quot;</span>

    <span class="k">assert</span> <span class="n">key_location</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
    <span class="bp">self</span><span class="o">.</span><span class="n">key_name</span> <span class="o">=</span> <span class="n">key_name</span>
    <span class="bp">self</span><span class="o">.</span><span class="n">key_location</span> <span class="o">=</span> <span class="n">key_location</span>
    <span class="bp">self</span><span class="o