto <NSObject>
@end

@protocol SomeGenericClass <FooProto>
@property (nonatomic, nullable, readonly, strong) NSString *version;
- (NSString*) doSomething;
- (id) doSomething2 : (NSArray<NSString*>*) arr;
@end

NS_ASSUME_NONNULL_BEGIN
@protocol Treeish <NSObject>
- (nullable NSArray *) treeishChildren;
@end
NS_ASSUME_NONNULL_END