code: def check_len(self):
      self.assertEqual(len(self.y_queue), len(self.t_queue))
  
file_path: chainerrl/tests/misc_tests/test_collections.py
imports: import collections
  import unittest
  from chainer import testing
  from chainerrl.misc.collections import RandomAccessQueue
label_desc: Use image node_id 4 for calling the TestRandomAccessQueue obj's underlying member method code with example usage: obj.check_len() without return types