serviceAccount property
Service account email used to generate the OAuth token.
The principal who calls this API must have iam.serviceAccounts.actAs permission in the service account. See https://cloud.google.com/iam/docs/understanding-service-accounts for more information. Eventarc service agents must have roles/roles/iam.serviceAccountTokenCreator role to allow Pipeline to create OAuth2 tokens for authenticated requests.
Required.
Implementation
core.String? serviceAccount;