code: def register_disco_cache_fetchers(cache_suite,stream):
      
      tmp=stream
      class DiscoInfoCacheFetcher(DiscoCacheFetcherBase):
          """Cache fetcher for DiscoInfo."""
          stream=tmp
          disco_class=DiscoInfo
      class DiscoItemsCacheFetcher(DiscoCacheFetcherBase):
          """Cache fetcher for DiscoItems."""
          stream=tmp
          disco_class=DiscoItems
      cache_suite.register_fetcher(DiscoInfo,DiscoInfoCacheFetcher)
      cache_suite.register_fetcher(DiscoItems,DiscoItemsCacheFetcher)
docs: Register Service Discovery cache fetchers into given
      cache suite and using the stream provided.
  
      :Parameters:
          - `cache_suite`: the cache suite where the fetchers are to be
            registered.
          - `stream`: the stream to be used by the fetchers.
      :Types:
          - `cache_suite`: `cache.CacheSuite`
          - `stream`: `pyxmpp.stream.Stream`