Qualified this in extensions

I want to write something like this :

suspend fun String.decodeBase64(): String = withContext(Dispatchers.Default) {

But I get an error on “this” because it references the CoroutineScope. Is there any syntax possibly with a qualified “this” that would make this error go away ?
My current workaround is very ugly :nauseated_face: :

suspend fun String.decodeBase64(): String 
    val thisString = this
    return withContext(Dispatchers.Default) {


Damn I didn’t see it in this doc at the first read. Thanks !

For readers, solved with this@decodeBase64