static AbstractScheduledService.Scheduler | 
AbstractScheduledService.Scheduler.newFixedDelaySchedule(long initialDelay,
                     long delay,
                     TimeUnit unit) | 
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static AbstractScheduledService.Scheduler | 
AbstractScheduledService.Scheduler.newFixedDelaySchedule(Duration initialDelay,
                     Duration delay) | 
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static AbstractScheduledService.Scheduler | 
AbstractScheduledService.Scheduler.newFixedRateSchedule(long initialDelay,
                    long period,
                    TimeUnit unit) | 
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static AbstractScheduledService.Scheduler | 
AbstractScheduledService.Scheduler.newFixedRateSchedule(Duration initialDelay,
                    Duration period) | 
 | 
protected abstract AbstractScheduledService.Scheduler | 
AbstractScheduledService.scheduler() | 
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