Optional
accessAccess token for extension endpoint. Only used to propagate token from [[ExecuteExtensionRequest.runtime_auth_config]] at request time.
Optional
serviceThe service account used to generate access tokens for executing the Extension. - If the service account is specified, the iam.serviceAccounts.getAccessToken
permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the provided service account.
Config for user oauth.