type
The user type. It determines the method to authenticate the user during login. The default is the database's built-in user type. Flags include "BUILT_IN", "CLOUD_IAM_USER", "CLOUD_IAM_SERVICE_ACCOUNT", "CLOUD_IAM_GROUP", "CLOUD_IAM_GROUP_USER" and "CLOUD_IAM_GROUP_SERVICE_ACCOUNT" for Postgres and MySQL.