code: def __exit__(self, *args):
      self.handle.__exit__(*args)
  
imports: import os
  from tempfile import NamedTemporaryFile
  from time import sleep, time
  import numpy
  from tqdm import tqdm
  from assertpy import assert_that
  from torch.utils.data import Dataset
  from ffcv.writer import DatasetWriter
  from ffcv.reader import Reader
  from ffcv.fields import BytesField, IntField
  from ffcv.pipeline.compiler import Compiler
  from ffcv.memory_managers import OSCacheManager
  from ffcv.libffcv import memcpy
  from ..decorator import benchmark
  from ..benchmark import Benchmark
label_desc: Use image node_id 4 for calling the MemoryReadBytesBench obj's underlying member method code with example usage: obj.__exit__() without return types