Typoscript包括php文件到主容器TYPO3

Question

I am including a php file via typoscript to a specific page. Its all working fine but I want to add this file to the main container.

Here is the typoscript:

page = PAGE
page.10 = USER_INT
page.10 {
includeLibs =  fileadmin/php/shop_init.php
userFunc = voucher->init

}

Where I can define that the return element show in the main container?