Public class ServiceResourceScheduleHandlerImpl implements lxscheduler.ServiceResourceScheduleHandler{
 
    // The main interface method.
    public static List<lxscheduler.ServiceResourceSchedule> getUnavailableTimeslots(lxscheduler.ServiceAppointmentRequestInfo requestInfo){
        //Request info values.
        List<lxscheduler.ServiceResourceInfo> serviceResources=requestInfo.getServiceResources();
        DateTime startDate=requestInfo.getStartDate();
        DateTime endDate=requestInfo.getEndDate();
 
 
        List<lxscheduler.ServiceResourceSchedule> resourceUnavailability = new List<lxscheduler.ServiceResourceSchedule>();
        Set<lxscheduler.UnavailableTimeslot> unavailabilityIntervals = new Set<lxscheduler.UnavailableTimeslot>();
 
        //This is a dummy response. Implement your own business logic to connect to your internal or external systems.
        for (Integer i = 0; i < 5; i++) {
             //Set the unavailability intervals of a service resource.
            unavailabilityIntervals.add(new lxscheduler.UnavailableTimeslot(startDate.addMinutes(15*i),startDate.addMinutes(15*(i+1))));
        }
 
       for (lxscheduler.ServiceResourceInfo ServiceResource:serviceResources) {
            //Set the unavailability of Service resource.
        resourceUnavailability.add(new lxscheduler.ServiceResourceSchedule(serviceResource.getServiceResourceId(),unavailabilityIntervals));
 
       }
 
        return resourceUnavailability;
    }
}

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