How can be drive the payroll payment status out of payroll action?

In HCM hr_pre_pay.payment_status () Oracle prebuilt function is driven this logic, please find below the sample logic for that: SELECT lk2.meaning FROM hcm_lookups lk2 WHERE 1 = 1 AND lk2.lookup_type = 'PAY_STATUS' AND lk2.lookup_code = hr_pre_pay.payment_status(ppra.payroll_rel_action_id, ppa.action_type) can someone kindly provide the functionality technical logic of the above mentioned function.