Man pages matching name chi::driver::memcached::fast in section 3pm:

CHI::Driver::Memcached::Fast.3pm.en	debian 10 / libchi-driver-memcached-perl
CHI::Driver::Memcached::Fast.3pm.en	debian 11 / libchi-driver-memcached-perl
CHI::Driver::Memcached::Fast.3pm.en	debian 12 / libchi-driver-memcached-perl