Repo.swift

struct Repo {
    let name: String
    let owner: User
    let isPrivate: Bool
    let license: String
    
    enum CodingKeys: String, CodingKey {
        case name
        case owner
        case isPrivate = "private"
        case license
    }
    
    enum LicenseKeys: String, CodingKey {
        case key
        case name
        case url
    }
}

extension Repo: Decodable {
    init(from decoder: Decoder) throws {
        let values = try decoder.container(keyedBy: CodingKeys.self)
        name = try values.decode(String.self, forKey: .name)
        owner = try values.decode(User.self, forKey: .owner)
        isPrivate = try values.decode(Bool.self, forKey: .isPrivate)
        
        let licenseInfo = try values.nestedContainer(keyedBy: LicenseKeys.self)
        license = try licenseInfo.decode(String.self, forKey: .name)
    }
}