{ "service_account_impersonation_url": "https://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/sa3@developer.gserviceaccount.com:generateAccessToken", "delegates": [ "sa1@developer.gserviceaccount.com", "sa2@developer.gserviceaccount.com" ], "source_credentials": { "type": "service_account", "project_id": "fake_project", "private_key_id": "89asd789789uo473454c47543", "private_key": "fake", "client_email": "sa@fake_project.iam.gserviceaccount.com", "client_id": "gopher", "auth_uri": "https://accounts.google.com/o/oauth2/auth", "token_uri": "https://oauth2.googleapis.com/token" }, "type": "impersonated_service_account", "universe_domain": "example.com" }