come to help signaling any problem or missing information, please see <span class="xref std std-ref">Contributing</span> below.</p>
<p>There are many examples scattered around in different folders <code class="docutils literal notranslate"><span class="pre">Demo</span></code>, <code class="docutils literal notranslate"><span class="pre">Tutorial</span></code>, <code class="docutils literal notranslate"><span class="pre">Test</span></code>, etc. , some of which are not precisely documented, or even finished.