AdRenderer

internal class MyRenderer: AdRenderer {
     private lateinit var adState: AdStateInterface

     private var tapURL: String? = null
     private var imageBitmap by mutableStateOf<ImageBitmap?>(null)
     // ...

     override fun prepare(adState: AdStateInterface) {
         this.adState = adState
         // ...
         // Decode and process data somehow
         // ...
         adState.state = AdState.State.Caching
         scope.launch {
             val imageBitmapDeferred = async { loadBitmap(adState, imageUrl) }
             imageBitmap = imageBitmapDeferred.await()

             if (imageBitmap != null) {
                 adState.state = AdState.State.AdReadyToDisplay
             }
         }
     }

     @Composable
     override fun RenderAd(modifier: Modifier) {
         val imageBitmap = rememberUpdatedState(this.imageBitmap)

         if (imageBitmap.value != null && clickUrl != null) {
             Image(
                 bitmap = imageBitmap.value!!,
                 contentDescription = null,
                 modifier = modifier.clickable { adState.triggerAdClick(clickUrl) }
             )
         }
     }

     private suspend fun loadBitmap(adState: AdStateInterface, url: String?): ImageBitmap? = supervisorScope {
         try {
             BitmapLoader.loadBitmap(url, adState)
         } catch (exception: Exception) {
             adState.state = AdState.State.Error(
                 AdException(
                     AdError.DECODING,
                     exception = Exception("MyRenderer: " + exception.message)
                 )
             )
             null
         }
     }
 }