Codable to exclude keys by removing it from parameter list

Codable+ExcludeKeys.swift

import UIKit

struct Country: Codable {
    let name: String
    let capital: String
}

let jsonData: Data = """
{
    "name": "United States of America",
    "capital": "Washington, D.C.",
    "callingCodes": ["1"],
    "region": "Americas",
    "subregion": "Northern America",
    "population": 323947000,
    "area": 9629091,
    "borders": ["CAN", "MEX"]
}
""".data(using: .utf8)!

let country = try! JSONDecoder().decode(Country.self, from: jsonData)

print("Country name = \(country.name)")
print("Country capital = \(country.capital)")