End a hold now; the node goes back on its normal idle timer

End a node's hold now, putting it back on its normal idle timer: the node idles out its usual grace window and then stops. Use it the moment you know you are done thinking, so a hold you set generously does not bill to its full length. Idempotent - releasing a node that is not held returns its current state. This does not stop the node: stop_node is how you stop paying immediately.