Man pages matching name nozzle_get_handle_by_name in section 3:

nozzle_get_handle_by_name.3.en	debian 10 / libknet-doc
nozzle_get_handle_by_name.3.en	debian 11 / libknet-doc
nozzle_get_handle_by_name.3.en	debian 12 / libknet-doc