Obj-C new literal types example.

gistfile1.m

// Before
NSMutableDictionary *mainDict = [[NSMutableDictionary alloc] init];		
[mainDict setObject:[NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:[NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:[NSNumber numberWithBool:false], serverBlob, nil] 
                                                                                                              forKeys:[NSArray arrayWithObjects:@"moreChangesAvailable", @"serverBlob", nil]], changes, nil] 
                                                forKeys:[NSArray arrayWithObjects:@"__sync", @"results", nil]] 
             forKey:@"d"];

// After
NSDictionary *mainDict = @{@"d":@{@"__sync":@{@"moreChangesAvailable":@0, @"serverBlob":serverBlob}, @"results":changes}};