Yes the word *incremental* is redundant if you look at it this way. But there's also the `incremental.toStringInputHasher` method to consider. I think `toStringInputHasher` would be useful if it were a default import. So I thought people could import `incremental._` to get both `runIncremental` and `toStringInputHasher`. But there are other ways to slice this as well… (e.g. have an `Incremental` object to hold the main package logic.)