This read-create CienaStatsClear object, when set to clear(1), clears the History and 24HrHistory bins associated with a given PM instance, per its description, distinct from cienaCesPmInstanceClear which resets only the current live counts. This gives an engineer a way to wipe accumulated historical bin data specifically, for example after validating that historical data was corrupted or is no longer relevant, without necessarily also resetting the live current counters. An engineer who just changed a PM instance's bin duration and wants a clean historical record going forward, without stale bins collected under the old duration, would set this object to purge the old history bins.