Man pages matching name aptpkg::pkgrecords in section 3pm:

AptPkg::PkgRecords.3pm.en	debian 10 / libapt-pkg-perl
AptPkg::PkgRecords.3pm.en	debian 11 / libapt-pkg-perl
AptPkg::PkgRecords.3pm.en	debian 12 / libapt-pkg-perl