It's be easy to add extra values for NSObject, no more codes but a line code can be done.
class CustomObject: NSObject {
}
let object = CustomObject()
object.extValues = ["age": 10, "name": "kd"]
for more usage, you can find in KDObjectExtTests/KDObjectExtTests.swift
CocoaPods
pod 'KDObjectExt'
And that'll be ๐
MIT obvs.