fn set_twcs_options(
options: &mut TwcsOptions,
default_option: &TwcsOptions,
key: &str,
value: &str,
region_id: RegionId,
) -> Result<(), MetadataError>
fn set_twcs_options(
options: &mut TwcsOptions,
default_option: &TwcsOptions,
key: &str,
value: &str,
region_id: RegionId,
) -> Result<(), MetadataError>