#C2_L20" id=C2_L20></a><a href="#C2_L21" id=C2_L21></a><a href="#C2_L22" id=C2_L22></a><a href="#C2_L23" id=C2_L23></a><a href="#C2_L24" id=C2_L24></a></span></code></pre></div>
<p>Also note, how both creating a record and updating properties on the record through the <code>levelUp</code> method requires
us to wrap these operations into a <code>run</code> function. You can read more the Ember run loop <a href="../../applications/run-loop/">over here</a>.</p>
<h2 id="toc_testing-relationships">Testing Relati