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<h4 id="DeviceDataLoader.proc_batch" class="doc_header"><code>proc_batch</code><a href="https://github.com/fastai/fastai/blob/master/fastai/basic_data.py#L67" class="source_link" style="float:right">[source]</a><a class="source_link" data-toggle="collapse" data-target="#DeviceDataLoader-proc_batch-pytest" style="float:right; padding-right:10px">[test]</a></h4><blockquote><p><code>proc_batch</code>(<strong><code>b</code></strong>: