The results from the generateCodeVerifierAsync method. To learn more, See the sample: https://github.com/googleapis/google-auth-library-nodejs/blob/main/samples/oauth2-codeVerifier.js
generateCodeVerifierAsync
The code_challenge that should be sent with the generateAuthUrl call to obtain a verifiable authentication url.
generateAuthUrl
The code verifier that will be used when calling getToken to obtain a new access token.
getToken
The results from the
generateCodeVerifierAsync
method. To learn more, See the sample: https://github.com/googleapis/google-auth-library-nodejs/blob/main/samples/oauth2-codeVerifier.js