 class DeserializableObject: Deserializable {
     var uuid: String?
     var amount: Int?
+    var price: Double?
+    
     required init?(from raw: Any) {
         map(from: raw)
     }

                    
                    expect(o1?.amount) == anyInt as! Int?
                }
            }
        }
    }

            return [
                "uuid": {self.uuid <-> $0},
                "amount": {self.amount <-> $0},
                "price": {self.price <-> $0}
            ]
        }
    }
