Filter2

Filter2.swift

struct Filter<Object> {
    
    let keyPath: PartialKeyPath<Object>
    let matcher: (Any) -> Bool
  
    init<Type>(keyPath: KeyPath<Object, Type>, matcher: @escaping (Type) -> Bool) {
        self.keyPath = keyPath
        self.matcher = { value in
            guard let typedValue = value as? Type else { return false }
            return matcher(typedValue)
        }
    }
}