Compute the real integral $I=\int_{-\infty}^{\infty} 1/(x^2 + 1)^2 dx$.
user
{"source": "LDJnr/Capybara#TheoremQA", "kind": "unknown", "evolved_from": null}
Compute the real integral $I=\int_{-\infty}^{\infty} 1/(x^2 + 1)^2 dx$.
user
DUMMY RESPONSE
assistant