an class="token operator">: </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html">Boolean</a></span></span><span class="token punctuation">)</span><span class="token operator">: </span><a href="../../couchbase-lite/kotbase/-expression/index.html">Expression</a><span class="clearfix"><span class="floating-right">(<a href="https://github.com/jeffdgr8/kotbase/tree/main/couchbase-lite-ee-ktx/src/commonMain/kotlin/kotbase/ktx/QueryBuilderExtensions.kt#L367">source</a>)</span><