code: async def create(self, name, slaves):
          
          # NOTE: codectype and codecbitrate were simply chosen from an example..
          res = await self.call("X_Start", GroupMode="GROUP",
                                GroupName=name,
                                SlaveList=",".join(slaves),
                                CodecType=0x0040,
                                CodecBitrate=0x0003)
          return res
docs: Create a group.