tion_optional_pick-2">function_optional_pick/2</a></h3>
<div class="spec">
<p><tt>function_optional_pick(Function::undefined | function() | {module(), atom()} | {{module(), atom()}} | {{module(), atom(), list()}}, ArityOrder::[non_neg_integer(), ...]) -&gt; undefined | {function(), Arity::non_neg_integer()}</tt><br></p>
<p> </p>
</div>

<h3 class="function"><a name="function_optional_pick_any-2">function_optional_pick_any/2</a></h3>
<div class="spec">
<p><tt>function_optional_pick_any(Function::undefined | 