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      </svg></a> </h2>
<section aria-labelledby="toc_models">
<p>Models represent persistent state.</p>
<p>For example, a property rentals application would want to save the details of a rental when a user publishes it, and so a rental would have a model defining its details, perhaps called the <em>rental</em> model.</p>
<p>A model typically persists information to a web server, although models can be configured to save to anywhere else, such a