"A good example is setting up state for integration tests; I'm not going to re-use any functions I create for that." And if it turns out I'm wrong about that,

"A good example is setting up state for integration tests; I'm not going to re-use any functions I create for that." And if it turns out I'm wrong about that, the braces provide a very nice, guaranteed cutting point in the future that anyone can understand without having to load all the context of the function. This isn't the sort of thing I want splattered all over a code base, but it is a nice niche tool.