Sorry for this one, but we don't support imports with google-native just yet as it's still in public preview (see the note in
https://www.pulumi.com/docs/guides/adopting/import/#pulumi-import-resource-operation); that's why there's no import section in the API docs. Mainly the issue in these cases is the API discovery is still changing rapidly enough that development priority is on native creation rather than import. That being said, you
can mix google native and google classic just fine, so I'd try importing with classic:
pulumi import gcp:datacatalog/entry:Entry o40-entry <name>
Generally, if there's an import section like
this in the API docs, you can import it.