code: def test_bias_decreases_with_lambda(
      self, advantage_fn, lambda1, lambda2
  ):
      (bias1, _) = estimate_advantage_bias_and_variance(
          advantage_fn, lambda_=lambda1
      )
      (bias2, _) = estimate_advantage_bias_and_variance(
          advantage_fn, lambda_=lambda2
      )
      self.assertGreater(bias1, bias2)
  
file_path: trax/trax/rl/advantages_test.py
imports: import functools
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from trax.rl import advantages
label_desc: Use image node_id 7 for calling the AdvantagesTest obj's underlying member method code with example usage: obj.test_bias_decreases_with_lambda(advantage_fn, lambda1, lambda2) without return types