Coroutine Timeout with withTimeout

import kotlinx.coroutines.*

suspend fun slowCall(): String {
    delay(500)
    return "result"
}

fun main() = runBlocking {
    // Throwing version
    try {
        val res = withTimeout(200) { slowCall() }
        println(res)
    } catch (e: TimeoutCancellationException) {
        println("timed out: ${e.message}")
    }

    // Null-returning version — cleaner for "optional" calls
    val maybe: String? = withTimeoutOrNull(200) { slowCall() }
    println("got: $maybe")          // null

    // Mix with retry logic
    val data = withTimeoutOrNull(1000) { slowCall() } ?: "default"
    println(data)
}