exit status: 1 with stderr:
<stdin>:1:6: error: type 'E' does not conform to protocol 'Decodable' enum E: Codable { ^ <stdin>:1:6: error: type 'E' does not conform to protocol 'Encodable' enum E: Codable { ^ Swift.Decodable:2:5: note: protocol requires initializer 'init(from:)' with type '(from: Decoder)' init(from decoder: Decoder) throws ^ Swift.Encodable:2:10: note: protocol requires function 'encode(to:)' with type '(Encoder) throws -> ()' func encode(to encoder: Encoder) throws ^