{"kind":"assistant","text":"smf.ols('voted ~ treated + post + treated:post').fit(cov_type='cluster', groups=state) (CR1 errors with statsmodels' default G/(G-1)\u00b7(N-1)/(N-K) correction)","tool_calls":[{"args":{"cluster":"state","controls":["treated","post"],"dataset":"ref_panel","x":["treated_post"],"y":"voted"},"id":"script_1","name":"infer__ols"}]}