code: public void unloadModule(ModuleIdentifier revisionId) {
          Objects.requireNonNull(revisionId, "revisionId");
          Module module = findLoadedModule(revisionId);
          if (module != null) {
              unloadModule(module);
          }
      }
docs: Unload the given revision of a module from the local repository.
  @param revisionId {@link ModuleIdentifier} of the revision to unload