;</code></td><td class="doc"><p>type of the returned source</p></td></tr><tr id="type-spec.index" class="anchored"><td class="def field"><a href="#type-spec.index" class="anchor"></a><code>index : <span>int option</span>;</code></td><td class="doc"><p>index of the returned source if Some; return value if None</p></td></tr></table><code>}</code></dt></dl><dl><dt class="spec value" id="val-get"><a href="#val-get" class="anchor"></a><code><span class="keyword">val</span> get : <span>caller_pname:<a href="../..