 <span class="s1">&#39;itemsession_ovt&#39;</span><span class="p">:</span> <span class="s1">&#39;constant&#39;</span><span class="p">,</span>
<a id="__codelineno-7-6" name="__codelineno-7-6" href="#__codelineno-7-6"></a>        <span class="s1">&#39;session_income&#39;</span><span class="p">:</span> <span class="s1">&#39;item&#39;</span><span class="p">,</span>
<a id="__codelineno-7-7" name="__codelineno-7-7" href="#__codelineno-7-7"></a>        <span class="s1">&#39;itemsession_ivt&#39;</span><span class="