Man pages matching name papi_granularity_option_t in section 3:

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