public static ServiceConfigurator <TService> ScheduleQuartzJobWithCronSchedule <TService, TJob>( this ServiceConfigurator <TService> configurator, string cronSchedule, string calendarName = null) where TJob : IJob where TService : class { return(configurator.ScheduleQuartzJobWithTrigger <TService, TJob>(TopshelfQuartzTriggerExtensions.GetCronScheduleTrigger(cronSchedule, calendarName))); }