Abi: How does type set<uint8_t> generate abi type uint8[]

[huangyangcong]

cdt-cpp version: 4.0.1

• std::set<uint8_t> order_ids;

This actually generates abi

{
    "name": "order_ids",
    "type": "bytes"
}

and it is expected to generate

{
    "name": "order_ids",
    "type": "uint8[]"
}