pub fn install_public_corpus(models_dir: &Path) -> Result<(), Error>Expand description
Install the bundled public slice into models_dir’s public-corpus
directory. Idempotent: a slice this binary wrote is left alone, and a
manifest it did not write is replaced by the bundled one.
First use installs it. A bench run over the public tier calls this before reading, so the corpus a machine scores is the one this binary carries rather than something it has to find.