code: def testPrintRawUtf8String(self):
      message = unittest_pb2.TestAllTypes()
      message.repeated_string.append("\u00fc\ua71f")
      text = text_format.MessageToString(message, as_utf8=True)
      self.CompareToGoldenText(
          text, 'repeated_string: "\303\274\352\234\237"\n'
      )
      parsed_message = unittest_pb2.TestAllTypes()
      text_format.Merge(text, parsed_message)
      self.assertEquals(message, parsed_message)
  
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 15 for calling the TextFormatTest obj's underlying member method code with example usage: obj.testPrintRawUtf8String() without return types