AsUnion

AsUnion returns a [SandboxBoxStartResponseMountConfigMountsUnion] interface which you can cast to the specific types for more type safety.

Possible runtime types of the union are [SandboxBoxStartResponseMountConfigMountsSandboxapiS3BucketMountSpec], [SandboxBoxStartResponseMountConfigMountsSandboxapiGcsBucketMountSpec], [SandboxBoxStartResponseMountConfigMountsSandboxapiGitRepoMountSpec].