How to get a list of available fields of the Core data entity?

Question

Swift

There is a task to parse the data coming from the server and write them to the entity. The data comes in JSON format, is safely parsed into dictonary and even saved using the entity.setValuesForKeys(dictonary) method. However, there is a small problem. The fact is that the server in the output sometimes adds additional fields that are not in the entity. Why the application crashes...
For example, there is a class:

public class User {
       @NSManaged public var id: Int64
       @NSManaged public var name: String
}

JSON arrives, which is converted to dictonary : [String:Any]
{"id":1,"name":"Andrew"}
Everything is written to the instance safely, but it is worth adding an additional field:
{"id":1,"name" :"Andrew","temp":"Hop-hey"}, The compiler gives a message that the "temp" field does not exist in the User class. Is it possible to somehow get a list of the names of all available fields in the entity in order to further compare them with data from JSON and discard the excess.
Options for adding missing fields or variables to the object are not considered. SWIFT 3 is used.

Answer 1

entity description
Pay attention to the properties:
Code example:

for (name, attr) in  newManagedObject.entity.attributesByName {
    let attrType = attr.attributeType // NSAttributeType enumeration for the property type
    let attrClass = attr.attributeValueClassName ?? "unknown"
    print(name, "=", newManagedObject.valueForKey(name), "type =", attrClass)
}