How do i make a focus that isnt able to be completed via focus tree?

so basically i want my focus to only be able to be complete via events

If you want it to be completed, but not give a reward use: unlock_national_focus

If you want the reward too use: complete_national_focus


For example, automatically completing the generic focus Political Effort for Nepal:

NEP = {

complete_national_focus = political_effort

}