def METHOD_NAME(self, split=False):
    self.nodes = start_nodes(NUMB_OF_NODES, self.options.tmpdir,
                             extra_args=[['-logtimemicros=1', '-debug=py', '-debug=sc', '-debug=mempool', '-debug=cert', '-debug=bench',
                                          '-scproofqueuesize=0']] * NUMB_OF_NODES)
    connect_nodes_bi(self.nodes, 0, 1)
    self.is_network_split = split
    self.sync_all()