code: def testParseFileVersion_success(self):
      self.assertEqual(
          event_util.ParseFileVersion("brain.Event:1.0"), 1.0
      )
  
file_path: tensorboard/tensorboard/backend/event_processing/event_util_test.py
imports: from unittest import mock
  from tensorboard import test
  from tensorboard.backend.event_processing import event_util
  from tensorboard.compat.proto import event_pb2
  from tensorboard.util import tb_logging
label_desc: Use image node_id 1 for calling the EventUtilTest obj's underlying member method code with example usage: obj.testParseFileVersion_success() without return types