nodes[1].node.handle_accept_channel(&nodes[2].node.get_our_node_id(), InitFeatures::known(), &accept_channel);
let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[1], &nodes[2].node.get_our_node_id(), 100_000, 42);
nodes[1].node.handle_accept_channel(&nodes[2].node.get_our_node_id(), InitFeatures::known(), &accept_channel);
let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[1], &nodes[2].node.get_our_node_id(), 100_000, 42);