Kotlin merge 2 different Flow

Flow.kt

fun <T> Flow<T>.mergeWith(other: Flow<T>): Flow<T> = flow {
    coroutineScope {
        launch {
            collect { emit(it) }
        }
        launch {
            other.collect { emit(it) }
        }
    }
}

@FlowPreview
fun intFlow(): Flow<Int> = flow {
    for (i in 0..5) {
        emit(i)
        delay(100)
    }
}

@FlowPreview
fun stringFlow(): Flow<String> = flow {
    for (s in arrayOf("a", "b", "c")) {
        emit(s)
        delay(50)
    }
}

@FlowPreview
suspend fun main() {
    try {
        intFlow()
            .map { "$it" }
            .mergeWith(stringFlow())
            .flowOn(Dispatchers.IO)
            .collect { result ->
                println(result)
            }
    } catch (e: Exception) {
        println("Flow exception: $e")
    }
}

/**
 * Prints:
 * a
 * 0
 * b
 * 1
 * c
 * 2
 * 3
 * 4
 * 5
 */