ImproveWithAsync.kt

import kotlinx.coroutines.delay
import kotlinx.coroutines.runBlocking
import kotlin.system.measureTimeMillis

suspend fun loadImage(name: String) {
    println("Loading image: $name...")
    delay(2000) // simulate slow behaviour
    println("Done loading image: $name.")
}

fun main() {
    runBlocking {
        val time = measureTimeMillis {
            loadImage("image1")
            loadImage("image2")
        }
        println("Loading images took: $time ms.")
    }
}