code: def next_page(self, timeout=None, stream=None):
          
          if not self.continuation:
              raise ValueError("Cannot get next index page, no continuation")
  
          if stream is not None:
              self.stream = stream
  
          args = {'bucket': self.bucket,
                  'index': self.index,
                  'startkey': self.startkey,
                  'endkey': self.endkey,
                  'return_terms': self.return_terms,
                  'max_results': self.max_results,
                  'continuation': self.continuation,
                  'timeout': timeout,
                  'term_regex': self.term_regex}
  
          if self.stream:
              return self.client.stream_index(**args)
          else:
              return self.client.get_index(**args)
docs: Fetches the next page using the same parameters as the
          original query.
  
          Note that if streaming was used before, it will be used again
          unless overridden.
  
          :param stream: whether to enable streaming. `True` enables,
              `False` disables, `None` uses previous value.
          :type stream: boolean
          :param timeout: a timeout value in milliseconds, or 'infinity'
          :type timeout: int