stdlib/kotlin/-boolean/index.html">Boolean</a><span class="token punctuation">)</span> : <a href="../index.html">HistoryOptions</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><p class="paragraph">Clear backstack history up to the <a href="clazz.html">clazz</a>. This also removes all the necessary fragment involved in that fragment transaction.</p><