</a><code><span class="keyword">type</span> scheduler_thread_constraint</code><code> = </code><table class="variant"><tr id="type-scheduler_thread_constraint.ForUIThread" class="anchored"><td class="def constructor"><a href="#type-scheduler_thread_constraint.ForUIThread" class="anchor"></a><code>| </code><code><span class="constructor">ForUIThread</span></code></td></tr><tr id="type-scheduler_thread_constraint.ForNonUIThread" class="anchored"><td class="def constructor"><a href="#type-scheduler_thread_const