Starting from version 3, there are new tools for MongoDB, written in Go language.

To test these tools, first switch to the src/go directory, then use command make.

Example: https://github.com/percona/percona-toolkit/blob/3.x/CONTRIBUTING.md#go-tools

Expectation: 

It would be good to have these details in the below doc links: 

https://docs.percona.com/percona-toolkit/installation.html

Github Readme:  https://github.com/percona/percona-toolkit/tree/3.x#readme