code: def test_read_write_1(self):
      launch(ram_read_write_worker, 8)
  
imports: import io
  import tempfile
  import unittest
  from contextlib import ExitStack
  import torch
  import torch.distributed
  import torch.multiprocessing
  from detectron2.utils import comm
  from densepose.evaluation.tensor_storage import SingleProcessFileTensorStorage, SingleProcessRamTensorStorage, SizeData, storage_gather
label_desc: Use image node_id 1 for calling the TestMultiProcessRamTensorStorage obj's underlying member method code with example usage: obj.test_read_write_1() without return types