code: def CompareToGoldenFile(self, text, golden_filename):
      golden_lines = self.ReadGolden(golden_filename)
      self.CompareToGoldenLines(text, golden_lines)
  
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 2 for calling the TextFormatTest obj's underlying member method code with example usage: obj.CompareToGoldenFile(text, golden_filename) without return types