$ sudo apt-get update
$ sudo apt-get install golang-github-cenkalti-backoff

golang-github-cenkalti-backoff is installed in your system.

Make ensure the golang-github-cenkalti-backoff package were installed using the commands given below,

$ sudo dpkg-query -l | grep golang-github-cenkalti-backoff*

You will get with golang-github-cenkalti-backoff package name, version, architecture and description in a table

golang-github-cenkalti-backoff package basic information: