code: func (z SeriesByTarget) MarshalMsg(b []byte) (o []byte, err error) {
  	o = msgp.Require(b, z.Msgsize())
  	o = msgp.AppendArrayHeader(o, uint32(len(z)))
  	for zb0003 := range z {
  		o, err = z[zb0003].MarshalMsg(o)
  		if err != nil {
  			err = msgp.WrapError(err, zb0003)
  			return
  		}
  	}
  	return
  }
docs: // MarshalMsg implements msgp.Marshaler