lass="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns string representation of literal, for example &quot;~2&quot;.&quot;&quot;&quot;</span>
        <span class="n">prefix</span> <span class="o">=</span> <span class="s2">&quot;~&quot;</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">negated</span> <span class="k">else</span> <span class="s2">&quot;&quot;</span>
     