sp71

import UIKit

class FileManager {
    static func decodeJSON<T: Decodable>(fileName: String?, subdirectory: String?) -> T? {
        guard let filename = fileName else { return nil }
        if filename.isEmpty { return nil }
        let decoder = JSONDecoder()
        guard
            let url = Bundle.main.url(forResource: filename, withExtension: "json", subdirectory: subdirectory),
            let data = try? Data(contentsOf: url),