create_announced_chan_between_nodes(&nodes, 0, 2);
create_announced_chan_between_nodes(&nodes, 1, 3);
create_announced_chan_between_nodes(&nodes, 2, 3);
create_announced_chan_between_nodes(&nodes, 0, 2);
create_announced_chan_between_nodes(&nodes, 1, 3);
create_announced_chan_between_nodes(&nodes, 2, 3);