Man pages matching name papi_all_thr_spec_t in section 3:

PAPI_all_thr_spec_t.3.en	debian 10 / libpapi-dev
PAPI_all_thr_spec_t.3.en	debian 11 / libpapi-dev
PAPI_all_thr_spec_t.3.en	debian 12 / libpapi-dev