assif</a></span><span class="op">$</span><span class="fu">new</span><span class="op">(</span></span>
<span>  id <span class="op">=</span> <span class="st">"my_classification_task"</span>,</span>
<span>  backend <span class="op">=</span> <span class="va">mydata</span>,</span>
<span>  target <span class="op">=</span> <span class="va">target_col</span>,</span>
<span>  positive <span class="op">=</span> <span class="va">positive_class</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><spa