Man pages matching name knet_get_transport_name_by_id in section 3:

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