code: def testAcceptGzip_compressesResponse(self):
      fall_of_hyperion_canto1_stanza1 = "\n".join(
          [
              "Fanatics have their dreams, wherewith they weave",
              "A paradise for a sect; the savage too",
              "From forth the loftiest fashion of his sleep",
              "Guesses at Heaven; pity these have not",
              "Trac'd upon vellum or wild Indian leaf",
              "The shadows of melodious utterance.",
              "But bare of laurel they live, dream, and die;",
              "For Poesy alone can tell her dreams,",
              "With the fine spell of words alone can save",
              "Imagination from the sable charm",
              "And dumb enchantment. Who alive can say,",
              "'Thou art no Poet may'st not tell thy dreams?'",
              "Since every man whose soul is not a clod",
              "Hath visions, and would speak, if he had loved",
              "And been well nurtured in his mother tongue.",
              "Whether the dream now purpos'd to rehearse",
              "Be poet's or fanatic's will be known",
              "When this warm scribe my hand is in the grave.",
          ]
      )
  
      e1 = wtest.EnvironBuilder(
          headers={"Accept-Encoding": "*"}
      ).get_environ()
      any_encoding = wrappers.Request(e1)
  
      r = http_util.Respond(
          any_encoding, fall_of_hyperion_canto1_stanza1, "text/plain"
      )
      self.assertEqual(r.headers.get("Content-Encoding"), "gzip")
      self.assertEqual(
          _gunzip(
              r.response[0]
          ),  # pylint: disable=unsubscriptable-object
          fall_of_hyperion_canto1_stanza1.encode("utf-8"),
      )
  
      e2 = wtest.EnvironBuilder(
          headers={"Accept-Encoding": "gzip"}
      ).get_environ()
      gzip_encoding = wrappers.Request(e2)
  
      r = http_util.Respond(
          gzip_encoding, fall_of_hyperion_canto1_stanza1, "text/plain"
      )
      self.assertEqual(r.headers.get("Content-Encoding"), "gzip")
      self.assertEqual(
          _gunzip(
              r.response[0]
          ),  # pylint: disable=unsubscriptable-object
          fall_of_hyperion_canto1_stanza1.encode("utf-8"),
      )
  
      r = http_util.Respond(
          any_encoding, fall_of_hyperion_canto1_stanza1, "image/png"
      )
      self.assertEqual(
          r.response, [fall_of_hyperion_canto1_stanza1.encode("utf-8")]
      )
  
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 6 for calling the RespondTest obj's underlying member method code with example usage: obj.testAcceptGzip_compressesResponse() without return types