JSON Sugar and other Goodness
This also works if a struct has more than one member.
In general, any JSON object can be expressed as a collection of path-leaf pairs without using any curly braces.
foldany.cue:
outer middle1 inner: 3 outer middle2 inner: 7
$ cue export foldany.cue
{ "outer": { "middle1": { "inner": 3 }, "middle2": { "inner": 7 } } }