code: public void setButtonLabelInfo(String encodedLabelInfo) {
          CommandButtonLabelInfo newLabelInfo = CommandButtonLabelInfo.valueOf(encodedLabelInfo);
          setLabelInfo(newLabelInfo);
      }
docs: Sets the label information for the command using the given encoded label descriptor.
  
  @param encodedLabelInfo The encoded label descriptor. May be null or empty.
  
  @see CommandButtonLabelInfo#valueOf(String)