<code class="code"><span class="constructor">Li</span></code>, <code class="code"><span class="constructor">Lu</span></code>, <code class="code"><span class="constructor">Lx</span></code>, <code class="code"><span class="constructor">LX</span></code>, <code class="code"><span class="constructor">Lo</span></code>: convert an <code class="code">int64</code> argument to
     the format specified by the second letter.</li>
<li><code class="code">a</code>: user-defined printer. Take two arguments and apply the
 