code: def test_dataset_param_validation():
      with pytest.raises(ValueError):
          ExpertDataset()
  
      traj_data = np.load(EXPERT_PATH_PENDULUM)
      with pytest.raises(ValueError):
          ExpertDataset(
              traj_data=traj_data, expert_path=EXPERT_PATH_PENDULUM
          )
  
imports: import os
  import shutil
  import gym
  import numpy
  import pytest
  from stable_baselines import A2C, ACER, ACKTR, GAIL, DDPG, DQN, PPO1, PPO2, TD3, TRPO, SAC
  from stable_baselines.common.cmd_util import make_atari_env
  from stable_baselines.common.vec_env import VecFrameStack, DummyVecEnv
  from stable_baselines.common.evaluation import evaluate_policy
  from stable_baselines.common.callbacks import CheckpointCallback
  from stable_baselines.gail import ExpertDataset, generate_expert_traj
label_desc: Use image node_id 9 for calling a global function with example usage: test_dataset_param_validation() without return types