a class="source_link" data-toggle="collapse" data-target="#DataBunch-pytest" style="float:right; padding-right:10px">[test]</a></h2><blockquote><p><code>DataBunch</code>(<strong><code>train_dl</code></strong>:<a href="https://pytorch.org/docs/stable/data.html#torch.utils.data.DataLoader"><code>DataLoader</code></a>, <strong><code>valid_dl</code></strong>:<a href="https://pytorch.org/docs/stable/data.html#torch.utils.data.DataLoader"><code>DataLoader</code></a>, <strong><code>fix_dl</code></strong>:<a href="