gistify711070.m

    RAC(cell, type) = [cluster map:^id(NSNumber *clusteringState) {
        switch ([clusteringState integerValue]) {
            case ClusterNone:
                NSLog(@"cluster state is Not Clustered for %@", device.name);
                break;
                
            case ClusterMaster:
                NSLog(@"cluster state is Clustered and master");
                break;
                
            case ClusterMasterPending:
                NSLog(@"cluster state is set to clustered master, but pending confirmation for %@", device.name);
                break;
                
            case ClusterSlave:
                NSLog(@"cluster state is clustered and slave for %@", device.name);
                break;
                
            case ClusterSlavePending:
                NSLog(@"cluster state is set to clustered slave, but pending confirmation for %@", device.name);
                break;
                
            default:
                break;
        }
        return clusteringState;
    }];