PrivateCatalog allows catalog consumers to retrieve Catalog, Product
and Version resources under a target resource context.
Catalog is computed based on the [Association][]s linked to the target
resource and its ancestors. Each association's
[google.cloud.privatecatalogproducer.v1beta.Catalog][] is transformed into a
Catalog. If multiple associations have the same parent
[google.cloud.privatecatalogproducer.v1beta.Catalog][], they are
de-duplicated into one Catalog. Users must have
cloudprivatecatalog.catalogTargets.get IAM permission on the resource
context in order to access catalogs. Catalog contains the resource name and
a subset of data of the original
[google.cloud.privatecatalogproducer.v1beta.Catalog][].
Product is child resource of the catalog. A Product contains the resource
name and a subset of the data of the original
[google.cloud.privatecatalogproducer.v1beta.Product][].
Version is child resource of the product. A Version contains the resource
name and a subset of the data of the original
[google.cloud.privatecatalogproducer.v1beta.Version][].