This enum is defined as #[non_exhaustive] because Google Cloud may add
additional enum variants at any time. Adding new variants is not considered
a breaking change. Applications should write their code in anticipation of:
New values appearing in future releases of the client library, and
New values received dynamically, without application changes.
Please consult the Working with enums section in the user guide for some
guidelines.
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Automatic server certificate rotation during Cloud SQL scheduled
maintenance or self-service maintenance updates. Requires
server_ca_mode to be GOOGLE_MANAGED_CAS_CA or
CUSTOMER_MANAGED_CAS_CA.