Man pages matching name gnutls_anti_replay_set_add_function in section 3:

gnutls_anti_replay_set_add_function.3.en	debian 10 / gnutls-doc
gnutls_anti_replay_set_add_function.3.en	debian 11 / gnutls-doc
gnutls_anti_replay_set_add_function.3.en	debian 12 / gnutls-doc