Man pages matching name kinosearch1::docs::fileformat in section 3pm:

KinoSearch1::Docs::FileFormat.3pm.en	debian 10 / libkinosearch1-perl
KinoSearch1::Docs::FileFormat.3pm.en	debian 11 / libkinosearch1-perl
KinoSearch1::Docs::FileFormat.3pm.en	debian 12 / libkinosearch1-perl