#C7_L8" id=C7_L8></a><a href="#C7_L9" id=C7_L9></a><a href="#C7_L10" id=C7_L10></a><a href="#C7_L11" id=C7_L11></a></span></code></pre></div>
<p>A transform has two functions: <code>serialize</code> and <code>deserialize</code>. Deserialization
converts a value to a format that the client expects. Serialization does the
reverse and converts a value to the format expected by the persistence layer.</p>
<p>You would use the custom <code>dollars</code> transform like this:</p>
<div class="filename javascript"><