This function is only exported for use in hook scripts, but it's not intended to be called by the end-user directly.
roxygenize_with_cache(key, dirs)An optional object from which a hexadecimal hash code will be generated and appended to the filename.
A character vector constituting the path to the
     cache subdirectory (of the cache root directory
     as returned by getCacheRootPath()) to be used.
     If NULL, the path will be the cache root path.
Other hook script helpers: 
diff_requires_run_roxygenize(),
dirs_R.cache(),
may_require_permanent_cache(),
precommit_docopt(),
robust_purl(),
roxygen_assert_additional_dependencies()