 class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol">; </span><br/><span>    </span><span class="tsd-kind-property">on_failure</span><span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">; </span><br/><span>    </span><span class="tsd-kind-property">on_failure_exact</span><span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</spa