A modern programming language that makes developers happier.

kotlinlang

wow, very nice, It’s what I’m looking for. I need to know how to enable this or check if it is enabled

This is blocking version.
If you want non-blocking one use fuel-coroutines:
<https://github.com/kittinunf/Fuel/blob/master/fuel-coroutines/src/main/kotlin/com/github/kittinunf/fuel/coroutines/Coroutines.kt>

But if you not familiar with Kotlin coroutines better to check official coroutine guides:
<https://github.com/Kotlin/kotlinx.coroutines>