then

Connects this node to node and returns node, so a chain continues from it.

Fans out to each node in targets so they run concurrently, as in a then nodes(b, c). Returns targets, which joinTo connects to a JoinNode to continue once they all complete.

Fans out by connecting this node to each of targets, such as a computed list, and returns them as a NodeGroup, like then(nodes(...)). An empty collection adds no edges.

Fans out by connecting this node to first, second, and each node in rest so they run concurrently, as in a.then(b, c). Returns them as a NodeGroup for joinTo. Infix chains still need a then nodes(b, c) because an infix call takes one argument.

Completes this routed edge at node and returns node, so a chain continues from it.