action</span>.t&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">'</span>a&nbsp;<span class="constructor">BsAsyncMonad</span>.<span class="constructor">Callback</span>.t)&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">'</span>a&nbsp;<span class="constructor">BsAsyncMonad</span>.<span class="constructor">Callback</span>.t<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&