code: func FromReader(r io.Reader) (*Model, error) {
  	model := new(Model)
  	d := json.NewDecoder(r)
  	err := d.Decode(model)
  	if err != nil {
  		return nil, err
  	}
  	model.updateSuffixArr()
  	return model, nil
  }
docs: // FromReader loads a model from a Reader