NSData

ByteArray

interface MessagePackHelper {
    fun serialize(payload: String): ByteArray
}

func serialize(payload: String) -> KotlinByteArray {
        // let encyrpted = encrypt(payload) // result is NSData obect
        // todo - would like to convert NSData -> KotlinByteArray
    }

fun NSData.toByteArray(): ByteArray {
    return ByteArray(length.toInt()).apply {
        usePinned {
            memcpy(it.addressOf(0), bytes, length)
        }
    }
}

fun ByteArray.toNSData(): NSData = memScoped { 
    NSData.create(bytes = allocArrayOf(this@toNSData), length = this@toNSData.size.toULong()) 
}

import platform.Foundation.*