" id="method_listInvalidProperties">
        listInvalidProperties()
        <a href="classes/LINE-Webhook-Model-JoinedMembershipContent.html#method_listInvalidProperties" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/webhook/lib/Model/JoinedMembershipContent.php"><a href="files/src-webhook-lib-model-joinedmembershipcontent.html"><abbr title="src/webhook/lib/Model/JoinedMembers