code: def test_load_plot(self):
      # only run data download tests 20% of the time to speed up frequent testing
      random.seed(time.time())
      if random.random() > 0.8:
          plots, ids = movielens.load_plot()
          self.assertEqual(len(ids), 10076)
  
file_path: cornac/tests/cornac/datasets/test_movielens.py
imports: import unittest
  import random
  import time
  from cornac.datasets import movielens
label_desc: Use image node_id 2 for calling the TestMovieLens obj's underlying member method code with example usage: obj.test_load_plot() without return types