write method
Is called when a value has to be encoded.
Implementation
@override
void write(BinaryWriter writer, ListingType obj) {
switch (obj) {
case ListingType.sell:
writer.writeByte(0);
break;
case ListingType.buy:
writer.writeByte(1);
break;
case ListingType.barter:
writer.writeByte(2);
break;
}
}