code: def test_len(self):
      self.assertEqual(1, len(self.wrapped_flags))
  
file_path: tensorflow/tensorflow/python/platform/flags_test.py
imports: import sys
  import unittest
  from absl import flags
  from tensorflow.python.platform import flags
  from tensorflow.python.platform import test
label_desc: Use image node_id 9 for calling the FlagsTest obj's underlying member method code with example usage: obj.test_len() without return types