code: def test_impala_integration(self):
      impala_lite.run(
          trajectories_per_actor=2, num_actors=2, unroll_len=20
      )
  
imports: from absl.testing import absltest
  from examples import impala_lite
label_desc: Use image node_id 1 for calling the ImpalaLiteTest obj's underlying member method code with example usage: obj.test_impala_integration() without return types