nc</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_stub</span><span class="o">.</span><span class="n">GetStreamParams</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_params_from_response</span><span class="p">,</span>
                               <span class="bp">self</span><span class="o">.</span><span class="n">_streamquality_error_from_response</s