interface Seaport_1_4 {
    type addresspayable is address;
    type enumBasicOrderType is uint8;
    type enumItemType is uint8;
    type enumOrderType is uint8;
    type enumSide is uint8;
    type structAdvancedOrder is tuple;
    type structBasicOrderParameters is tuple;
    type structOrder is tuple;
    type structOrderComponents is tuple;
    type structOrderParameters is tuple;
    type structReceivedItem is tuple;

    // ...
}