In theory should never be needed, but use in case you get errors about corrupted environments. You should only use this if you get an error telling you to use it.
repair_environments(x, interactive.mode = interactive())a unitizer object
either a unitizer, or a store id (see unitize)
logical(1L) whether to run in interactive mode ( request user input when needed) or not (error if user input is required, e.g. if all tests do not pass).
If you pass a store id this will re-save the repaired unitizer to
the location specified by the store id.
unitize