docs: RingbufferContainer getRingBufferContainer() {
          final RingbufferService service = getService();
          final ObjectNamespace ns = RingbufferService.getRingbufferNamespace(name);
  
          RingbufferContainer ringbuffer = service.getContainerOrNull(getPartitionId(), ns);
          if (ringbuffer == null) {
              ringbuffer = service.getOrCreateContainer(getPartitionId(), ns, service.getRingbufferConfig(name));
          }
  
          ringbuffer.cleanup();
          return ringbuffer;
      }