operator">&lt;</span><a href="is-null-or-empty.html">T</a><span class="token operator"> : </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html">String</a><span class="token operator">?</span><span class="token operator">&gt; </span><a href="../-expression/index.html">Expression</a><span class="token operator">&lt;</span><a href="is-null-or-empty.html">T</a><span class="token operator">&gt;</span><span class="token punctuation">.</span><a href="is-null-or-empty.html"><span 