code: def test_logistic_tails_are_in_order(self):
      dist = tfp.distributions.Logistic(loc=-3.0, scale=1.0)
      self.assertGreater(
          helpers.upper_tail(dist, 2**-8),
          helpers.lower_tail(dist, 2**-8),
      )
  
imports: import tensorflow
  import tensorflow_probability
  from tensorflow_compression.python.distributions import deep_factorized
  from tensorflow_compression.python.distributions import helpers
label_desc: Use image node_id 11 for calling the HelpersTest obj's underlying member method code with example usage: obj.test_logistic_tails_are_in_order() without return types