EncryptedFileKey

fun EncryptedFileKey(    @Json(name = "alg") alg: String? = null,     @Json(name = "ext") ext: Boolean? = null,     @Json(name = "key_ops") keyOps: List<String>? = null,     @Json(name = "kty") kty: String? = null,     @Json(name = "k") k: String? = null)