nal-link">class</a></span><span class="op">(</span><span class="va">img</span> <span class="op">*</span> <span class="va">img</span><span class="op">)</span></span>
<span><span class="co">#&gt; [1] "nifti"</span></span>
<span><span class="co">#&gt; attr(,"package")</span></span>
<span><span class="co">#&gt; [1] "oro.nifti"</span></span>
<span><span class="fu"><a href="https://rdrr.io/r/base/class.html" class="external-link">class</a></span><span class="op">(</span><span class="va">img</span><span class="op"