code: func authFieldSize(f []byte) int {
  	size := len(f)
  	if size >= 250 {
  		// - different indicators compared to db field handling
  		// - 1-5 bytes? but only 1 resp 3 bytes explained
  		panic("not implemented error")
  	}
  	return size + 1 //length indicator size := 1
  }
docs: //helper