$ sudo apt-get update
$ sudo apt-get install code-of-conduct-signing-assist

code-of-conduct-signing-assist is installed in your system.

Make ensure the code-of-conduct-signing-assist package were installed using the commands given below,

$ sudo dpkg-query -l | grep code-of-conduct-signing-assist*

You will get with code-of-conduct-signing-assist package name, version, architecture and description in a table

code-of-conduct-signing-assist package basic information: