OAuth2 credentials representing the built-in service account for Google App Engine. You should
only use this class if you are running on AppEngine and are using urlfetch.
Fetches access tokens from the App Identity service.
If the credentials support scopes, creates a copy of the identity with the specified scopes,
invalidates the existing scoped access token; otherwise, return the same instance.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-01-28 UTC."],[],[]]