code: def test_mlp_pi(self):
      from evojax.policy import PermutationInvariantPolicy
  
      _ = PermutationInvariantPolicy(act_dim=16, hidden_dim=16)
      assert True
  
file_path: evojax/tests/test_init.py
label_desc: Use image node_id 3 for calling the TestPolicy obj's underlying member method code with example usage: obj.test_mlp_pi() without return types