syntax = "proto2";

message Fee {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    enum Currency {
        UNKNOWN_CURRENCY = 0;
        LBC = 1;
        BTC = 2;
        USD = 3;
    }
    required Version version = 1;
    required Currency currency = 2;
    required bytes address = 3;
    required float amount = 4;
}