ion</span><span class="Other">,</span> <span class="Identifier">KeyError</span><span class="Other">,</span> <span class="Identifier">Exception</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Fetch a value in the database<div class="admonition admonition-info"><span class="admonition-info-text"><b>Note:</b></span>
This inits and resets a transactio