code: def test_step_gym_env():
      """Test step_env.py."""
      assert (
          subprocess.run(
              [EXAMPLES_ROOT_DIR / "step_gym_env.py", "--n_steps", "1"],
              check=False,
          ).returncode
          == 0
      )
  
imports: import os
  import pathlib
  import subprocess
  import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: test_step_gym_env() without return types