How to download and setup backoff
Open terminal and run command
git clone https://github.com/cenkalti/backoff.git
git clone is used to create a copy or clone of backoff repositories.
You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with backoff https://github.com/cenkalti/backoff/archive/master.zip
Or simply clone backoff with SSH
[email protected]:cenkalti/backoff.git