Install libgck-1-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libgck-1-doc
Description:
GLib wrapper library for PKCS#11 - documentation
GCK is a wrapper based on GLib implementing the PKCS#11 (Cryptoki) interface. . This package contains the API documentation for the GCK library.
Homepage: https://wiki.gnome.org/Projects/GnomeKeyring
Version: 3.28.0-1
Section: doc