Source for Gradle enterprise Plugin

Where can I get the source for gradle enterprise plugin?
I am trying to package Gradle 6.4.1 in Debian but have I cannot build it fully offline because we don’t have enterprise plugin in debian.

Here’s where I am working on it:

Gradle Enterprise is a commercial product and the components, including the plugin, are not open source. The Gradle Enterprise plugin is available as a no-charge product, but only as a binary distribution. If you are unable to use the distributed binary, you would need to modify the open source build tool to not use the plugin. This would be an innocuous change as build scans could not be published from an offline environment anyway.