pub fn load_system_data_contracts(
system_contracts: BTreeSet<SystemDataContract>,
platform_version: &PlatformVersion,
) -> Result<BTreeMap<SystemDataContract, DataContract>, ProtocolError>pub fn load_system_data_contracts(
system_contracts: BTreeSet<SystemDataContract>,
platform_version: &PlatformVersion,
) -> Result<BTreeMap<SystemDataContract, DataContract>, ProtocolError>