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-(RACSignal*)fetchUserIdSignal {
   return [RACSignal createSignal:^(RACDisposable *(id subscriber) {
      [Client fetchUserIdSuccess:^(NSString *userId) {
          [subscriber sendNext:userId];
          [subscriber sendCompleted];
      } failure:^(NSError *error) {
          [subscriber sendError:error]
      }];
      return nil;
   }

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__weak typeof(self) weakSelf = self;
[blockExample  performComputation:buffer.audioBufferList completionHandler:^(NSArray *fftData, BOOL isEnd) {
  weakSelf.fftData = fftData;
  ... 
}];

...

__weak typeof(self) weakSelf = self;
[blockExample fetchImage:url sucess:^(UIImage *image) {

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typedef void (^GetImageSucess)(UIImage *image);
typedef void (^Failure) (NSError *error);

@interface BlockExample : NSObject

- (void)performComputation:(AudioBufferList *)bufferListInOut completionHandler:(void(^)(NSArray *fftData, BOOL isEnd))completion;
- (void)fetchImage:(NSURL *)imageURL sucess:(GetImageSucess)sucess failure:(Failure)failure;

@end

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@interface Paginator : NSObject
...
@property (nonatomic, weak) id<PaginatorDelegate> delegate;
...
@end

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@protocol PaginatorDelegate <NSObject>

- (void)paginator:(Paginator *)paginator didLoadNewContent:(NSArray *)items;

@optional
- (void)paginatorDidReachEnd:(Paginator *)paginator;

@end

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Using worker: worker-jupiter-brain:3971133a-0193-4941-8ae3-737e87ce1260 (f210c509-545e-4cee-8e61-652e8d864dde:)

travis_fold:start:system_info
Build system information

Build language: objective-c

travis_fold:end:system_info


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Using worker: worker-jupiter-brain:f2bb9259-0308-4812-82e5-56dff7d2d583 (e7a38367-a0cd-4ae0-835e-937a8144ee45:)

travis_fold:start:system_info
Build system information

Build language: objective-c

travis_fold:end:system_info


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awk '{ print length, $0 }' | sort -n -s | cut -d" " -f2-

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@interface KVOObjectTests : XCTestCase

@property (nonatomic) KVOObject *kVOObject;
@property (nonatomic) BOOL beenDealloc;
@property (nonatomic) id<AspectToken> aspectToken;

@end

- (void)setUp {
    [super setUp];

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// Your pull request, passed
method:
{
  return 3
}

test case: 
{
  method().is(3)
}