WordPress现代部落事件插件显示每个类别不同的​​页面布局

Hi I using Modern tribe events plugin and i want to display different page layout per category. According plugin documentation i should use:

if (tribe_event_in_category('my-category-slug')) { /* Do something */ }

My custom layout file is custom-template.php. Can some one tell me how function should look to achieve this, please? Thank you.

function my_custom_function() {
if (tribe_event_in_category('one-day-conferences')) {
/* Do something */
}
}
add_action( 'template_redirect', 'my_custom_function' );