an class="tsd-flag ts-flagOptional">Optional</span> blockTag: <a href="../modules.html#BlockTag" class="tsd-signature-type" data-tsd-kind="Type alias">BlockTag</a></h5><div class="tsd-comment tsd-typography"><div class="lead">
<p>The block to make the call on</p>
</div></div></li></ul><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">&gt;</span></h