title: How to convert Kotlin ByteArray to NsData and viceversa
body: <p>Fighting with a Kotlin Multiplatform project I have ended with the problem of needing to work with <code>NsData</code> on my iOS platform from the <code>sharedModule</code> working with Kotlin Native.</p>
  
  <p>Because of this, I need to transform objectiveC <code>NsData</code> to Kotlin <code>ByteArray</code> and way back. How can I do this?</p>