uled function. Will have this instance as argument.</p></td></tr><tr><th style="width:25%;"><code>condition</code></th><td><p>When this function returns <code><a href="../Bool.html">true</a></code>, <code>f</code> gets executed.</p></td></tr><tr><th style="width:25%;"><code>once</code></th><td><p>Whether the associated function is set to be executed only once.
If <code><a href="../Bool.html">false</a></code>, the function gets executed every <code>tStart</code> seconds.</p></td></tr><tr><th style="width:25%