code: def testWriteMultipleBinary(self):
      temp_dir = self._CreateDeepS3Structure()
      ckpt_path = os.path.join(temp_dir, "model2.ckpt")
      ckpt_content = b"asdfasdfasdffoobarbuzz" * 5
      with gfile.GFile(ckpt_path, "wb") as f:
          for i in range(0, len(ckpt_content), 3):
              f.write(ckpt_content[i : i + 3])
              # Test periodic flushing of the file
              if i % 9 == 0:
                  f.flush()
      with gfile.GFile(ckpt_path, "rb") as f:
          ckpt_read = f.read()
          self.assertEqual(ckpt_content, ckpt_read)
  
imports: import boto3
  import os
  import unittest
  from moto import mock_s3
  from tensorboard.compat.tensorflow_stub import errors
  from tensorboard.compat.tensorflow_stub.io import gfile
label_desc: Use image node_id 17 for calling the GFileTest obj's underlying member method code with example usage: obj.testWriteMultipleBinary() without return types