@rdodev, @dian4554: What I kind of want to do here is "save" an env var with the created load balancer ID:

```bash
export LOAD_BALANCER_ID="{loadBalancerId}" # From loadBalancer.id
```

... and then use it later instead of the ID placeholder:

```bash
curl -s -X POST $ENDPOINT/loadbalancers/$LOAD_BALANCER_ID/nodes \
  # ...
```

It's certainly closer to the way I actually do things to test them, and it's no less clear, but it is inconsistent with the rest of the `shell` docs: most of the others use `{placeHolders}` instead. What do you think?