test for Graphviz

<graphviz dot center > digraph finite_state_machine {

node [shape = box];
AssetSyncer -> FileSendTransporter;
AssetSyncer -> FileReceiveTransporter;

//rankdir=LR;
//size="9,5"
//node [shape = doublecircle]; LR_0 LR_3 LR_4 LR_8;
//node [shape = circle];
//LR_0 -> LR_2 [ label = "SS(B)" ];

} </graphviz>