   <p>A string representation of this object.</p>
          <p>
            Some classes have a default textual representation, often paired
            with a static <code>parse</code> function (like
            <a href="https://api.dart.dev/stable/3.7.1/dart-core/int/parse.html"
              >int.parse</a
            >). These classes will provide the textual representation as their
            string representation.
          </p>
          <p>
            Other classes have no meaningful textual repres