n class="p">{}</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_compression_type</span> <span class="o">=</span> <span class="n">compression_type</span>
    
    <span class="k">def</span> <span class="nf">_valueDict_builder</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">data</span><span class="p">):</span>
        <span class="n">valueDict</span> <span class="o">=</span> <span class="p">{}</span>
        <span class="k">f