Redmine

Goal: To use GSuite's login to authenticate and add as user to Redmine. This is especially useful when the user base is 50+.

My Redmine Installation is :

Environment:
      Redmine version                3.4.5.stable
      Ruby version                   2.4.3-p205 (2017-12-14) [x86_64-linux]
      Rails version                  4.2.8
      Environment                    production
      Database adapter               Mysql2
    SCM:
      Git                            1.7.1
      Filesystem                     
    Redmine plugins:
      redmine_openid_connect         0.9.3

Plugin OpenID-Connect was installed successfully. However, the documentation for the plugin ends there. I could not find any literature on how to use this plugin with Google GSuite/Apps account.

If anyone has idea on how to go about it, then please help me.