"phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">offsetSet</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int|null&nbsp;</span><span class="phpdocumentor-signature__argument__name">$offset</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">mixed&nbsp;</span><span class="phpdoc