code: def risearch(self):
          "instance of :class:`eulfedora.api.ResourceIndex`, with the same root url and credentials"
          if self._risearch is None:
              self._risearch = ResourceIndex(self.fedora_root, self.username, self.password)
          return self._risearcf risearch(self):
          "instance of :class:`eulfedora.api.ResourceIndex`, with the same root url and credentials"
          if self._risearch is None:
              self._risearch = ResourceIndex(self.fedora_root, self.username, self.password)
          return self._risearch
docs: instance of :class:`eulfedora.api.ResourceIndex`, with the same root url and credentials