> <span class="s2">&quot;chain &#39;</span><span class="si">{}</span><span class="s2">&#39; and &quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="c1"># otherwise, if no chain info given, do not put selector on chain</span>
            <span class="n">chain_sel</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span>

       