{"library":"pettingzoo","install":[{"cmd":"pip install pettingzoo","imports":["from pettingzoo.butterfly import pistonball_v6"]},{"cmd":"pip install 'pettingzoo[all]' # Install all environment dependencies","imports":[]},{"cmd":"pip install 'pettingzoo[butterfly]' # Install dependencies for a specific family (e.g., Butterfly)","imports":[]},{"cmd":"pip install supersuit # Common companion library for wrappers/preprocessing","imports":[]}]}