code: public static boolean isMetaDataMultiLine(final String key) {
          return isNullOrEmpty(key) ? false : key.equalsIgnoreCase(CommonConstants.CS_PUBLICAN_CFG_TITLE) || key.equalsIgnoreCase(
                  CommonConstants.CS_ENTITIES_TITLE) || CSConstants.CUSTOM_PUBLICAN_CFG_PATTERN.matcher(key).matches();
      }
docs: Checks if a line is a multiple line metadata node. These are the elements that are classed as multiple line metadata elements:
  <ul>
  <li>publican.cfg</li>
  <li>&lt;NAME&gt;-publican.cfg</li>
  <li>Entities</li>
  <li>Abstract</li>
  <li>Description</li>
  </ul>
  
  @param key The key of the metadata line.
  @return True if it should be parsed as a multiple line node, otherwise false.