lable=":lib:dokkaHtml/main"><div class="symbol monospace"><span class="token keyword">abstract </span><span class="token keyword">val </span><a href="is-extension.html">isExtension</a><span class="token operator">: </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html">Boolean</a></div><p class="paragraph">Indicates whether the declaration is an extension.</p><span class="kdoc-tag"><h4 class="">Return</h4><p class="paragraph"><code class="lang-kotlin">true</code> if the dec