             apo home <package_name>
             apo add <package_name>
             apo remove <package_name>
+            apo submit
             apo list
         """
     }

    case home(package: String)
    case add(package: String)
    case remove(package: String)
    case list

    public static var exampleUsage: String {

            guard strings.count == 2 else { return nil }
            let package = strings[1]
            self = .remove(package: package)
        case "submit":
            self = .submit
        case "list", "l":
            self = .list
        default:
