code: func (f *Form) GetFormItemByLabel(label string) FormItem {
  	for _, item := range f.items {
  		if item.GetLabel() == label {
  			return item
  		}
  	}
  	return nil
  }
docs: // GetFormItemByLabel returns the first form element with the given label. If
  // no such element is found, nil is returned. Buttons are not searched and will
  // therefore not be returned.