message: Fix central storage 2 gpus combination
diff: @@ -218,7 +218,7 @@ mirrored_strategy_with_cpu_1_and_2.__doc__ = (
  """)
  central_storage_strategy_with_two_gpus = combinations.NamedDistribution(
  "CentralStorage2GPUs",
  - lambda: CentralStorageStrategy._from_num_gpus(2), # pylint: disable=protected-access
  + lambda: CentralStorageStrategy(["/gpu:0", "/gpu:1"]),
  required_gpus=2)
  central_storage_strategy_with_gpu_and_cpu = combinations.NamedDistribution(
  "CentralStorageCPUAndGPU",
  