/usr/share/man/man3/genders_getnumattrs.3.gz is in libgenders0-dev 1.21-1build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/genders_getnumnodes.3.gz
/usr/share/man/man3/genders_getnumnodes.3.gz