oken operator">: </span><span data-unresolved-link="io.r2dbc.spi/IsolationLevel///PointingToDeclaration/">IsolationLevel</span><span class="token operator">?</span><span class="token operator"> = </span>null<span class="token punctuation">, </span></span><span class="parameter ">readOnly<span class="token operator">: </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html">Boolean</a><span class="token operator">?</span><span class="token operator"> = </span>null<span class=