Man pages matching name unibi_set_ext_str_name in section 3:

unibi_set_ext_str_name.3.en	debian 10 / libunibilium-dev
unibi_set_ext_str_name.3.en	debian 11 / libunibilium-dev
unibi_set_ext_str_name.3.en	debian 12 / libunibilium-dev