BuiltInPublisherPageLayoutsV1

Alpha API. Initial API, highly likely to change outside SemVer. Don’t build on it in production.

All built-in page layouts served by the SPI. Built-ins are read-only: they cannot be edited or deleted, and they are never persisted on the backend.

BuiltInPublisherPageLayoutsV1: readonly IPublisherPageLayoutV1[]