code: def next_previous(self, photo, options=None, **kwds):
          
          option_string = self._build_option_string(options)
          result = self._client.get("/photo/%s/nextprevious%s.json" %
                                    (self._extract_id(photo), option_string),
                                    **kwds)["result"]
          value = {}
          if "next" in result:
              # Workaround for APIv1
              if not isinstance(result["next"], list): # pragma: no cover
                  result["next"] = [result["next"]]
  
              value["next"] = []
              for photo in result["next"]:
                  value["next"].append(Photo(self._client, photo))
  
          if "previous" in result:
              # Workaround for APIv1
              if not isinstance(result["previous"], list): # pragma: no cover
                  result["previous"] = [result["previous"]]
  
              value["previous"] = []
              for photo in result["previous"]:
                  value["previous"].append(Photo(self._client, photo))
  
          return value
docs: Endpoint: /photo/<id>/nextprevious[/<options>].json
  
          Returns a dict containing the next and previous photo lists
          (there may be more than one next/previous photo returned).
          The options parameter can be used to narrow down the photos
          Eg: options={"album": <album_id>}