Android: Kotlin Sealed Resource Class For API Request

Resource.kt

package com.data.helpers

sealed class Resource<T, Y>(
    val data: T? = null,
    val error: Errors<Y>? = null
) {
    class Success<T, Y>(data: T) : Resource<T, Y>(data)
    class Error<T, Y>(error: Errors<Y>) : Resource<T, Y>(error = error)
}

sealed class Errors<K>(
    val validationError: K? = null,
    val message: String? = null,
    val code: Int? = null
) {
    class ValidationError<K>(validationError: K, code: Int = 422) :
        Errors<K>(validationError = validationError, code = code)

    class ServerError<K>(message: String, code: Int = 500) :
        Errors<K>(message = message, code = code)
    // more errors as necessary
}