code: def get_packet_and_syns(self, b, compute, times=[], **kwargs):
          
          packet, new_syns = self._get_packet_and_syns(b, compute, times, **kwargs)
          for k,v in kwargs.items():
              packet[k] = v
  
          packet['b'] = b.to_json() if mpi.enabled else b
          packet['compute'] = compute
          packet['backend'] = self.__class__.__name__
  
          return packet, new_syns
docs: get_packet is called by the master and must get all information necessary
          to send to all workers.  The returned packet will be passed on as
          _run_chunk(**packet) with the following exceptions:
  
          * b: the bundle will be included in the packet serialized
          * compute: the label of the compute options will be included in the packet
          * backend: the class name will be passed on in the packet so the worker can call the correct backend
          * all kwargs will be passed on verbatim