aeitzman

@duffenterprises Can you elaborate on what you mean by “a file now exists that can subsequently be used for access”? The generated ADC file itself doesn’t have keys that could...

> What makes this PR breaking? It seems it can work without breaking existing users. On a previous PR, @bcoe was saying this should be a breaking change: https://github.com/googleapis/google-auth-library-nodejs/pull/1419#pullrequestreview-1003138398

@paulwilljones good catch, the exported version of the credential source struct should support the certificate configuration, I will create a PR with that change. The feature works right now if...