long ret = bindings.NetworkGraph_new(genesis_hash);
NetworkGraph ret_hu_conv = new NetworkGraph(null, ret);
ret_hu_conv.ptrs_to.add(ret_hu_conv);
long ret = bindings.NetworkGraph_new(genesis_hash);
NetworkGraph ret_hu_conv = new NetworkGraph(null, ret);
ret_hu_conv.ptrs_to.add(ret_hu_conv);