code: def _gunzip(bs):
      with gzip.GzipFile(fileobj=io.BytesIO(bs), mode="rb") as f:
          return f.read()
  
imports: import gzip
  import io
  import struct
  from unittest import mock
  from werkzeug import test
  from werkzeug import wrappers
  from tensorboard import test
  from tensorboard.backend import http_util
label_desc: Use image node_id 2 for calling a global function with example usage: _gunzip(bs) and returns: f