="spec value" id="val-spendable_by"><a href="#val-spendable_by" class="anchor"></a><code><span class="keyword">val</span> spendable_by : <span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span> <span>&#45;&gt;</span> string</code></dt></dl></div></body></html>