obs</span><span class="o">=</span><span class="mi">8</span>
    <span class="p">)</span> <span class="k">as</span> <span class="n">generator</span><span class="p">:</span>
        <span class="c1"># Load the cloud backends, installing the Python packages if necessary</span>

        <span class="c1"># See: https://codelabs.developers.google.com/codelabs/cloud-text-speech-python3</span>
        <span class="k">if</span> <span class="s1">'GOOGLE_APPLICATION_CREDENTIALS'</span> <span class="ow">in</span> <span