code: def testMergeStringFieldUnescape(self):
      message = unittest_pb2.TestAllTypes()
      text = r'''repeated_string: "\xf\x62"
                 repeated_string: "\\xf\\x62"
                 repeated_string: "\\\xf\\\x62"
                 repeated_string: "\\\\xf\\\\x62"
                 repeated_string: "\\\\\xf\\\\\x62"
                 repeated_string: "\x5cx20"'''
      text_format.Merge(text, message)
  
      SLASH = "\\"
      self.assertEqual("\x0fb", message.repeated_string[0])
      self.assertEqual(
          SLASH + "xf" + SLASH + "x62", message.repeated_string[1]
      )
      self.assertEqual(
          SLASH + "\x0f" + SLASH + "b", message.repeated_string[2]
      )
      self.assertEqual(
          SLASH + SLASH + "xf" + SLASH + SLASH + "x62",
          message.repeated_string[3],
      )
      self.assertEqual(
          SLASH + SLASH + "\x0f" + SLASH + SLASH + "b",
          message.repeated_string[4],
      )
      self.assertEqual(SLASH + "x20", message.repeated_string[5])
  
imports: import difflib
  import re
  import unittest
  from google.protobuf import text_format
  from google.protobuf.internal import test_util
  from google.protobuf import unittest_pb2
  from google.protobuf import unittest_mset_pb2
label_desc: Use image node_id 33 for calling the TextFormatTest obj's underlying member method code with example usage: obj.testMergeStringFieldUnescape() without return types