Never trust anything coming in over the network. Always decode with the possibility of failure. I.e., a decoder function from a byte array would return a `Resul

Never trust anything coming in over the network. Always decode with the possibility of failure. I.e., a decoder function from a byte array would return a `Result<EnumType, Error>` where `Error` should usefully describe the failure. Sorry to say but JavaScript is the only ecosystem I've seen where people blithely `JSON.parse` anything they get over the network and directly access the JSON structure expecting everything they want to be there without checking. Enum types are supposed to be strict. Decoding raw data into enums can always fail but the failure should be handled at a higher level.