$ sudo apt-get update
$ sudo apt-get install quickly-unity-lens-template 

quickly-unity-lens-template is installed in your system.

Make ensure the quickly-unity-lens-template package were installed using the commands given below,

$ sudo dpkg-query -l | grep quickly-unity-lens-template *

You will get with quickly-unity-lens-template package name, version, architecture and description in a table

quickly-unity-lens-template package basic information: