ref="#type-t">t</a> option</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-to_singleton"><a href="#val-to_singleton" class="anchor"></a><code><span><span class="keyword">val</span> to_singleton : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="../../IR/IntLit/index.html#type-t">IR.IntLit.t</a> option</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-requires_integer_reasonin