This is not an official Google product.
This repo contains component for github plugin for justification verification service (jvs).
This plugin uses github app for authentication. See authetication with github app for more detail.
Follow the directions from here GitHub instructions to create your github app, make sure to capture app id and private key during the creation.
After the app is created, install the app, and grant it with issue read permission to the repos you want to access, and capture the installation id.
Please refer the this example module for setting up the infra.