docs: def loadable_modules(self):
          '''The list of loadable module profile dictionaries.'''
          with self._mutex:
              if not self._loadable_modules:
                  self._loadable_modules = []
                  for mp in self._obj.get_loadable_modules():
                      self._loadable_modules.append(utils.nvlist_to_dict(mp.properties))
          return self._loadable_modules