ser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="lineno">111</span>        <span class="s2">&quot;--prompt&quot;</span><span class="p">,</span>
<span class="lineno">112</span>        <span class="nb">type</span><span class="o">=</span><span class="nb">str</span><span class="p">,</span>
<span class="lineno">113</span>        <span class="n">nargs</span><span class="o">=</span><span class="s2">&quot;?&quot;</span><span class="p">,</span>
<span class="l