perator">&gt;</span><span class="token punctuation">.</span><a href="is-not-null.html"><span class="token function">isNotNull</span></a><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">: </span><a href="-op/index.html">Op</a><span class="token operator">&lt;</span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html">Boolean</a><span class="token operator">&gt;</span></div><p class="paragraph">Returns <code class="lang-