code: def sg_query_streamer(self, index):
          
  
          resp = self.sensor_graph.query_streamer(index)
          if resp is None:
              return [struct.pack("<L", _pack_sgerror(SensorGraphError.STREAMER_NOT_ALLOCATED))]
  
          return [struct.pack("<LLLLBBBx", *resp)]
docs: Query the current status of a streamer.