code: def stream_info(self):
          
          accum = {}
          for key in self.keys:
              accum[key] = self.database.xinfo_stream(key)
          return accum
docs: Retrieve information for each stream managed by the consumer group.
          Calls :py:meth:`~Database.xinfo_stream` for each stream.
  
          :returns: a dictionary mapping stream key to a dictionary of metadata