customization point constrains
            user defined types to very limited implementation strategies. For example,
            there is no way to represent an HTTP message body as a filename with
            accompanying algorithms to store or retrieve data from the file system.
          </li>
</ul></div>
<p>
        This representation addresses a narrow range of use cases. It has limited
        potential for customization and performance. It is more difficult to use
        because it excludes the st