             group.notify(completionBlock)
         }
     }
+    
+    /**:name: Map operations */
     
     /**
         Executes the mapping block concurrently for each element in array. This method will wait for all

        super.init(queue: queue)
    }
    
    
    /**
        Dispatches a barrier block asynchronously on this queue. This method will return immediately.

        dispatch_barrier_sync(queue, block)
    }
    
    
    /**:name: Iterations */
    
    /**
        Executes the block on this queue for number of iterations passed to it. The block may execute for
