fcitx-keyboard software package provides virtual package provided by fcitx-modules, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fcitx-keyboard
fcitx-keyboard is installed in your system.
Make ensure the fcitx-keyboard package were installed using the commands given below,
$ sudo dpkg-query -l | grep fcitx-keyboard*
You will get with fcitx-keyboard package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Virtual packages |
| Package | fcitx-keyboard |
| Version | |
| Description | virtual package provided by fcitx-modules |
| Sub Section | virtual |