" id=C19_L3></a><a href="#C19_L4" id=C19_L4></a><a href="#C19_L5" id=C19_L5></a><a href="#C19_L6" id=C19_L6></a><a href="#C19_L7" id=C19_L7></a><a href="#C19_L8" id=C19_L8></a><a href="#C19_L9" id=C19_L9></a><a href="#C19_L10" id=C19_L10></a><a href="#C19_L11" id=C19_L11></a></span></code></pre></div>
<p>This is exactly equivalent to the example above. You can think of the
function version as a shorthand for the longer class form if it does not
require any state.</p>
</section>
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