Implement a filter in slots_available_on_date function

The general idea is to hide or show one timeslot with custom code. Request: Implement a filter in slots_available_on_date function Or “get_slots_available_count” or “is_timeslot_available_on_day” It should probably be in slots_available_on_date function (iconic-woo-delivery-slots.php). Which call is_timeslot_available_on_day & get_slots_available_count no filters available in here or in the nested functions at current.