package com.example.puzzles.lambda.argument

fun downloadFile(
  onError: (String) -> Unit = { error("Missing failure callback") },
  onSuccess: (String) -> Unit = { error("Missing success callback") }
) {
  try {
    onSuccess("Download successful!")
  } catch (error: Throwable) {
    onError("Something went wrong: " + error.message)
  }
}

fun main() {
  downloadFile { result -> println("1. $result") }
  downloadFile({ result -> println("2. $result") })
}