code: func (z *Node) Msgsize() (s int) {
  	s = 1 + 5 + msgp.StringPrefixSize + len(z.Path) + 5 + msgp.BoolSize + 5 + msgp.ArrayHeaderSize
  	for za0001 := range z.Defs {
  		s += z.Defs[za0001].Msgsize()
  	}
  	s += 12 + msgp.BoolSize
  	return
  }
docs: // Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message