pub async fn developer_metadata(
drive: &DriveClient,
sheets: &SheetsClient,
opts: &DeveloperMetadataOptions,
rules: &[FolderPermissionRule],
) -> DeveloperMetadataOutcomeExpand description
Runs one set-developer-metadata/delete-developer-metadata mutation,
logging every attempt that isn’t a dry run. Never returns Err,
matching format.rs::format.