https://stackoverflow.com/q/70992377/1271826

HoundImages.swift

struct HoundResponse<T: Decodable>: Decodable {
    var message: T?
    var status: String
}

let url = URL(string: "https://dog.ceo/api/breed/hound/images")!
URLSession.shared.dataTask(with: url) { data, _, error in
    guard let data = data, error == nil else {
        print(error ?? URLError(.badServerResponse))
        return
    }

    do {
        let result = try JSONDecoder().decode(HoundResponse<[URL]>.self, from: data)
        print(result)
    } catch let parseError {
        print(parseError)
    }
}.resume()

Or, if you wanted a single random image:

let url = URL(string: "https://dog.ceo/api/breed/hound/images/random")!
URLSession.shared.dataTask(with: url) { data, _, error in
    guard let data = data, error == nil else {
        print(error ?? URLError(.badServerResponse))
        return
    }

    do {
        let result = try JSONDecoder().decode(HoundResponse<URL>.self, from: data)
        print(result)
    } catch let parseError {
        print(parseError)
    }
}.resume()

Note, I added /random to the end of the URL, but used Response<URL> (not an array).