esponse_type"><a href="classes/LINE-Clients-MessagingApi-Model-RichMenuBounds.html"><abbr title="\LINE\Clients\MessagingApi\Model\RichMenuBounds">RichMenuBounds</abbr></a>|null</span></code>

    
    
    

        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type"><a href="classes/LINE-Clients-MessagingApi-Model-RichMenuBounds.html"><abbr title="\LINE\Clients\MessagingApi\Model\RichMenuBounds">RichMenuBounds</abbr></a>|null</span>
  