class_docstr: Context manager for writing report file.
code: def __exit__(self, unused_type, unused_value, unused_traceback):
      if self._report_file:
          self._report_file.close()
  
imports: import collections
  import hashlib
  import os
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.tpu import tensor_tracer_pb2
label_desc: Use image node_id 3 for calling the OpenReportFile obj's underlying member method code with example usage: obj.__exit__(unused_type, unused_value, unused_traceback) without return types