if_fpm_oif,How do i get the instance for "IF_FPM_OIF_CONF_EXIT->OVERRIDE_EVENT_OIF"

Hi Experts,

I want to hide some of my form UIBBs in my FPM application.I want to use IF_FPM_OIF_CONF_EXIT->OVERRIDE_EVENT_OIF Remove UIBB method.

But i am not able to instantiate the reference for if_fpm_oif_conf_exit   and nor if_fpm_oif.

Please help me figuring out how to use these utilities.

Kind Regards,

Rupesh