lass="n">value</span>

    <span class="k">def</span> <span class="nf">_getUniqueItemList</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>

        <span class="c1"># tidSets will store all the initial tids</span>
        <span class="n">tidSets</span> <span class="o">=</span> <span class="p">{}</span>
        <span class="c1"># uniqueItem will store all frequent 1 items</span>
        <span class="n">uniqueItem</span> <span class="o">=</span> <span class="p">[]</span>
   