an><span class="parameter ">body<span class="token operator">: </span><a href="update-returning.html">T</a><span class="token punctuation">.</span><span class="token punctuation">(</span><a href="../../exposed-core/org.jetbrains.exposed.v1.core.statements/-update-statement/index.html">UpdateStatement</a><span class="token punctuation">)</span><span class="token operator"> -&gt; </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html">Unit</a></span></span><span class="token pun