pan class="Identifier">body</span><span class="Other">:</span> <span class="Identifier">untyped</span><span class="Other">)</span></pre></dt>
  <dd>
    
    Executes <tt class="docutils literal"><span class="pre"><span class="Identifier">body</span></span></tt> exactly once.
    <a href="https://github.com/planetis-m/sync/tree/master/sync/once.nim#L86" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/planetis-m/sync/edit/master/sync/once.nim#L86" class="link-seesrc" ta