* <pre>
     * message: Login failed.
     * comment:
     * /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
     * five framework-embedded messages (don't change key names)
     * - - - - - - - - - -/
     * </pre>
     * @param property The property name for the message. (NotNull)
     * @return this. (NotNull)
     */

{\n  // This check is needed to avoid errors in case one of the elements isn't defined for any reason\n  if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {\n    return document.documentElement;\n  }\n\n  // Here we make sure to give as \"start\" the element that comes first in the DOM\n  const order =\n    element1.compareDocumentPosition(element2) &\n    Node.DOCUMENT_POSITION_FOLLOWING;\n  const start = order ? element1 : element2;\n  const end = order ? element2 : element1;\n\n...

        },

        },