e></a>, <a href="/vision.learner.html#unet_learner"><code>unet_learner</code></a>, <a href="/vision.learner.html#cnn_learner"><code>cnn_learner</code></a>) and represents the number of outputs of the final layer of your model (also the number of classes if applicable).</li>
<li><code>classes</code> attribute: it's used by <a href="/train.html#ClassificationInterpretation"><code>ClassificationInterpretation</code></a> and also in <a href="/collab.html#collab_learner"><code>collab_learner</code></a> (best to 