t</span> <span class="o">=</span> <span class="p">{}</span>
    <span class="n">_rank</span> <span class="o">=</span> <span class="p">{}</span>

    <span class="k">def</span> <span class="nf">_creatingItemSets</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Scans the dataset</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="bp">self</span><span 