def METHOD_NAME(self, index, args=[]):
    self.nodes[index] = start_node(index, self.options.tmpdir, extra_args=BASE_ARGS+args)
    connect_nodes_bi(self.nodes,0,1)
    connect_nodes_bi(self.nodes,1,2)
    connect_nodes_bi(self.nodes,0,2)
    self.sync_all()