code: def multi_bulk(self, args):
          '''Multi bulk encoding for list/tuple ``args``
          '''
          return null_array if args is None else b''.join(self._pack(args)f multi_bulk(self, args):
          '''Multi bulk encoding for list/tuple ``args``
          '''
          return null_array if args is None else b''.join(self._pack(args))
docs: Multi bulk encoding for list/tuple ``args``