I need help! I've tried 5 wrong solutions and Google search turns up no answers to this coding challenge

/* I've tried the answers at the bottom comment and none are working. Can someone help me with this one? */

let json = “""
{
"title": "Tomb Raider”,
"genre": “action",
"imdb_url": “https://www.imdb.com/title/tt1365519"
}
""".data(using: .utf8)!
struct Movie: Codable {
let title: String
let genre: String
let imdbUrl: String?
enum CodingKeys: String, CodingKey {
case title
case genre
case imdbUrl = “imdb_url"
}
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self) self.title = try container.decode(String.self, forKey: .title) self.genre = try container.decode(String.self, forKey: .genre) self.imdbUrl = try _____________
}
}

/* self.imdbUrl = try container.decode(String.self, forKey: imdb_url)_ self.imdbUrl = try container.decode(String.self, forKey: imdbUrl)_ self.imdbUrl = try container.decode(String.self, forKey: "imdbUrl")_ */