code: def test_load_feedback(self):
      # only run data download tests 20% of the time to speed up frequent testing
      random.seed(time.time())
      if random.random() > 0.8:
          data = netflix.load_feedback(variant="small")
          self.assertEqual(len(data), 607803)
  
imports: import unittest
  import random
  import time
  from cornac.datasets import netflix
label_desc: Use image node_id 1 for calling the TestNetflix obj's underlying member method code with example usage: obj.test_load_feedback() without return types